Content      ..     5      6      7      8     ..

HELICOPTER, ATTACK, AH-64D LONGBOW APACHE. TECHNICAL MANUAL (2002) - page 7

TM 1-1520-251-10

c. FM1 and FM2 lockout sets.

EMERGENCY EMERG

HYD

GUARD

XPNDR

ZEROIZE

d. HF radio.

ON

ON

e. HQ1 WOD or HQ2 MWOD from radio, and SP

ON

Non - Volatile Memory (NVM).

f. All Signal Operating Instructions (SOI) tables/data

in Data Processor (DP) NVM.

LBA2448

g. Mode 4 (KIT-1C).

Figure 3A-6. EMERGENCY Panel

h. IDM network parameters.

3A.18.1 GUARD Lighted Button. Pressing this button

tunes the UHF radio to its guard frequency, which is dis-

i. IDM team member indications in the IDM and DP

played on the EUFD, and causes the system to automati-

NVM.

cally select (RTS) the UHF radio. Pressing the GUARD

button again commands the system to swap the primary

j. Tactical Situation Display (TSD) Waypoints, Tar-

and standby locations of the EUFD: 1) the guard frequen-

gets/Threats, and Control Measures.

cy is swapped into the EUFD’s standby frequency loca-

tion; and 2) the radio and/or preset - net data previously in

NOTE

the standby location is swapped back into the EUFD’s pri-

mary location.

• Emergency zeroize does not erase clas-

sified data in the FCR and DTC

3A.18.2 XPNDR Lighted Button. Pressing this button

sets a code of 7700 in mode 3/A. The XPNDR Mode 3/A

3A.19 CYCLIC GRIP COMMUNICATIONS CONTROLS

button has to be moded ON and XPNDR MASTER button

can be in NORM or STBY prior to activating the XPNDR

The cyclic control grips provide the crew with the RADIO/

emergency button. The EUFD provides a status of 7700

ICS Push-To-Talk (PTT) switch and the Radio Transmit

EMER to indicate that emergency transponder mode has

Select (RTS) switch.

been selected. To exit the emergency transponder mode,

press the XPNDR button again, which will extinguish the

3A.20 ICS/RADIO FOOT CONTROLS

light. After deactivation, the system does not reset any

codes until they are entered manually or with the Data

CS/Radio foot controls are identical for both crew stations

Transfer Cartridge (DTC).

and are located on the forward crew station deck. The ra-

dio PTT foot control is located on the left side of the crew

3A.18.3 ZEROIZE Switch. The ZEROIZE switch is ac-

station. The ICS PTT foot control is located on the right

tioned by first pulling it up and out of the locked position,

side of the crew station.

next to the forward position, and then returning the switch

to the locked or after position to complete the zeroization

3A.21 COMMUNICATION SUBSYSTEM DISPLAY

process. Actioning the ZEROIZE switch zeroes-out the

FORMAT OVERVIEW

following classified data:

The Communication Subsystem controls and displays are

a. COMSEC variables.

accessed through the MPDs in each crew station. The

paging tree (fig 3A-7) illustrates the structure of the COM

b. FM1 and FM2 Hopsets.

subsystem pages.

Use or disclosure of this information is subject to the restriction(s) on the title page of this document.

3A-16

Change 2

TM 1-1520-251-10

COM

PRESET

ORIG

MSG

MSG

IDM

XPNDR

UHF

FM

HF

MAN

NET

EDIT

ID

SEND

REC

SOI

PRESET

EXPND

ERF

SET

DIR

MBR

ORIG

SUFFX

MODEM

DIR

DIR

WOD

FMT

SET

CURRENT

IDM

TEXT

ATHS

MISSION

SELF

NETS

NETS

CALL

PRESETS

SET

ZERO

ADDRESS

(ALE)

(ECCM)

ADDRESS

Available from MENU Page

LBA5067B

Figure 3A-7. COM Subsystem Paging Tree

3A.22 COMMUNICATIONS PROTOCOL AND

networks; 6) BDE MULTICAST , when operating over TI;

NETWORKS

and 7) Unit Task Organization, when operating over TI.

The following communications protocol and network ter-

NOTE

minologies are used throughout this section:

• Tactical Internet Enhanced Position

Location Reporting System (EPLRS) BN/

3A.22.1 Originator ID. The unique digital identification

BDE Wide Network refers to a battalion/

of the ownship or a formal leadership role entity associat-

brigade multicast group that employs the

ed with the ownship. Digital ID’s include: 1) LONGBOW;

EPLRS - Radio Set as the net’s digital ra-

2) TACFIRE; 3) TACTICAL INTERNET {TI}; and 4) FIRE

dio

SUPPORT {FS}.

• The Tactical Internet SINCGARS Stub

Network is a SINCGARS Software Im-

NOTE

provement Program (SIP) network that is

An entity is any single platform, system,

“stubbed” into the EPLRS network

leadership role position, staff role position,

through a gateway; also referred to as a

etc. that has an assigned digital ID relation-

“Roamer Net”

ship.

3A.22.3 Member. A member, or subscriber, is a single

3A.22.2 Network. A functionally related group of mem-

member or station assigned to a network. Each digital

bers that are assigned and configured with a common: 1)

member entity is assigned a unique digital identification.

radio type; 2) SC frequency, or HOPSET/ECCM ID; 3) call

Digital ID’s include: 1) LONGBOW; 2) TACFIRE; 3) IN-

sign; 4) crypto key, when required; 5) protocol, for digital

TERNET {TI}; and 4) FIRE SUPPORT {FS}.

Use or disclosure of this information is subject to the restriction(s) on the title page of this document.

Change 4

3A-17

TM 1-1520-251-10

3A.23 COMMUNICATIONS (COM) PAGE

• T6

HF button

• L1-L5

PRESET buttons

The COM page (fig 3A-8) is used to manage up to ten pre-

• L6

PRESET DIR button

set - networks. All ten (1-10) of the preset - networks, sup-

port Tactical Internet and Fire Support protocols while

• R1-R5

PRESET buttons

Longbow and TACFIRE protocols may only be used with

• R6

XPNDR MASTER button

preset - nets one through eight (1-8). Any of the ten COM

• B2

MAN button

page preset-nets may be replaced through using the

• B3

FALL BACK button

PRESET DIRectory’s preset replace function. The PRE-

SET DIR is a database capable of containing up to 60

• B4

ORIG ID button

Longbow, TACFIRE, Tactical Internet, Fire Support, and

• B5

MSG REC button

voice - only preset database items with up to 15 members

• B5

MSG SEND button

each. Selecting the COM subsystem button or the COM

page button from the MENU page displays the COM

NOTE

page. Various communication subsystem status windows

An operator change to the DAY button will

and control selections are provided by bezel buttons lo-

not detune any of the currently tuned pre-

cated along the edges of the MPD. The paging options at

set - nets; when desired, the operator is re-

the top of the page provide access to subsystem function-

quired to perform subsequent tunes to in-

al pages.

voke the new selected DAY’s data.

3A.23.1 DAY Button. The DAY button provides the ca-

pability to toggle between the two SOI days of the SOI

data that is displayed within the communications subsys-

tem. The two SOI days are numbers with a range of 1- 10.

When the operator actions the DAY button the Display

Processor updates the SOI data to the alternate day. Se-

lecting the button again will toggle the data back to the

original day. Changing the DAY button only effects a

change to the MPD data presentation, a tune or re - tune is

required to effect EUFD preset - net status changes. The

SOI day number is uploaded to the Display Processor

from the DTC as part of the Presets upload.

3A.23.2 IDM Page Button. The IDM button displays

the IDM page.

3A.23.3 XPNDR Page Button. The XPNDR button dis-

plays the XPNDR page.

3A.23.4 UHF Page Button. The UHF button displays

the UHF page.

LBA5477

3A.23.5 FM Page Button. The FM page button dis-

Figure

3A-8.

COM Page

plays the FM page.

3A.23.6 HF Page Button. The HF page button displays

Buttons on the COM page are described below:

the HF page.

• T1

DAY button

3A.23.7 PRESET Buttons. The PRESET (1-10) but-

• T2

IDM button

tons provide the capability to tune the VHF, UHF, FM 1,

FM 2, and HF radios. The VHF, UHF, FM 1, and FM 2 but-

• T3

XPNDR button

tons also provide configuration control for the IDM chan-

• T4

UHF button

nels. The PRESET buttons are not selected upon display

• T5

FM button

of the COM page. The PRESET buttons each contain two

Use or disclosure of this information is subject to the restriction(s) on the title page of this document.

Change 4

3A-19

TM 1-1520-251-10

3A.24.3 NET JOIN REQ Status Window. The NET

JOIN REQuired status window, displayed in white, (fig

3A-9) is commonly displayed for several seconds follow-

ing a FS or TI FM1/FM2 radio tune when the IDM is

expecting a different radio configuration then what the

radio has reported. An automatic NET JOIN to SINC the

IDM with the selected FM radio is performed each time

that a FS or TI preset - net is tuned to FM1/FM2. Digital

messages cannot be transmitted over the tuned TI or FS

preset - net until the advisory is no longer displayed.

NOTE

• When a EUFD IDM FAULT is reporting a

TI FM1 NO RESPONSE, TI FM2 NO RE-

SPONSE, FS FM1 NO RESPONSE, or

FS FM2 NO RESPONSE, the system has

lost the ability to detect a mismatch con-

dition and will not issue a NET JOIN sta-

tus window.

• In the case that the NET JOIN REQ sta-

tus window remains displayed following a

LBA5084B

TI tune, the operator should ensure that

the pertinent FM radio’s HOPSET num-

Figure 3A-9. NET JOIN REQ Status Window

ber (###) matches the TI UTO’s NET ID

number (###) and then retune the radio.

3A.24.4 TI SEEK Status Window. The TI SEEK status

3A.24.1 IDM IN STANDBY Status Window. The IDM

window is displayed when either FM1 or FM2 has been

IN STANDBY status window is displayed whenever the

tuned to the Tactical Internet and the IDM has not estab-

IDM is in the standby mode. This status window is

lished a connection to a TI EPLRS - network gateway. This

displayed in white. No digital messages can be

status window, fig 3A-8, is displayed in inverse green. The

transmitted or received until the IDM is placed in the

IDM will continuously transmit until the gateway sends a

operational mode.

system message to the IDM that the TI EPLRS network

has been established. Once established, the TI status

3A.24.2 IDM INHIBIT Status Window. The IDM INHI-

window will extinguish and a EUFD TI Gateway Con-

BIT status window is displayed whenever the IDM SET

nected indicator symbol will display; see paragraph

page INHBT button is selected. Digital messages cannot

3A.16 - 12 and fig 3A-4.

be transmitted or received until the IDM is placed in the

operational mode. This status window is displayed in

3A.24.5 TI FOUND Status Window. The TI FOUND

white and an associated EUFD IDM INHIBIT advisory is

status window is displayed when either FM1 or FM2 has

displayed. See paragraph 3A.26.9.

been tuned to the Tactical Internet and the IDM has estab-

lished a connection to a TI EPLRS - network gateway.

