IDM (Improved Data Modem)

Question 1

What is the purpose of the IDM?

Answer 1

Provides the capability to pass messages between various platforms using standard message protocol.

AFAPD referred to as Longbow protocol used.

Growth option for VMF.

Question 2

What can the IDM send?

Answer 2

Texts
Points
Tracks
Zones
Targets

Question 3

How many networks can the IDM have?

Answer 3

8 Networks configured in the TP split into:

3 groups with a max of 15 subscribers

Question 4

How is the IDM connected to the TP?

Answer 4

Acts as a remote terminal.
2 out put channels through:
KY100 MTU 1: V/UH1
KY100 MTU 2: V/UH2 OR V/UHF3

Question 5

How are messages transmitted?

Answer 5

Max of 16Kbps

Can be on same channel as voice but voice takes preference.

Question 6

Where is the IDM?

Answer 6

Rear bay, middle shelf, right hand side (next to DAPU)

Question 7

How does the IDM work?

Answer 7

It does not transmit, sends a signal to selected radio.

Sends swell as accepts digital data.

Question 8

How is it powered?

Answer 8

No 2 DC Gen BB.

Question 9

What does the “L” prefix mean?

Answer 9

Longbow.

Question 10

How do the aircrew view info?

Answer 10

IDU >

TOTE (dedicated page)

Question 11

How long does it take for the TP to communicate with the IDM?

Answer 11

Aprrox 18 sec.

Question 12

How are much of the settings loaded into IDM.

Answer 12

Loaded into the TP at mission start, prepared on the CMSS.

Some can be changed on CDNU.

Question 13

What is the default BAUD rate?

Answer 13

16000 (Kpb).