TM 55-1510-215-MTFPROCEDURE TROUBLESHOOTINGREFERENCEg. Microphone switch - Release. Wait for thepostamble to stop.NOTEThe SIG/CIPHER RCV indicator light will flash during receipt of securevoice communications. After receiving a secure communications, waituntil the postamble stops before initiating any transmission.h. Obtain signal quality reports K12 from otherstation and note received signal quality.*17. FM liaison set (AN/ARC-201(V) or AN/ARC-186(V)) - Check asfollows:a. Altitude - 1200 feet above ground level.b. Transmitter-interphone selector (audiocontrol panel) - No. 1 position.c. RADIO MON -1 switch - ON.d. MODE selector (AN/ARC- K13201(V)) - SC or (AN/ARC- 186(V))-TR.e. FUNCTION selector - SQ as K14desired.2-53
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