NOTE

3A.24.6 TI LOGIN REQUIRED Status Window. The TI

LOGIN REQUIRED status window is displayed when the

When the IDM INHBT button is selected, L,

preset selected is for the TI protocol, and a valid user-

T, TI and FS command and control

name and password to verify TI has not been entered.

messages are still received. However, FS

Any FM1/FM2 TI preset tune performed without a LOGIN

artillery messages cannot be received,

will mode the preset - net to voice and will tune radio set-

since the IDM is required to transmit ACK

tings. LOGIN of a valid username and password is accom-

back to the sending platform in order to

plished through the DTU page NAME PASSWORD butt-

receive the message. TI messages will be

ton (paragraph 2.129.3B).

received unless the size of the message is

too large (>576 byte packet) or the length of

3A.24.7 URN NOT IN UTO Status Window. The URN

time since the last automatic present

NOT IN UTO status window is displayed to show that the

position report has timed out.

ownship URN is not in the current UTO when a TI radio

Use or disclosure of this information is subject to the restriction(s) on the title page of this document.

Change 4

3A-21

TM 1-1520-251-10

tune is executed. This indicates either an incorrect UTO or

• L2

DIGITAL ID LONGBOW/TACFIRE but

an incorrect URN. Accordingly, the operator may attempt

ton

to correct this by changing to another UTO that contains

• L3

DIGITAL ID INTERNET button

the ownship URN from the IDM page UTO button, or by

• L4

DIGITAL FIRE SUPPORT button

correcting the ownship URN from the ORIG ID page TI

• L6

ORIG DIR button

URN ID or FS URN ID button.

• R1

LONGBOW ORIG ID button

3A.24.8 TI UTO UPDATE REQ Status Window. The TI

• R2

TACFIRE ORIG ID button

UTO UPDATE REQ status window is displayed when a

• R3

TACFIRE TEAM ID button

UTR (Unit Task Reorganization) has been issued, making

• R4

TACFIRE BCST ID button

changes to the UTO. The operator may continue using the

• B4

ORIG ID button

current UTO or may select another UTO from the IDM

page UTO button, but should update the affected UTO da-

• B5

MSG REC button

tabase when they return to the FARP.

• B6

MSG SEND button

3A.25 ORIG ID PAGE Button. The ORIG ID page (fig

3A.25.1 CALL SIGN Button. The originator’s CALL

3A-10) is accessed by selecting the ORIG ID page

SIGN data entry button permits editing, and creation of,

button located on the COM page. The ORIG ID page

the originator’s call sign as displayed in the OWNSHIP

provides a means of editing the originator/ownship’s

Status window.

callsign and digital identification for the the L, T, TI, and

3A.25.2 DIGITAL ID LONGBOW/TACFIRE But-

FS IDM protocols and Quick Fire Net parameters. Upon

ton. The LONGBOW/TACFIRE button selections per-

display of the page, the DIGITAL ID

LONGBOW/TACFIRE button is selected. The ORIG ID

mits the editing, and creation, of LONGBOW ORIG ID,

page also contains the SET page button (paragraph

TACFIRE ORIG ID, ORIG BCST ID, and ORIG TEAM ID

3A.26).

page.

3A.25.2A ORIG DIR Button. The ORIG DIR button

supports the selection and editing/creation of ORIG global

data for current and future digital protocols. The ORIG

DIR uses the MBR DIR data base items.

3A.25.3 LONGBOW ORIG ID Button. The LONG-

BOW ORIG ID data entry button permits editing the IDM

Originator ID for the Longbow protocol. This ID is used as

the sender’s ID when transmitting Longbow messages.

The keyboard label displays LONGBOW ID and accepts a

one or two - character input between 0 - 39, A - Z, 1A - 1Z,

2A - 2Z, or 3A - 3I.

3A.25.4 TACFIRE ORIG ID Button. The TACFIRE

ORIG ID data entry button permits editing the IDM origina-

tor ID for the Tacfire protocol. This ID is used as the send-

er’s ID when transmitting Tacfire messages. The key-

board label displays TACFIRE ID and accepts a one or

two character input between 0 - 39, A - Z, 1A - 1Z, 2A - 2Z,

or 3A - 3I.

NOTE

LBA5478

The TACFIRE TEAM ID has to initially be

entered as a member in at least one TAC-

Figure

3A-10.

ORIG ID Page LONGBOW/TACFIRE

FIRE preset-net prior to the TACFIRE

Buttons on the ORIG ID page, LONGBOW/TACFIRE se-

TEAM ID being entered through the ORIG

lected:

ID page.

• T2

IDM button

3A.25.5 TACFIRE TEAM ID Button. The TACFIRE

• L1

CALL SIGN button

TEAM ID data entry button permits editing the originator’s

Use or disclosure of this information is subject to the restriction(s) on the title page of this document.

3A-22

Change 4

TM 1-1520-251-10

Tacfire Team ID. This ID represents the TACFIRE team

• R1

TI URN ID button

address associated with ownship’s IDM. The keyboard la-

NOTE

bel displays TEAM ID and accepts a one or two character

input between 0 - 39, A - Z, 1A - 1Z, 2A - 2Z, or 3A - 3I.

Editing the TI URN ID button will also edit

the FS URN ID: the 304 5.1x IDM only sup-

NOTE

ports a single URN for both protocols

The TACFIRE BCST ID has to initially be

3A.25.8 TI URN ID Button. The originator’s INTER-

entered as a member in at least one TAC-

NET TI URN ID data entry button permits editing the cur-

FIRE preset-net prior to the TACFIRE

rent tactical internet digital URN ID. The keyboard label

BCST ID being entered through the ORIG

displays TI URN and accepts a data entry of 0 through

ID page.

16,777,215.

3A.25.6 TACFIRE BCST ID Button. The TACFIRE

BCST ID data entry button permits editing the IDM’s

3A.25.9 DIGITAL ID FIRE SUPPORT Button. The

Broadcast ID for the Tacfire protocol. This ID represents

originators DIGITAL ID FIRE SUPPORT button (fig

the TACFIRE broadcast address associated with the origi-

3A-12) selection commands the display of Fire Support

nator’s aircraft. The keyboard label displays BROAD-

originator ID data.

CAST ID and accepts a one or two character input be-

tween 0 - 39, A - Z, 1A - 1Z, 2A - 2Z, or 3A - 3I.

3A.25.7 DIGITAL ID INTERNET Button. The origina-

tor’s DIGITAL ID INTERNET button (fig 3A-11) selection

commands the display of Tactical interface originator ID

data.

LBA5480

Figure 3A-12. ORIG ID Page FIRE SUPPORT

Buttons on the ORIG ID page, FIRE SUPPORT selected:

• T2

IDM button

LBA5479

• L1

CALL SIGN button

Figure 3A-11. ORIG ID Page INTERNET

• L2

DIGITAL ID LONGBOW/TACFIRE but

ton

Unique buttons on the ORIG ID page, INTERNET se-

• L3

DIGITAL ID INTERNET button

lected:

• L4

DIGITAL FIRE SUPPORT button

• L3

DIGITAL ID INTERNET button

• R1

FS URN ID button

Use or disclosure of this information is subject to the restriction(s) on the title page of this document.

Change 4

3A-23

TM 1-1520-251-10

• R2

IP ADDRESS button

fire net access rank. The keyboard label displays AC-

CESS RANK and accepts a data entry of 0 through 127.

• R3

NET MASK button

• R4

ACCESS RANK button

3A.25.14 TOT STATIONS Button. The originator’s

• R5

TOT STATIONS button

FIRE SUPPORT TOT STATIONS data entry button per-

mits editing the quick fire net’s total number of fire support

• R6

STATION ID button

stations. The keyboard label displays TOT STAT and ac-

• B4

ORIG ID button

cepts a data entry of 0 through 127.

• B5

MSG REC button

3A.25.15 STATION ID Button. The originator’s FIRE

• B6

MSG SEND button

SUPPORT STATION ID data entry button permits editing

the fire support quick fire net station ID. The keyboard la-

3A.25.10 FS URN ID Button. The originator’s Fire

bel displays STATION ID and accepts a data entry of 4

Support Unit Reference Number data entry button per-

through 127.

mits editing, and creation of, the originator’s FS URN ID.

The keyboard label displays FS URN and accepts a data

3A.26 IDM PAGE

entry of 0 through 16,777,215.

The IDM page is accessed by selecting the IDM page but-

NOTE

ton from either the COM page, ORIG ID page, or the MSG

SEND page. The IDM page provides a means of editing

• The existing FIRE SUPPORT network re-

various IDM parameters for both the Tactical Internet and

quires a unique IP association with each

Fire Support. It also provides access to changing the

entity’s digital ID URN.

IDM’s mode (standby or operate) and to inhibit the IDM

• Editing the FS URN ID button will also

from sending messages.

edit the TI URN ID: the 304 v7.x IDM only

supports a single URN for both protocols.

3A.25.11 IP ADDRESS Button. The originator’s FIRE

SUPPORT IP ADDRESS data entry button permits edit-

ing the current fire support IP address. The keyboard label

displays IP ADDR and accepts a data entry of 0.0.0.0

through 255.255.255.255.

3A.25.12 NET MASK Button. The ORIG ID page FIRE

SUPPORT NET MASK data entry button displays, and al-

lows modification of, the current fire support net mask.

The keyboard label displays NET MASK and accepts a

data entry of 0.0.0.0 through 255.255.255.255.

NOTE

• When required by the artillery, a NET

mask is used to create subnets and to de-

termine what subnet an IP address be-

longs to.

• The advantage of a subnet is that JVMF

LBA5481

traffic on the same subnet doesn’t have

to go out onto the network above it, re-

Figure 3A-13.

IDM SET Page

ducing the traffic bandwidth on the larger

Buttons on the SET page:

network.

• L2

MISSION TYPE button

3A.25.13 ACCESS RANK Button. The originator’s

• L3

MSG SECURITY button

FIRE SUPPORT ACCESS RANK data entry button per-

mits editing, and creation of, the current fire support quick

• L4

NAME/PASSWORD button

Use or disclosure of this information is subject to the restriction(s) on the title page of this document.

3A-24

Change 4

TM 1-1520-251-10

• L5

UTO button

• L6

IDM ZEROIZE button

• R2

IAUTO SA button

• R3

AUTO SA DUSTANCE button

• R4

AUTO SA button

• R6

IDM OPER/STBY button

• R3

IDM INHIBIT button

3A.26.1 MSN TYPE Button. The IDM page MSN TYPE

button provides the means to change the operational indica-

tor of the messages transmitted on the Tactical Internet or

Fire Support Nets. Selecting the MSN TYPE button provides

three options: OPERATION, EXERCISE, and SIMULATION.

