RETRANSMIT OPERATION. - TM-11-5820-670-120020

TM 11-5820-670-12

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RETRANSMIT OPERATION.

During retransmit operations, two radio sets (stations 1 and 2) beyond normal communications range

perform transmit/receive (T/R) operations using an unattended two-way relay station. The relay

station is made up of two radio sets in retransmit (RETRAN) mode coupled together. The radio sets

coupled together for the relay station must be set at different frequencies, but each matching the

related station 1 and 2 radio set frequencies. The first radio set of the relay station receiving a signal

from either station 1 or 2, automatically sends the signal to the second radio set which relays the

signal to the opposite station.

NOTE

To operate satisfactorily, the two radio sets of the two-way relay station must be tuned to

frequencies at least 3 MHz apart. When they are spaced greater than 8 feet apart, the

frequency spacing may be decreased.

Transmitter power output should be selected, 1 watt or 10 watts, depending upon

distance between relay station radio sets.

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