Switch Settings and Initialization - TB-11-5820-890-10-90003

TB 11-5820-890-10-9

6. Switch Settings and Initialization. The following tables provide the necessary switch settings and

communication parameters for interoperability. Initialize the DMD for communication as shown in Table

6-2. Verify the switch settings for both the radio and the DMD; then establish communication on the net.

NON-ICOM RADIO

ICOM RADIO

SWITCH

SQ ON

FUNCTION

SC or FH

MODE

AD2

DATA

(TSEC/KY-57) ON

COMSEC

N/A

OFF

Table 6-1. SINCGARS Radio Set

XMIT BLOCK:

SINGLE

XMIT RATE:

1200

PREAMBLE:

Table 6-2. DMD AN/PSG-2A

System Troubleshooting Procedures. These steps will assist you in isolating faulty system components

when you have a problem communicating in a net using data transmission. These procedures assume

that the net and secure FH voice communication has been established. if you are unable to communicate

using data transmission, do the following troubleshooting steps in the order provided.

CHECK LOCAL RADIO. Use the data on the PR voice net to determine that the radio net is operating.

CHECK WITH OTHER NET MEMBERS. Do you have data communication with some stations but

not others? The other station may be out of range, temporarily off the air, or has not checked into

the net. If data communication can be established with another station, your system is probably

OK and the problem may be at the distant net station.

CHECK SYSTEM CONFIGURATION. Verify proper cabling, initialization and subscriber parameters,

radio set and DMD switch settings, etc.

NOTIFY MAINTENANCE. If the problem cannot be isolated, notify unit maintenance personnel and

inform your NCS of your communication problem.