3A.26.2 MSG SECURITY Button. The IDM page MSG

LBA5482

SECURITY button provides a means to change the secu-

rity level of the messages transmitted over the Tactical In-

Figure

3A-13A. UTO EDIT OPTIONS

ternet or Fire Support Nets. Selecting the MSG SECURI-

TY button provides three options: SECRET,

NOTE

CONFIDENTIAL, and UNCLASSIFIED.

Member data is retained in DP NVM and is not

reset, with the exception of IDM messages,

the remaining data can subsequently be re-

NOTE

loaded via the DTC.

3A.26.4 IDM ZEROIZE Button. The IDM ZEROIZE

• The IDM will not accept incoming TI and FS

button provides a yes/no confirmation for resetting the

messages that are set to a security classifi-

following data in the IDM:

cation level that is higher than the current

login security level setting.

• Originator data (for tactical internet information)

• Subscriber data

• The resident IDM UTO’s are received from

• Teams

the loaded DMS DTU page.

• Nets

• Zones

3A.26.3 UTO Button. The IDM page UTO button provides

• Messages (that reside in the message receive

a means to select / change the single UTO that the IDM will

buffer)

utilize. The UTO button displays the UTO number and name

3A.26.5 AUTO SA TIME Button. The ORIG ID/MSG

descriptor. Selecting the UTO button will display up to 5 differ-

SEND IDM SET page AUTO SA TIME data entry button al-

ent UTO edit button options (figure 3A-13A), each one asso-

lows the operator to set the maximum time interval for the

ciated with a display field number of 1-5. All the numbered

IDM to transmit the TI Entity Data Message message (provid-

UTO edit button display fields include a unique UTO name

ing the present position information) to the Tactical Internet

descriptor of up to 12 characters. Selecting a numbered UTO

SA server. The IDM will only send this message when tuned

edit button will: 1) command the IDM to use the selected

to the TI and the SA ON/OFF button is ON. The valid data

UTO; 2) command the IDM page to be displayed; 3) display

entry is 11 through 4095 seconds.

the UTO’s asscociated number of 1-5 with the UTO button; 4)

will display the TI UTO status window with the active UTO’s

3A.26.6 AUTO SA DISTANCE Button. The ORIG ID/

unique name descriptor (paragraph 3A.26.11).

MSG SEND IDM SET page AUTO SA DISTANCE data

Use or disclosure of this information is subject to the restriction(s) on the title page of this document.

Change 4

3A-25

TM 1-1520-251-10

entry button allows the operator to set the maximum change

Unit Task Organization (UTO) that the IDM is currently config-

in distance before the IDM sends the TI Entity Data Message

ured with. This status window is only displayed when the IDM

message (providing the present position information) to the

is in operate.

Tactical Internet SA server. The IDM will only send this mes-

3A.27 COM PAGE - PRESET SELECTED

sage when tuned to the TI and the SA ON/OFF button is ON.

The valid data entry is 10 - 2000 meters.

The COM page (fig 3A-14) preset status window displays

the data associated with the preset that is currently se-

3A.26.7 AUTO-SA Button. The AUTO SA button allows

lected.

the operator to either enable JVMF position reports to be au-

tomatically issued over TI, or to DISABLE the IDM’s capability

to automatically report the TI Entity Data Message message

(providing the present position information) to the Tactical In-

ternet SA server. The message will be transmitted when the

time set by the AUTO SA TIME has elapsed or the aircraft

has moved (from the last position reported) farther than the

distance set by the AUTO SA DISTANCE.

3A.26.8 IDM OPER/STBY Button. The IDM page’s IDM

OPER/STBY button permits the operator to toggle between

standby and operate. Whenever the IDM is in STBY, digital

messages cannot be transmitted and JVMF messages will

not be received. The IDM must be set to STBY before re-

moving aircraft power or prior to the need to reset the IDM

circuit breaker. When in STBY, an IDM IN STANDBY adviso-

ry will be displayed on the COM page and EUFD.

NOTE

Any SA data or JVMF messages already re-

ceived will be lost when the IDM transitions

to STBY.

LBA5089

3A.26.9 IDM INHBT Button. When selected, the IDM SET

page IDM INHBT button prevents the IDM from performing

Figure 3A-14. COM Page (PRESET Selected)

automatic message transmits on any IDM tuned radio (in-

cluding machine ACKs for all protocols and automated re-

The following unique buttons are displayed on the COM

sponse messages). The selected IDM INHBT button is white

page when a preset is selected:

and the send buttons will be removed from all pages. When

• T2

RADIO VHF button

selected, an IDM INHIBIT advisory will be displayed on the

COM page and EUFD.

• T3

RADIO UHF button

• T4

RADIO FM1 button

• The IDM INHBT button does not inhibit

HF radio transmissions.

• T5

RADIO FM2 button

• T6

RADIO HF button

• The HF radio’s transmissions are inhib-

• B4

NET page button

ited when the HF is moded to SILENT or,

when on the ground, the HF GND ORIDE

• B6

PRESET EDIT page button

button is not selected (unboxed).

NOTE

Each specific RADIO T2-T6 buttons are

3A.26.10 IDM MISMATCH STATUS Window. The IDM

displayed anytime the selected preset con-

MISMATCH STATUS window displays the mismatch status

tains valid data for the radio type.

for TI IDM parameters. This status window is only displayed

when TI is tuned to one of the radios and the IDM is reporting

3A.27.1 NET Page Button. The NET button displays

one of the parameters is different from what was commanded

the net member page. See paragraph 3A.33.

by the DP.

3A.27.2 PRESET EDIT Page Button. The PRESET

3A.26.11 UTO STATUS Window. The ORIG ID/MSG

EDIT button displays the preset edit page. See paragraph

SEND IDM SET page UTO STATUS window displays the

3A-17.

Use or disclosure of this information is subject to the restriction(s) on the title page of this document.

3A-26

Change 4

TM 1-1520-251-10

VHF radio (108.000 through 151.975 MHz at 0.025 spac-

ing) using the KU. The KU label display is VHF FREQ and

the selection of the KU’s ENTER button commands the

VHF radio to tune to the manually set frequency.

3A.28.4 UHF FREQ Button. The UHF FREQ data

entry button provides the capability to manually tune the

UHF radio (225.000 through 399.975 MHz at 0.025 spac-

ing steps) using the KU. The KU label display is UHF

FREQ and the selection of the KU’s ENTER button com-

mands the UHF radio to tune to the manually set frequen-

cy.

3A.28.4A SOI AUTH Page Button. The SOI AUTH

page button provides the capability to authenticate com-

munication transmissions and access expanders.

3A.28.4B SOI EXPND Page Button. The SOI EXPND

page (fig 3A-15F) provides the capability to view the ex-

pander lookup table.

3A.28.5 FM1 FREQ Button. The FM1 FREQ data

entry button provides the capability to manually tune the

LBA5483

FM1 radio (30.000 through 87.975MHz at 0.025 MHz

steps) using the KU. The KU label display is FM1 FREQ

Figure 3A-15. MAN Page

and the selection of the KU’s ENTER button commands

the FM1 radio to tune to the manually set frequency.

The MAN page contains the following unique buttons:

3A.28.6 FM2 FREQ Button. The FM2 FREQ data

• T2

VHF GUARD button

entry button provides the capability to manually tune the

• T3

UHF GUARD button

FM1 radio (30.000 through 87.975MHz at 0.025 MHz

• T5

SOI AUTH page button

steps) using the KU. The KU label display is FM2 FREQ

and the selection of the KU’s ENTER button commands

• T6

SOI EXPND button

the FM2 radio to tune to the manually set frequency.

• L1

VHF FREQ button

• L2

UHF FREQ button

3A.28.7 HF RECV FREQ Button. The HF RECV

FREQ data entry button provides the capability to manual-

• L3

FM1 FREQ button

ly tune the HF radio receive frequency (2.0000 through

• L4

FM2 FREQ button

29.9999 MHZ at 0.1 kHz steps). The KU label display is

• R1

HF RECV FREQ button

HF RECV FREQ and the selection of the KU’s ENTER

• R2

HF RECV EMISSION (USB/LSB) button

button commands the HF radio to tune to the manually set

• R3

HF XMIT FREQ button

HF RECV frequency.

• R4

HF XMIT EMISSION (USB/LSB) button

3A.28.8 HF RECV EMISSION Button. The HF RECV

• B3

VHF WB/NB antenna button

EMISSION button provides the capability to select the HF

• B4

VHF TONE button

radio receive emission mode for the manual receive fre-

• B5

UHF WB/NB antenna button

quency. The button provides the following HF RECV

• B5

UHF TONE button

EMISSION multi - state options:

• AME to select Amplitude Modulation Equivalent.

3A.28.1 VHF GUARD Button. The VHF GUARD but-

ton provides the capability to rapidly tune the VHF radio to

• CW to select Continuous Wave.

the guard frequency.

• LSB to select Lower Sideband.

3A.28.2 UHF GUARD Button. The UHF GUARD but-

• USB to select Upper Sideband.

ton provides the capability to rapidly tune the UHF radio to

Upper Sideband is the default receive emission mode

the guard frequency.

upon power - up. Changing the receive emission mode of

3A.28.3 VHF FREQ Button. The VHF FREQ data

the HF radio automatically changes the transmit emission

entry button provides the capability to manually tune the

mode to the same value.

Use or disclosure of this information is subject to the restriction(s) on the title page of this document.

Change 4

3A-27

TM 1-1520-251-10

3A.28.9 HF XMIT FREQ Button. The HF XMIT FREQ

3A.28.14 UHF TONE Button. The UHF TONE momen-

data entry button provides the capability to manually tune

tary button provides the capability to enable the UHF Ra-

the HF radio receive frequency (2.0000 through 29.9999

dio (ARC - 164) Test Tone. Selection of the UHF TONE

MHZ at 0.1 kHz steps). The KU label display is HF XMIT

button transmits an over the air radio generated tone. The

FREQ and the selection of the KU’s ENTER button com-

tone is used for test and problem isolation.

mands the HF radio to tune to the manually set HF XMIT

3A.28A MAN SOI AUTH Page

frequency.

The AUTH page (fig 3A-15A) provides the capability to

3A.28.10 HF XMIT EMISSION Button. The HF XMIT

authenticate communication transmissions and access

EMISSION button provides the capability to select the HF

expanders.

radio receive emission mode for the manual receive fre-

quency. The button provides the following HF XMIT EMIS-

SION multi - state options:

• AME to select Amplitude Modulation Equivalent.

• CW to select Continuous Wave.

• LSB to select Lower Sideband.

• USB to select Upper Sideband.

Upper Sideband is the default receive emission mode

upon power - up. Changing the receive emission mode of

the HF radio automatically changes the transmit emission

mode to the same value.

3A.28.11 VHF WB/NB Button. VHF WB/NB button

provides the capability to toggle between the WB (Wide

Bandwidth, 18KHz) and NB (Narrow Bandwidth, 9.5KHz)

modes. The default state upon power-up for the VHF

bandwidth is narrow.

