RXMT Procedures (cont)

TM 11-5820-890-10-8

FH TO SC PROCEDURE

The procedures for FH net to SC net RXMT communications are the

same except that RADIO-D uses RADIO-B's SC frequency and may

have to be placed in PT mode if the RT- 1523 version of the SINCGARS

radio is used.

SC TO SC PROCEDURE

The procedures for SC net to SC net RXMT communications are the

same except that both RADIO-C and RADIO-D use SC frequencies,

and both RXMT radios may have to be placed in PT mode if the

RT-1523 version of the SINCGARS radio is used.

SC DISADVANTAGE

Whenever SC transmissions are required, there is the possibility that

the enemy can locate the RXMT site by using direction finding

techniques. In operational situations where the enemy IS believed to

have direction finding capabilities, an RXMT station should displace as

frequently as necessary.

EDM RXMT

Operating in the EDM mode, any rate, a SlP/ASlP RXMT station will

pass all EDM, SDM, and voice traffic. Both RXMT SlP/ASlP radios must

be set to the EDM data rate being used by the operational net. When

passing RS-232 traffic, the equivalent EDM data rate must be set in

both RXMT radios.

MIXED MODE

Mixed mode (SC to FH, and FH to SC) cannot be used in the EDM

mode. This is not a limitation because nets having SC only do not have

EDM capabilities. When mixed mode RXMT communications are

required, the solution is to use an SDM mode.

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