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
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.
SC or FH
Table 8-1. RCU Settings for Remote Operation