3A.28.12 VHF TONE Button. The VHF TONE momen-

tary button provides the capability to enable the VHF Ra-

dio (ARC - 186) Test Tone. Selection of the VHF TONE

LBA5119

button transmits an over the air radio generated tone. The

tone is used for test and problem isolation.

Figure

3A-15A.

MAN SOI AUTH Page

3A.28.13 UHF WB/NB Button. UHF WB/NB button

• T5

AUTH (Authentication) page button

provides the capability to toggle between the WB (Wide

• T6

EXPND (Expander) page button

Bandwidth, ±35KHz deviation from the channel frequency

• R1

AUTH CHALLENGE button

allowing more noise or crosstalk from frequencies within

.025MHz ) and NB (Narrow Bandwidth allows ±12KHz

• R2

AUTH REPLY button

deviation from the channel frequency) modes. The default

• R4

XMSN AUTH INITIATE button

state upon power - up for the VHF bandwidth is narrow.

• R5

XMSN AUTH VALIDATE button

The UHF bandwidth is automatically set to WB option

when the UHF mode is set to the UHF CIPHER and to NB

3A.28A.1 AUTH CHALLENGE Button. The AUTH

when the UHF mode is set to the UHF PLAIN. Upon pow-

CHALLENGE button provides the capability to extract the

er - up, the UHF bandwidth is determined by the state of

challenge/reply table and display the codes within the

the UHF KY - 58.

AUTH CHALLENGE REPLY window (fig 3A-15B ).

Use or disclosure of this information is subject to the restriction(s) on the title page of this document.

3A-28

Change 4

TM 1-1520-251-10

LBA5485

LBA5486

Figure 3A-15C. AUTH Page - AUTH REPLY

Figure 3A-15B. AUTH Page - AUTH CHALLENGE

3A.28A.3 XMSN AUTH INITIATE Button. The XMSN

AUTH INITIATE button extracts the transmit authentica-

3A.28A.2 AUTH REPLY Button. The AUTH REPLY

tion codes and displays them in the XMSN AUTH window

button provides the capability to enter a challenge code

(fig 3A-15D).

and extract the reply code from the challenge/reply table

and display the code within the AUTH CHALLENGE RE-

PLY window (fig 3A-15C).

LBA5487

Figure 3A-15D. AUTH Page - XMSN AUTH INITIATE

Use or disclosure of this information is subject to the restriction(s) on the title page of this document.

Change 4

3A-28.1

TM 1-1520-251-10

NOTE

3A.28A.5 EXPANDER (EXPND) PAGE

An ALL CODES USED message will be dis-

The EXPND page (fig 3A-15F), a view - only page, pro-

played in white when all the codes have

vides the capability to view the expander lookup table.

been used.

The expander lookup table displays the one character ex-

pander and descriptor field. Up to 26 expanders may be

3A.28A.4 XMSN AUTH VALIDATE Button. The

displayed from the lookup table.

XMSN AUTH VALIDATE button (fig 3A-15E) provides the

capability to verify a transmit authentication code from the

transmit authentication table. The VALID label is dis-

played when the transmit authentication matches the

transmit authentication code entered through the KU. The

INVALID label is displayed when the transmit authentica-

tion table does not match the transmit authentication code

entered through the KU.

LBA5490

Figure 3A-15F. MAN SOI EXPND Page

3A.28A.6 EXPND Page Button. The EXPND button dis-

plays the EXPND page (para 3A.23).

3A.29 COM PAGE - PRESET AND RADIO SELECTED

LBA5489

The COM page (fig 3A-16) specific TUNE VHF, FM1,

Figure 3A-15E. AUTH Page - XMSN AUTH

FM2, or HF button options are displayed following the

VALIDATE

selection of a RADIO option button.

Use or disclosure of this information is subject to the restriction(s) on the title page of this document.

3A-28.2

Change 4

TM 1-1520-251-10

The COM page with preset selected contains the follow-

ing unique buttons:

• T2

RADIO VHF button

• T3

RADIO UHF button

• T4

RADIO FM1 button

• T5

RADIO FM2 button

• T6

RADIO HF button

a. TUNE RADIO Command IDM - RADIO Configu-

ration Updates. When a VHF, UHF, FM1, or FM2 TUNE

RADIO button assigned to an IDM preset - net is selected

the following radio and IDM processes occur:

• The radio will tune - configure.

• The radio channel in the IDM will be configured

LBA5091A

when the preset has an IDM protocol assigned.

Figure

3A-16.

COM Page Preset and Radio FM1

• The Crypto in the KY will be configured if the preset

Selected

has a Crypto Net Variable displayed.

Use or disclosure of this information is subject to the restriction(s) on the title page of this document.

Change 4

3A-28.3/(3A-28.4 blank)

TM 1-1520-251-10

d. TUNE HF SC Button. Selecting the TUNE HF

3A.30.2 EDIT UNIT ID Button. The EDIT UNIT ID but-

SC button tunes the HF radio to the HF SC frequencies for

ton changes the preset Unit ID.

both the upper (U) and lower (L) sidebands as displayed

in the HF SC Status Field of the PRESET STATUS win-

3A.30.3 EDIT CALL SIGN Button. The EDIT CALL

dow.

SIGN button changes the preset call sign.

3A.30 PRESET EDIT PAGE

3A.30.4 EDIT PRIMARY RADIO Button. The EDIT

PRIMARY RADIO button provides the capability to

change the radio-frequency/radio-mode association of

The PRESET EDIT page (fig 3A-17) provides the capabili-

the Primary Radio indicator arrow (i.e. non - solid arrow) in

ty to modify the currently selected preset as displayed in

the PRESET STATUS window.

the PRESET STATUS window. Along with the Unit ID,

those items currently displayed for edit are displayed in

3A.30.5 MODEM Page Button. The MODEM button

full intensity in the PRESET STATUS window, as opposed

displays the MODEM page. See paragraph 3A.31.

to partial intensity.

3A.30.6 PRESET EDIT Page Button. The PRESET

EDIT page button displays the PRESET EDIT page (fig

3A-18).

LBA5092

Figure 3A-17. PRESET EDIT Page (UNIT Selected)

LBA5093

The PRESET EDIT page contains the following unique

Figure 3A-18. PRESET EDIT Page (V/UHF Selected)

buttons when the EDIT grouped option is UNIT:

• T2 - T5

EDIT buttons

The PRESET EDIT page contains the following unique

buttons when the EDIT grouped option is V/UHF:

• L1

EDIT UNIT ID button

• L2

EDIT CALL SIGN button

• L1

EDIT VHF FREQ button

• L4

EDIT PRIMARY RADIO/MODE button

• R1

EDIT UHF MODE button

• R6

MODEM page button

• R2

UHF CNV selection button

• R3

EDIT HQ NET button

3A.30.1 EDIT Buttons. The EDIT buttons provide the

• R4

EDIT UHF FREQ button

capability to select a specific element of a preset’s COM

data to edit.

• R6

MODEM button

Use or disclosure of this information is subject to the restriction(s) on the title page of this document.

3A-30

Change 2

TM 1-1520-251-10

3A.30.7 EDIT VHF FREQ Button. The EDIT VHF

3A.30.12 EDIT FM1/FM2 MODE Button. The EDIT FM

FREQ button changes the VHF element of the preset to a

1/FM2 MODE button provides the capability to change the

frequency in the range of 108.000 through 155.995, in in-

UHF Crypto Mode by toggling between Plain or Cipher

crements of 5 KHz (except for invalid 8.33 KHz channels).

mode for the selected preset.

3A.30.8 EDIT UHF MODE Button. The EDIT UHF

3A.30.13 EDIT FM1/FM2 CNV Button. The EDIT

MODE button provides the capability to change the UHF

FM1/FM2 CNV button allows changing the Crypto Net

Crypto Mode by toggling between Plain or Cipher mode

Variable for the selected preset from 1-6.

for the selected preset.

3A.30.14 EDIT FM1/FM2 HOPSET Button. The HOP-

3A.30.9 EDIT UHF CNV Button. The EDIT UHF CNV

SET button provides six HOPSET button options. The

button allows changing the Crypto Net Variable, for the se-

hopset selected determines the radio FH characteristics

lected preset, from 1-6.

(hopping rate, frequencies and frequency order).

3A.30.10 EDIT HQ NET Button. The EDIT HQ NET

3A.30.15 EDIT FM1/FM2 FREQ Button. The EDIT

button changes the HAVEQUICK net number of the preset

FM1/FM2 FREQ button changes the FM1/FM2 for the se-

in the range of 00.000 to 99.975.

lected preset to a frequency in the range of 30.000

through 87.995, in increments of 5 KHz.

3A.30.11 EDIT UHF FREQ Button. The EDIT UHF

FREQ button changes the UHF element of the preset to a

3A.30.16 EDIT FM1/FM2 DATA SWAP Button. The

frequency in the range of 225.000 through 399.985 MHz

EDIT FM1/FM2 DATA SWAP button exchanges the FM1

in increments of 5 KHz.

and FM2 data displayed on the PRESET EDIT FM se-

lected page.

3A.30.17 EDIT HF CRYPTO MODE Button. The EDIT

HF CRYPTO MODE button (fig 3A-20) provides the capa-

bility to change the HF Crypto Mode by toggling between

Plain or Cipher mode for the selected preset.

LBA5094

Figure 3A-19. PRESET EDIT Page (FM Selected)

LBA5095

NOTE

Figure 3A-20. PRESET EDIT Page (HF Selected)

The PRESET EDIT FM selected page but-

tons (fig 3A-19) for FM1 and FM2 are func-

3A.30.18 EDIT HF CRYPTO CNV Button. The EDIT

tionally identical and the definitions below

HF CRYPTO CNV button allows changing the Crypto Net

apply to both radios.

Variable for the selected preset from 1-6.

Use or disclosure of this information is subject to the restriction(s) on the title page of this document.

Change 3

3A-31

TM 1-1520-251-10

3A.30.19 EDIT HF PRESET CHAN Button. The EDIT

HF PRESET CHAN button changes the HF Preset chan-

nel number of the preset in the range of 1-20.

3A.30.20 EDIT HF ALE NET Button. The EDIT HF

ALE NET button changes the HF ALE net number of the

preset in the range of 1-20.

3A.30.21 EDIT HF ECCM NET Button. The EDIT HF

ECCM NET button changes the HF ECCM net number of

the preset in the range of 1-12.

3A.30.22 EDIT HF RECV FREQ Button. The EDIT HF

RECV FREQ button changes the HF manual receive fre-

quency of the preset in the range of 2.0000 through

29.9999 MHz, in increments of 100 Hz.

3A.30.23 EDIT HF RECV EMISSION Button. The

LBA5096

EDIT HF RECV EMISSION button changes the HF manu-

al receive emission of the preset between LSB (Lower

Figure 3A-21. MODEM Page With LONGBOW

Side Band), USB (Upper Side Band), CW (Continuous

Selected

Wave), or AME (Amplitude Modulation Equivalent).

