System Troubleshooting Procedures - TB-11-5820-890-10-110005

TB 11-582-890-10-11

7. 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 FH 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 O.K and the problem may be at the distant net station.

CHECK SYSTEM CONFIGURATION. Verify proper cabling, Initialization and subscriber

parameters, radio set and MCS switch settings, etc.

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

and Inform your NCS of your communication problem.

8. Remote Control Operations. The Remote Control Unit (RCU) C-11561 may be used In place of the RT In a

SINCGARS radio system to allow the radio set and antenna to be placed at distances up to 4 km from the local

system. Interoperability between the MCS and the RCU is the same when the MCS Is connected to an RT. Table

8-1 provides the switch settings for the radio set and the RCU for remote control operation.

SWITCH

RCU

RADIO SET

FUNCTION

SQ ON

REM

MODE

SC or FH

N/A

DATA

N/A

COMSEC

OFF

N/A

Table 8-1. RCU Settings for Remote Operation