TB 11-5820-890-10-8
System Troubleshooting Procedures. These steps will assist you in isolating faulty system components
7.
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.
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CHECK WITH OTHER NET MEMBERS. Do you have data communication with some stations but
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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.
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CHECK SYSTEM CONFIGURATION. Verify proper cabling, initialization and subscriber parameters,
radio set and BCS switch settings, etc.
NOTIFY MAINTENANCE. If the problem cannot be isolated, notify unit maintenance personnel and
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inform your NCS of your communication problem.
Remote Control Operations. The Remote Control Unit (RCU) C-11561 may be used in place of the RT
8.
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 BCS and the RCU is the same when the BCS 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
TF
N/A
COMSEC
CT
PT
*
OFF
N/A
Table 8-1. RCU Settings for Remote Operation