NOTE

The Longbow Protocol used in the IDM is

also known as the Air Force Applications

3A.30.24 EDIT HF XMIT FREQ Button. The EDIT HF

Program Development (AFAPD)

XMIT FREQ button changes the HF manual transmit fre-

quency of the preset in the range of 2.0000 through

3A.31.2 LONGBOW PROTOCOL. When the multi -

29.9999 MHz, in increments of 100 Hz.

state PROTOCOL button is selected to LONGBOW, the

following unique buttons are displayed:

• AUTO ACK button

3A.30.25 EDIT HF XMIT EMISSION Button. The EDIT

• RETRIES button

HF XMIT EMISSION button changes the HF manual

• BAUD RATE button

transmit emission of the preset between LSB (Lower Side

Band), USB (Upper Side Band), CW (Continuous Wave),

a. AUTO ACK Button. The AUTO ACK button pro-

or AME (Amplitude Modulation Equivalent).

vides the capability to enable or disable the auto acknowl-

edge mode.

b. RETRIES Button. The RETRIES button pro-

3A.31 MODEM PAGE BUTTON

vides the capability to select the number of retransmis-

sions the IDM performs (2, 1, or 0) with no acknowledge-

ment from a subscriber.

The MODEM page button displays the MODEM page.

The MODEM page provides the capability to modify the

c. BAUD RATE Button. The BAUD RATE button

IDM net that is assigned to the PRESET button. The MO-

provides the following baud rate options:

DEM page is accessed by selecting the MODEM page

• 16000

button from the PRESET EDIT or NET page. The selected

• 8000

preset’s current IDM type L, T, I, F, or NONE determines

• 2400

the protocol displayed on the MODEM page.

• 1200

• 600

3A.31.1 PROTOCOL Button. The PROTOCOL button

• 300

(fig 3A-21) provides the capability to select LONGBOW,

• 150

TACFIRE, INTERNET, FIRE SUPPORT or NONE.

• 75

Use or disclosure of this information is subject to the restriction(s) on the title page of this document.

3A-32

Change 3

TM 1-1520-251-10

3A.31.3 TACFIRE PROTOCOL. When the multi - state

TACFIRE 1200 and TACFIRE 600 are the only options

PROTOCOL button (fig 3A-22) is selected to TACFIRE, the

available for TACFIRE messages sent to artillery. TAC-

MODEM page displays the TACFIRE PROTOCOL buttons.

FIRE 1200 is the default for the TACFIRE nets. The slow-

er rates for the AIR NETS are to be used only if reception

is poor at high rates.

LBA5097

Figure 3A-22. MODEM Page With TACFIRE

Selected

LBA5098

When the TACFIRE button is selected, the following

unique buttons are displayed:.

Figure 3A-23. MODEM Page With TACFIRE and

• RETRIES button

BAUD RATE Selected

• BAUD RATE button

• AUTH button

c. AUTH Button. The AUTH two - state button al-

• BLOCK button

lows the crew to toggle between NONE and MANUAL. If

• PREAMBLE button

NONE is selected, no authentication is required. This

• MONITOR button

function automatically displays NONE due to use of auto-

matic authentication. If MANUAL is selected, an operator

• XMIT RADIO button

input of the transmission authenticator is required each

a. RETRIES Button. The RETRIES button pro-

time transmission is attempted. MANUAL authentication

vides the capability to select the number of retransmis-

is normally only used in air - to - air or air - to - ground TAC-

sions the IDM performs (2, 1, or 0) with no acknowledge-

FIRE. If MANUAL is selected, but no manual authentica-

ment from a subscriber.

tion is desired at the time of transmission, the message

will be sent on the second press of the SEND button.

b. BAUD RATE Button. The BAUD RATE button

(fig 3A-23) provides baud rate options of:

d. BLOCK Button. The BLOCK two-state button al-

• 1200

lows the crew to toggle between SINGLE and DOUBLE.

• 600

SINGLE BLOCK sends each segment of data once per

• 300

SEND. DOUBLE BLOCK sends each data segment twice

• 150

per SEND. DOUBLE should be used when atmospheric con-

• 75

ditions/reception are poor or when jamming is suspected.

Use or disclosure of this information is subject to the restriction(s) on the title page of this document.

Change 2

3A-33

TM 1-1520-251-10

NOTE

• A minimum preamble of 0.4 seconds is

required when transmitting through cryp-

to equipment. The longer the preamble,

the longer the air time.

• When establishing communications with

AFATDS, ensure that 2.3 seconds is used

by both the AH-64D and the artillery.

e. PREAMBLE Button. The PREAMBLE button is

the ON AIR time that establishes a digital link between the

radios prior to the message being sent. Selecting the

PREAMBLE button provides the capability to modify this

ON AIR time. An interval between 0.1 and 9.9 seconds

may be entered.

f. MONITOR Button. Selection of the MONITOR

button allows the crew to modify the time that the IDM lis-

LBA5099B

tens for interfering traffic prior to transmitting the mes-

sage. A time from 0.5 seconds to 9.9 seconds or OFF may

Figure 3A-24. MODEM Page With FIRE SUPPORT

be entered. To turn this function off the crew must enter

Selected (IDM Mismatch Detected)

zero, the word OFF is displayed on the ATHS page. If

When FIRE SUPPORT is selected, the following unique

more than 15 seconds have elapsed after the SEND but-

buttons are displayed:

ton has been depressed, the IDM will reset automatically

and the SEND button must be pressed again. Voice trans-

• BAUD RATE button

mission has priority over digital transmission; therefore,

• NET ACCESS button

the IDM will wait until the airway is clear of voice traffic if a

• TRAFFIC LOAD button

monitor time has been selected.

• EDC FEC button

• EDC TDC button

• EDC SCRAMBLE button

g. XMIT RADIO Button. Selection of the multi -

state XMIT RADIO button allows the crew to select the ra-

• RETRIES button

dio that the IDM will use to transmit the TACFIRE digital

a. BAUD RATE Button. The BAUD RATE button

messages. Preset options of VHF, UHF, FM1, and FM2

(fig 3A-25) specifies the baud rate and the mode for the

are displayed upon selection of of the XMIT RADIO but-

currently selected preset’s IDM Net which will be used for

ton. When the preset is selected and tuned to a radio, that

sending and receiving fire support data. The button pro-

radio will be set at XMIT RADIO. After the preset has been

vides options of the following SINC BAUD RATES:

tuned to a radio, this button allows the operator to config-

• 16000

ure it to a different radio. Artillery TACFIRE nets are nor-

mally set on FM1 or FM2.

• 4800

• 2400

• 1200

3A.31.4 INTERNET PROTOCOL Button. When the

• 600

multi - state PROTOCOL button is selected to INTERNET,

no unique button is displayed.

The button provides options of the following ENHANCED

BAUD RATES:

• 9600

3A.31.5 FIRE SUPPORT PROTOCOL Button. When

• 4800

the PROTOCOL button (fig 3A-24). is selected to FIRE

• 2400

SUPPORT, the MODEM page displays the FIRE SUP-

PORT PROTOCOL buttons.

• 200

Use or disclosure of this information is subject to the restriction(s) on the title page of this document.

3A-34

Change 3

TM 1-1520-251-10

LBA5100

LBA5101

Figure 3A-26. MODEM Page With FIRE SUPPORT

NET ACCESS Selected

Figure 3A-25. MODEM Page with FIRE SUPPORT

c. TRAFFIC LOAD Button. The TRAFFIC LOAD

BAUD RATE Selected

button provides the means to select 1 of 3 TRAFFIC

LOAD button options for use with the preset selected. The

TRAFFIC LOAD button options set the flow control pa-

rameter size. Button options include:

• HEAVY

b. NET ACCESS Button. The NET ACCESS but-

ton (fig 3A-26) provides the means to select 1 of 5 net ac-

• NORMAL

cess delay methods that the IDM will use with the selected

FIRE SUPPORT preset. The presence of multiple mem-

• LIGHT

bers on a single net requires a method of controlling the

transmission opportunities for each member. The net ac-

A HEAVY TRAFFIC LOAD selection places a greater

cess delay selections detect when the net is busy and reg-

loading on a single channel. NORMAL TRAFFIC LOAD

ulate transmission opportunities over the net. Modes in-

should be selected unless FS has instructed otherwise.

clude the following selections:

d. EDC FEC/TDC/SCRAMBLE Buttons. The ER-

• DAPNAD

ROR DETECTION CORRECTION (EDC) On and Off but-

tons provide the means for configuring the error detection

• RNAD

parameters that the IDM will use with the FIRE SUPPORT

protocol for the preset selected. EDC On/Off buttons in-

clude FEC, TDC, and SCRAMBLE.

• PNAD

• FEC (Forward Error Correction) coding provides

• HNAD

IDM Error Detection and Correction (EDC) capa-

bilities to compensate for errors induced during

• VNAD

transmission.

Use or disclosure of this information is subject to the restriction(s) on the title page of this document.

Change 2

3A-35

TM 1-1520-251-10

NOTE

3A.32 PRESET DIR PAGE

When an ENHANCED baud rate (Error Detect

The PRESET DIR page (fig 3A-27) accesses a pre - mis-

Control mode internal to the radio) has been

sion developed database of up to 60 digital/voice PRE-

selected, FEC On should not be used; howev-

SET items. The PRESET DIR page supports manual

er, the NET parameters are determined by the

page searching, KU data searching, the selection of

Fire Support NET administrator.

single PRESET items, and the replacement of COM page

presets with PRESET items. The PRESET DIR page but-

• TDC (Time - Dispersive Coding) bit interleaving

ton is displayed following a DTU load and is accessed via

formats data into TDC blocks. TDC reduces bit

the PRESET DIR button presented on either the COM

errors during the transmission of messages. All

page or SOI page.

Fire Support protocol compliant receivers have

TDC decoder capabilities to translate: FEC with

TDC, or FEC with TDC and SCRAMBLE.

NOTE

The AH- 64D is DC response compliant. En-

able SCRAMBLE only when briefed by the

artillery NET administrator. SCRAMBLE

supports legacy systems that are not yet

JVMF - FS enabled.

• SCRAMBLE (Data scrambling) is required any-

time that a Fire Support NET transmitter element

does not have a DC response capability and there

is the possibility that long strings of ones or zeros

could be transmitted.

e. RETRIES. The RETRIES button (fig 3A-24) pro-

vides the capabiilty to select the number of FS retransmis-

sions the IDM performs (2, 1, or 0) with no acknowledgement

from the subscriber.

f. IDM FS MISMATCH Status Window. The IDM FS

LBA5102A

MISMATCH status window (fig 3A-24) displays the mismatch

status for Fire Support IDM parameters. This status window

Figure

3A-27.

PRESET DIR Page

is only displayed when Fire Support is tuned to one of the ra-

dios and the IDM is reporting one of the parameters is differ-

ent from what was commanded by the DP. Potential Fire

The PRESET DIR page contains the following unique but-

Support mismatch parameters include:

tons:

• FS Baud Rate

• T5

REPLACE button

• L1 - L5

PRESET buttons

• Net Access

• R1 - R5

PRESET buttons

• Traffic Load

• B2

PAGE BACK button

• EDC

• B3

PAGE FORWARD button

• B5

ABORT button (conditional)

The status window represents the current IDM configura-

tion.

• B6

SRCH button

Use or disclosure of this information is subject to the restriction(s) on the title page of this document.

3A-36

Change 4

TM 1-1520-251-10

NOTE

3A.32.2 PRESET Buttons. The PRESET DIR page

button provides access to a premission developed data-

Selecting the PRESET REPLACE location

base containing up to 60 PRESET items. Each of the

9 or 10 with a Longbow or Tacfire PRESET

PRESET items possess identical data type capabilities

item will store the COM and member data,

and capacities as does the COM page presets inclusive of

however, the net-type will be changed to

members. Upon the display of the page, the first valid

voice. Preset 9 and 10 will only digitally sup-

PRESET item will be selected and the corresponding

port Fire Support and Internet protocols,

PRESET item status window (para 3A.32.3 and fig 3A-27)

while presets 1 through 8 may be used with

is displayed along with the PRESET item MEMBER status

any protocol.

window. Each PRESET item button contains two lines of

information, with the first line containing the Unit ID field

3A.32.1 REPLACE Button. The PRESET DIR LOCA-

and the digital protocol fields. The second line contains

TION REPLACE format is displayed when the REPLACE

the Unit Call Sign field. The digital protocol assignment is

button (fig 3A-28) is selected. This display format provides

represented by the presence of either an L (Longbow), T

the means to replace any one of the ten COM page pre-

(TACFIRE), I (Tactical Internet), or F (Fire Support) which

sets with the selected PRESET item. When the selected

indicates the current protocol of the selected PRESET

PRESET item is assigned with a Longbow or Tacfire pro-

Item.

tocol, the REPLACE PRESET location display button

locations 1 through 8 are white while presets 9 through10

3A.32.3 PRESET ITEM Status Window. The PRESET

are green. When the selected PRESET item is assigned

item status window (fig 3A-27) displays the field contents

an Internet or Fire Support protocol, all presets are dis-

of the currently selected PRESET item. The primary radio/

played in white. The selection of any one of the PRESET

mode and frequency/ECCM will be displayed in white.

REPLACE location buttons commands the replacement

Status window data fields includes:

of that locations COM page preset with the selected PRE-

SET items COM, IDM, and member data. Following the

• Unit ID

system’s successful processing of the replace - store op-

eration, the COM page will display showing that the re-

• Call Sign

place was made.

IDM Type and IDM Preset - Net Number

•

• VHF Frequency

• UHF CNV status

• UHF HQ Net number

• UHF Single Channel Frequency

• FM1 CNV status

• FM1 SINC net number

• FM1 Single Channel Frequency

• FM2 CNV status

• FM2 SINC net number

• FM2 CNV status

• HF CNV status

• HF PRE

LBA5103A

• HF ALE

• HF ECCM

Figure

3A-28.

PRESET DIR - REPLACE Button

Selected

• HF SC

Use or disclosure of this information is subject to the restriction(s) on the title page of this document.

Change 4

3A-37

TM 1-1520-251-10

3A.32.4 PRESET ITEM MEMBER Status Win-

The PRESET DIR page with search RESULTS posted

dow. The PRESET item MEMBER status window (fig

has the following unique button:

3A-27) displays the quantity of existing members for the

• B5

ABORT button

selected PRESET item. The status window displays the

PRESET item’s total member count field status as a num-

3A.32.6 SRCH Button. The PRESET ITEM SEARCH

ber of 0 through 15 followed by MEMBERS. PRESET item

data entry button provides the means to search for a spe-

members are not editable from the PRESET DIR page.

cific preset item in the preset directory’s database.

Searching and replacing functionality provides the means

to quickly replace Longbow, Tacfire, Tactical Internet, Fire

3A.32.5 ABORT Button. The ABORT button (fig

Support, and Voice presets. The keyboard label reads

3A-29) provides the means to abort a search during OIP

PRESET SEARCH and the data entry may be all or a por-

or after search is complete. The ABORT button is dis-

tion of either the Unit ID or Call Sign of a preset. PRESET

played when a search is initiated. Aborting a search re-

item search will begin following the selection of KB EN-

stores the PRESET item page list and resets the page

TER key and an ABORT button will display at this time.

number to one.

3A.32.7 SRCH RESULTS Format. The PRESET DI-

RECTORY page posts and displays matched search re-

sults as they occur in a SEARCH RESULTS format. The

RESULTS status window (fig 3A-29) is displayed during a

search to reflect that the PRESET items being displayed

are matches to search data. Posted preset results may be

reviewed and stored while the search continues. The

PRESET list buttons control presentation of search result

pages. If there are 10 or less PRESET item matches

found in a search, then the page buttons will not be dis-

played.

3A.32.8 NO MATCH Status Window. The NO MATCH

status window is displayed when there was no match

found during a preset PRESET DIR database item

search. When called, the NO MATCH status will be dis-

played in white in the location immediately above the

SRCH button.

3A.33 NET PAGE

The NET page displays the preset member data associat-

ed with the selected COM page preset - net, provides edit-

ing for 1 to 15 members for Longbow, Tacfire, Internet,

LBA5104A

Fire Support, and NONE protocols, and provides access

to the MBR DIR page. Additionally, it provides advisory

status windows for the selected net member’s Callsign/

Figure

3A-29.

PRESET DIR Page - Database SRCH

Suffix status and IDM digital ID settings and an abbrevia-

With RESULTS Posted

ted ownship (para 3A.23.15) status window.

Use or disclosure of this information is subject to the restriction(s) on the title page of this document.

3A-38

Change 4

TM 1-1520-251-10

The NET (LONGBOW, TACFIRE, TI, Fire Support and

3A.33.2 MEMBER DEL Button. The MEMBER DEL

NONE) page (fig 3A-30) has the following unique buttons:

button provides the capability to delete the selected mem-

ber. This button is only displayed for a preset with an as-

• T1

SUFFX (Suffix) button

signed IDM net and a valid call sign as displayed in the

• T2

DEL (MEMBER) button

MEMBER CALL SIGN button. Selection of the MEMBER

DEL button will prompt for a YES or NO confirmation to

• T2

URN (Fire Support) button

initiate the deletion. Selecting the YES confirmed button

• T3

TEAM button

deletes the data associated with the selected MEMBER

button and returns the crewmember out of the member

• T4

PRI button

delete confirmation mode. Selecting NO returns the crew-

• T4

IP (Fire Support) button

member out of the member delete confirmation mode.

• T5

C/S button

3A.33.3 MEMBER URN (Fire Support) ID But-

• T6

SUB (Longbow/Tacfire) button

ton. The net MEMBER FS Unit Reference Number ID

• T6

URN (Internet) button

data entry button (fig 3A-31) provides the capability to edit

or create the selected net member’s URN ID. The net

• L1-L5

MEMBER buttons

URN ID button is displayed whenever a Fire Support net

• L6

MBR DIR button

MEMBER button is selected and the the URN maintained

• R1-R5

MEMBER buttons

option button is selected. Each member’s URN ID is

mapped to its respective Internet Protocol (IP) address

• R6

MODEM button

(para 3A.33.6) through the net MEMBER FS IP ID ad-

• B2

PAGE Back button

dress data entry button. When selected, the keyboard la-

• B3

PAGE Forward button

bel will display FS URN ID and will accept an entry of 0

through 16,777,215.

• B5

CLEAR (Tacfire only) button

LBA5106

LBA5105

Figure 3A-31. NET Page - (Fire Support Net

Figure 3A-30. NET Page - (Longbow Team Member

Member Selected, URN Selected Edit Mode)

Selected)

3A.33.4 MEMBER TEAM Button. The TEAM button

3A.33.1 SUFFX Button. The SUFFX button displays

provides the capability of toggling a net member’s team

the SUFFX page (para 3A.33.17).

designation on or off. Selecting the TEAM button assigns

Use or disclosure of this information is subject to the restriction(s) on the title page of this document.

Change 2

3A-39

TM 1-1520-251-10

3A.33.15 MEMBER Status Window. The net MEM-

BER status (fig 3A-30, 3A-31, and 3A-32) is displayed

when a net MEMBER is selected.

LBA5108

LBA5107

Figure 3A-33. SUFFX Page - (Net Member

Selected)

Figure 3A-32. NET Page - (Fire Support Net

Member Selected)

The SUFFX page contains the following unique buttons:

The status window contains 3 fields:

• T4

STORE button

• L1-L6

Suffix buttons

• Unit ID and Net Protocol

• Call Sign

• R1-R6

Suffix buttons

• Suffix Descriptor.

• B2

PAGE Back button

• B3

PAGE Forward button

3A.33.16 MEMBER IDM Status Window. The net

MEMBER IDM status (fig 3A-30, 3A-31, and 3A-32) win-

dow is displayed when a net MEMBER is selected. The

3A.33.18 STORE Button. Selecting the STORE button

status window contains five fields:

provides the capability to store the selected Suffix into a

selected preset net member button location on the NET

• LB (Longbow subscriber ID)

page. Also as part of this selection, a new subscriber call

sign for the NET MEMBER selected is created using the

• TF (Tacfire subscriber ID)

selected Preset’s call sign and the selected Suffix ID. This

• TI (Tactical Internet URN ID)

button is displayed in white.

• FS (Fire Support URN ID)

• XXX.XXX.XXX.XXX (FS IP Address)

3A.33.19 Suffix Buttons. The Suffix buttons are dis-

played on the left and right sides of the SUFFX page.

3A.33.17 SUFFX Page Button. The SUFFX page (fig

3A-33) displays the Suffix data that has been loaded from

the DTC. The SUFFX page provides the capability to

3A.33.20 PAGE Back and PAGE Forward But-

modify members with a suffix.

tons. Allows selection of multiple pages of suffixes.

Use or disclosure of this information is subject to the restriction(s) on the title page of this document.

Change 2

3A-41

TM 1-1520-251-10

3A.34 MBR DIR PAGE

3A.34.1 STORE REPLACE Button. The STORE RE-

PLACE button presents the NET LOCATION STORE

Page format (para 3A.34.11).

The MEMBER DIRECTORY page (fig 3A-34) is capable

of maintaining a 500 member data base (directory), and

provides the capability to page search, auto search, and

3A.34.2 STORE ADD Button. The STORE ADD but-

add or replace preset net members into a digital net. The

ton stores the selected MEMBER (database item) to the

member directory data base is developed during premis-

first vacant NET page MEMBER location (para 3A.34.12).

sion planning and is loaded from the DTC. The MBR DIR

page is accessed via the NET page. Member automatic

3A.34.3 MEMBER Buttons. The MEMBER buttons

search and store functionality provides the operator with

represent the digital members that have been loaded in

the capability to quickly build Longbow, Tacfire, Tactical In-

the Member Directory and are not associated with the SOI

ternet, and Fire Support digital nets.

database. The display ordering of members (i.e., 1

through 500) is determined by how the database was es-

tablished during premission planning. The MEMBER but-

ton format consists of three fields:

• Call sign

• SUFFIX

• URN descriptor’s first 20 characters of up to 64

characters located beneath the callsign

3A.34.4 MEMBER Review Status. Window. The

MEMBER Review status window (fig 3A-34) displays

when a MEMBER button is selected. The status window

displays all the database elements for the selected MEM-

BER button and consists of six lines with 13 data fields.

The MEMBER Review status window contains the follow-

ing unique data fields:

• Callsign and Suffix

• TI URN ID, LB ID, TF ID, TF TM ID, and

LBA5109

TF BCST ID

• FS URN ID, FS IP ID

Figure

3A-34.

MBR DIR page

•

ACCESS###, TOTAL ###, ID###

• URN Descriptor, first 32 characters

The MBR DIR page contains the following unique buttons:

•

URN Descriptor, second 32 characters

• T5

STORE REPLACE button

3A.34.5 PAGE Back and PAGE Forward But-

• T6

STORE ADD button

tons. The PAGE Back and Forward buttons permit the

• L1-L4

MEMBER buttons

manual selection of the member directory pages for locat-

ing members.

• R1-R4

MEMBER buttons

• B2

PAGE BACK button

3A.34.6 ABORT Button. The ABORT member search

• B3

PAGE FORWARD button

button provides the capability to abort a search during an

active database search or, after a search has completed,

• B5

ABORT button (Conditional)

it may be selected to return to the page search format (pa-

• B6

SRCH button (Conditional)

ra 3A.34.7 and 3A.34.8 and fig 3A-35).

Use or disclosure of this information is subject to the restriction(s) on the title page of this document.

3A-42

Change 2

TM 1-1520-251-10

3A.34.7 SRCH Button. The Member Search data entry

3A.34.10 NO MATCH STATUS Window. The NO

button provides the capability to initiate a search for a spe-

MATCH status window displays when there is not a

cific member or a group of members. When the SRCH

search match made in the Member Directory. The status

button is selected, the KU label displays MBR SEARCH

will be displayed in white, replacing the SRCH status bar.

and the data entered may be all or a portion of the Call

Sign, or up to any 8 sequential characters of the 64 char-

3A.34.11 STORE REPLACE Button. The STORE RE-

acter URN Descriptor. During a search, results are posted

PLACE button presents the Net Member location format.

and displayed (fig 3A-35) in a RESULTS format. If there is

All fifteen Net Member locations will display in white with

no match made during the search, then the NO MATCH

an arrow to identify that they are available for storage. The

status window (para. 3A.34.10) is displayed in white just

REPLACE status window (fig 3A-36) is displayed in white

above the SRCH button.

at the top center of the net member location format. The

Member Selected status window displays the selected

Member Directory item’s data that has been selected for

replacement storage. When a Net Member location button

is selected that had contained a preexisting net member,

that member will be replaced with the new member. Fol-

lowing a Net Member location REPLACE selection, the

NET page will display with the preset - net member that

was just stored selected.

LBA5110A

Figure 3A-35. MBR DIR RESULTS Format

3A.34.8 SRCH RESULTS Format. The Member Direc-

LBA5111

tory page posts and displays matched search results as

they occur in a SRCH RESULTS format. The RESULTS

Figure 3A-36. MBR DIR REPLACE Item Location

status window (fig 3A-35) is displayed during a search to

Format

reflect that the Member Directory listings being displayed

are matches to search data.

3A.34.12 STORE ADD Button. The STORE ADD but-

ton stores the selected member to the first open net loca-

3A.34.9 MBR SRCH Status Bar. The member SRCH

tion of the selected preset. When all net locations for a

status bar graphic provides awareness of the overall

preset are filled with members (i.e., 15 locations), the

search progress. There are 25%, 50%, and 75% complete

ADD button will barrier. The Member Store Location Sta-

hatch marks for quick assessment of the searching prog-

tus window displays, in white, when a member was suc-

ress. Posted member results may be reviewed and stored

cessfully added to the preset - net. The status window dis-

while the search continues. Page buttons will not display

plays the available NET member location that the

until the ninth result is posted.

selected Directory Member was stored to.

Use or disclosure of this information is subject to the restriction(s) on the title page of this document.

Change 3

3A-43

TM 1-1520-251-10

3A.35 MSG REC PAGE

• R1-R6

Message Receive buttons

• B2

PAGE Back button

The MSG REC page (fig 3A-37) provides the operator the

capability to manage IDM messages that are received

• B3

PAGE Forward button

within the IDM’s message receive buffer or to manage HF

• B4

ATHS Page button

messages that are received within the HF radio’s receive

buffer. The crew is cued when a message is received by a

NOTE

EUFD advisory, message receive tone (para 2.139, table

2-15) and the message appearing on the MSG REC page.

Storage of an IDM message will overwrite

Additionally, Longbow messages received containing

the selected mission data.

TSD data and JVMF C2 messages will cue the crew by

displaying a RCVD button on the TSD page.

3A.35.1 SOURCE Button. The SOURCE button

toggles between IDM or HF message receive controls and

messages.

CAUTION

Storing a BLOCK 01 COM ALL IDM/SOI file

message will delete all Tactical Internet and

Fire Support data for the current preset-

nets. If this occurs, the COM presets will

have to be reloaded.

3A.35.2 STORE/RVW Button. The STORE/RVW button

provides the capability to store a data message or review

(para 3A.35.9) a FREE TEXT (Longbow or Internet), FIELD

ORDERS (Internet or Fire Support), or INFORMATION RE-

QUEST (Internet or Fire Support) message, or any ATHS

message received via the IDM. The STORE and RVW but-

tons will display after an applicable message has been se-

lected. The STORE button will not display if the selected In-

ternet or Fire Support message was not properly formatted

by the sender. The STORE button stores the data associated

LBA5073

with the selected Message button and then deletes the mes-

sage from the IDM buffer unless the Internet message send-

Figure

3A-37.

MSG REC Page (Source IDM)

er requested a compliance message. When an operator ack-

nowledgement (ACK) is requested by the Internet or Fire

Support message sender, an operator ACK message is

The MSG REC page contains the following unique but-

transmitted at the time that the message is either stored or

tons:

reviewed unless the IDM has been inhibited. If a TACFIRE

• T2

SOURCE button

message is selected for review, then upon activation of the

RVW button the page will automatically switch to the page

• T2

STORE/RVW button

MSG RCVD page of the ATHS TACFIRE. Refer to the ATHS

• T3

LOCATION CURR button (Longbow)

section for more information.

• T3

COMPLY WILL button (JVMF)

3A.35.3 LOCATION CURR / MSN1 / MSN2 Buttons. The

• T4

LOCATION MSN1 button (Longbow)

MSG REC page CURR, MSN1, and MSN2 buttons (fig

• T4

COMPLY HAVE button (JVMF)

3A-38) provide the capability to specify where a Longbow

• T5

LOCATION MSN2 button (Longbow)

message file, or files, will be stored. Selecting the CURR but-

ton will store the selected Longbow message or messages

• T5

COMPLY CAN’T button (JVMF)

to the current (active) locations and displays. Selecting the

• T6

DEL button

MSN1 or MSN2 buttons will store the message, or mes-

• L1-L6

Message Receive buttons

sages, to either MISSION1 or MISSION2 on the DTC.

Use or disclosure of this information is subject to the restriction(s) on the title page of this document.

3A-44

Change 2

TM 1-1520-251-10

LBA5074

LBA5075

Figure 3A-39. Message Buttons (FIELD ORDER

Selected)

3A.35.5 DEL Button. Selecting the DEL button deletes

the IDM message associated with the selected message

button. When a compliance is requested by an Internet or

Fire Support message sender, the DEL button will not be

displayed until either the WILL, HAVE, or CAN’T COM-

PLY button has been selected.

Figure 3A-38. IDM Page

3A.35.6 Message Buttons. There can be up to 12 mes-

sage buttons per page (fig 3A-37) and up to 13 pages. On

the top line, the type of message will be displayed, along with

the protocol the message was received on. If the message is

not valid per the indicated type a “?” will be displayed at the

NOTE

beginning of the second line. If the sender of the message

requested an operator response, the second line, toward the

The LOCATION MSN1 or MSN2 buttons are

beginning, will display the word COMPLY and the message

barriered anytime that a Longbow data mes-

will be displayed white. The priority cue is displayed in the

sage is selected and the mission card is not

middle of the second line if the sender of the message placed

available, corrupt, or busy with a different task.

a higher priority than routine on the message. A message

with the priority cue of priority would display PRI in white, a

priority of immediate would display IMMED in yellow, a priority

of flash would display FLASH in yellow, and a priority of

3A.35.4 COMPLY WILL/HAVE/CAN’T Buttons. The

emergency would display EMERG in yellow. The call sign of

the sender is displayed at the end of the second line. If the

WILL, HAVE, and CAN’T buttons (fig. 3A-39) are dis-

sender is a subscriber to one of the presets, the call sign will

played when the sender of the selected Internet or Fire

be displayed, otherwise a “?” will be displayed. New incoming

Support message requested an operator compliance re-

messages are displayed at the end of the buffer.

sponse, the selected message has been reviewed or

stored, and one of the radios is tuned to either the Fire

3A.35.7 PAGE Back and PAGE Forward Buttons. Al-

lows selection of multiple pages of received IDM messages.

Support or Internet protocols. When one of the WILL,

HAVE, or CAN’T buttons is selected, a message with the

3A.35.8 ATHS Page Button. The ATHS button (fig

corresponding response will be sent back to the sender.

3A-39) displays the ATHS page.

Use or disclosure of this information is subject to the restriction(s) on the title page of this document.

Change 2

3A-45

TM 1-1520-251-10

3A.35.9 RVW Message Window. The RVW message

window (fig 3A-39) allows the crewmembers to review text

based messages (Free Text, Field Orders, and

Information Request messages) received over the IDM.

The status window can display up to 19 lines of 44

characters. When used with the PAGE Back and PAGE

Forward buttons, up to six pages of a message can be

viewed. The MSG REC page contains the following

unique buttons when SOURCE is HF:

• T2

RVW button

• T5

FWD button

• T6

DEL button

• L1-L5

Message Receive buttons

• L6

PP Receive button

• R1-R5

Message Receive buttons

3A.35.10 FWD Button. The FWD button (figs 3A-40

and 3A-41) transmits the HF message associated with the

selected MSG REC HF MSGS button on the current fre-

quency or mode.

LBA - 5077

Figure 3A-41. MSG REC Page (HF RVW Selected)

3A.35.11 DEL Button. Selecting this button deletes the

HF message associated with the selected Message Re-

ceive button. Selection of the DEL button will prompt for a

YES or NO confirmation to initiate the deletion.

3A.35.12 Message Receive Buttons. There can be up

to 10 messages buttons (fig 3A-40). The message will be

displayed with the day and time it was received and the

first six characters from the sender’s call address.

3A.35.13 PP Receive Button. The PP button (fig

3A-42) provides controls to store or delete a present posi-

LBA - 5076

tion report. The PP button is displayed when a present

Figure 3A-40. MSG REC Page (Source HF)

position report is received over the HF radio.

Use or disclosure of this information is subject to the restriction(s) on the title page of this document.

3A-46

Change 2

TM 1-1520-251-10

3A.35.16 DEL Button. Selecting this button deletes the

HF present position report. Selection of the HF PP DEL

button will prompt for a YES or NO confirmation to initiate

the deletion.

3A.36 MSG SEND PAGE

The MSG SEND page (fig 3A-43) provides controls to

send MISSION 1, MISSION 2, or ALL IDM/SOI data files

via the IDM to Longbow protocol team members. It also

provides access to the IDM page which is used to config-

ure the IDM and message parameter defaults. It also pro-

vides access to the CURRENT MISSION page which is

used for sending selected components of the current mis-

sion to team members.

LBA5078

Figure 3A-42. MSG REC Page (HF PP Selected)

3A.35.14 Free Text Message Window. The Free Text

Message Window (fig 3A-41) allows the crewmembers to

review Free Text messages received over the HF radio.

The MSG REC page contains the following unique but-

tons when SOURCE is HF and PP is selected:

• T2

STORE button

• T6

DEL button

3A.35.15 STORE Button. The HF PP STORE button

(fig 3A-42) provides the capability to store a present posi-

LBA5079

tion report received over the HF radio into the control

measures file, location 92.

Figure 3A-43. MSG SEND Page

Use or disclosure of this information is subject to the restriction(s) on the title page of this document.

Change 4

3A-47

TM 1-1520-251-10

The MSG SEND page contains the following unique but-

3A.36.8 SEND Status Window. The SEND status win-

tons:

dow (fig 3A-47) provides a MPD display of the radio, IDM

protocol, and preset - net status that the IDM transmit se-

• T3

IDM button (TI message settings)

lect indicator for that crew station.

• T5

JVMF ACK button

3A.37 CURRENT MISSION PAGE

• T6

TEXT page button

The CURRENT MISSION button displays the CURRENT

• L1

MISSION 1 button

MISSION page (fig 3A-47). The CURRENT MISSION

• L2

MISSION 2 button

page provides the capability to individually select the type

• L3

ALL IDM/SOI buttons

of information to be sent over the IDM using Longbow

(AFAPD) protocol. Selection of the ALL button allows

• R1

CURRENT MISSION button

transmission of all current files. Once an item is selected,

• R6

SEND button

selecting the SEND button will initiate transmission over

the IDM.

3A.36.1 IDM Button. The IDM button displays the IDM-

page (para 3A.26).

3A.36.2 JVMF ACK Button. The JVMF ACK button

displays the JVMF ACK STATUS window.

3A.36.3 MISSION 1 (or 2) Buttons. The MISSION but-

tons provide the capability to transmit the MISSION 1 (or

2) files to selected Longbow protocol team members

upon the selection of the IDM SEND button.

3A.36.4 CURRENT MISSION Button. The CURRENT

MISSION button displays the LONGBOW protocol CUR-

RENT MISSION page.

3A.36.5 SEND Button. The SEND button is displayed

if the IDM is in the operate mode. The EUFD IDM transmit

select indicator is assigned to a compatible IDM protocol

net and a valid team member is in the net. The FREE

TEXT message is compatible with Longbow, Internet, and

Fire Support protocols while all other MSG SEND page

LBA5115A

messages are exclusive to Longbow protocol nets. The

selection of the SEND button will command the system to

Figure

3A-47.

CURRENT MISSION Page

transmit the selected files through the selected channel of

the IDM. The data is only sent to team members.

The CURRENT MISSION page contains the following

unique buttons:

3A.36.6 JVMF ACK STATUS Window. The JVMF

ACK STATUS window can be selectively opened using

• L1

WAYPOINTS button

the JVMF ACK button, and provides detailed status to the

• L2

AREAS button

operator of ACK, NAK, receiving platform operator inten-

• L3

LINES button

tions (e.g., WILCO, CANTCO) for the last JVMF message

• L4

ROUTE (CURRENT) button

sent, accepting JVMF messages issued via HF radio. Sta-

• L5

TGT/THRT button

tus is provided individually for all platforms to which a

• L6

CONTROL MEASURES button

message was sent.

• R2

LASER CODES button

• R6

SEND button

3A.36.7 TEXT Page Button. The TEXT page presents

the MPS TEXT MSG options and the FREE TEXT MSG

• B3

ROUTE button

editing display

• B4

ALL button

Use or disclosure of this information is subject to the restriction(s) on the title page of this document.

3A-48

Change 4

TM 1-1520-251-10

3A.37.1 WAYPOINTS Button. The WAYPOINTS but-

3A.38 CURRENT MISSION - ROUTE SELECTIONS

ton allows sending of the current waypoints file over the

IDM.

The ROUTE button (fig 3A-48) provides the capability to

select various routes for sending over the Longbow IDM

protocol.

3A.37.2 AREAS Button. The AREAS button allows

sending of the current engagement areas file over the

IDM.

3A.37.3 LINES Button. The LINES button allows

sending of the current phase lines file over the IDM.

3A.37.4 TGT/THRT Button. The TGT/THRT button al-

lows sending of the current target and threats file over the

IDM.

3A.37.5 CONTROL MEASURES Button. The CON-

TROL MEASURES button allows sending of the current

control measures file over the IDM.

3A.37.6 LASER CODES Button. The LASER CODES

button allows sending the current laser codes file over the

IDM.

3A.37.7 SEND Button. The SEND button is only dis-

LBA5116A

played if a valid CURRENT MISSION file is selected to be

sent. The selection of the SEND button will command the

Figure

3A-48.

CURRENT MISSION Page (ROUTE

system to transmit the selected files through the selected

Button Selected)

channel of the IDM. The selection of the SEND button will

command the system to transmit the selected files

through the selected LONGBOW protocol channel of the

The ROUTE button provides the following unique buttons:

IDM. The data is only sent to LONGBOW team members.

•

L1-L6

ROUTE buttons

• R2 - R5

ROUTE buttons

3A.37.8 ROUTE Button. The ROUTE button allows

sending of the current route file over the IDM. The ROUTE

• B4

ALL button

button presents all of the current routes files available for

3A.38.1 ROUTE Buttons. The ROUTE buttons allow

sending over the IDM (fig 3A-48).

selection of a single route file to send over the IDM.

3A.37.9 ALL Button. The ALL button allows sending

3A.38.2 ALL Button. The ALL button allows sending

of all current mission files over the IDM.

of all route files over the IDM.

Use or disclosure of this information is subject to the restriction(s) on the title page of this document.

Change 4

3A-49

TM 1-1520-251-10

3A.39 TEXT PAGE

The TEXT page (fig 3A-49 and fig 3A-50) provides the capa-

bility to send a Mission Planning Station (MPS) non editable

text message or create a free text message for transmission

through the IDM using Longbow, Internet, or Fire Support

protocols or through the HF radio’s modem.

LBA5118A

Figure 3A-50. TEXT Page (Source IDM - FREE

TEXT)

3A.39.1 SOURCE Button. The SOURCE button

toggles between IDM or HF free text message controls.

3A.39.2 MPS TEXT Button. The MPS TEXT button dis-

LBA5117A

plays up to 10 non - editable premission planned text mes-

sages that may be selected and sent to any JVMF entity.

3A.39.3 FREE TEXT Button. The FREE TEXT button

Figure 3A-49. TEXT Page (Source IDM - MPS TEXT)

displays the editable FREE TEXT format used to develop

free text messages that may be sent via Longbow

(AFAPD) or JVFM.

The TEXT page contains the following unique buttons

when SOURCE is IDM and FREE TEXT is selected (refer

3A.39.4 IDM FREE TEXT Buttons. Each IDM FREE

to fig 3A-50):

TEXT (1-4) button provides the capability to load four

44-character messages into the system for transmission

by the IDM radio.

• T1

SOURCE button

• T3

MPS TEXT button

3A.39.3 SEND Button. The SEND button transmits the

IDM TEXT message through the selected channel of the

• T4

FREE TEXT button

IDM or through the HF’s modem. With SOURCE to IDM,

• L1-L4

IDM TEXT (1-4) buttons

the data is only sent to team members.

• R6

SEND button

3A.39.4 CLEAR Button. The CLEAR button clears the

• B4

CLEAR button

data contained in the IDM TEXT buttons.

Use or disclosure of this information is subject to the restriction(s) on the title page of this document.

3A-50

Change 4

TM 1-1520-251-10

The TEXT page contains the following unique buttons when

The TEXT page contains the following unique buttons

SOURCE is HF and FREE TEXT is selected (fig 3A-51):

when SOURCE is IDM and MPS TEXT is selected (refer

to fig 3A-49):

• L1-L4

HF TEXT (1-4) buttons

• T1

SOURCE button

• R6

SEND button

• L1-L5

MPS IDM MESSAGE (1-5) buttons

• R1-R5

MPS IDM MESSAGE (6-10) buttons

• B4

CLEAR or ABORT button

• R6

SEND button

3A.40 MPS IDM MESSAGE Buttons. The MPS IDM

MESSAGE buttons provide the capability to review an

MPS pre - planned message and select it for

transmission by the IDM

The TEXT page contains the following unique buttons

when SOURCE is HF and MPS TEXT is selected (refer to

fig 3A-52):

• T1

SOURCE button

• T2

RVW button

• L1-L5

PM (1-5) buttons

• L6

PP button

• R1-R5

PM (6-10) buttons

• R6

SEND button

• B2 - B3

PAGE LEFT/RIGHT buttons

• B4

CLEAR or ABORT button

LBA5491

Figure 3A-51. TEXT Page (Source HF - FREE

TEXT)

3A.39.5 HF TEXT Buttons. Each HF TEXT (1-4) but-

ton provides the capability to load four 44-character mes-

sages into the system for transmission by the HF radio.

3A.39.6 SEND Button. The SEND button transmits the

HF TEXT message through the HF radio’s modem.

3A.39.7 CLEAR/ABORT Buttons. The CLEAR button

LBA5119

clears the data contained in the HF TEXT buttons. The

ABORT button is displayed while the HF TEXT is being

sent, in order to allow the crew to abort the transmission.

Figure 3A-52. TEXT Page (Source HF - MPS TEXT)

Use or disclosure of this information is subject to the restriction(s) on the title page of this document.

Change 4

3A-51