Secured Communications

c. Secured Communications. The radios will operate with KY-56, KY-58, or KY-65 secured communications

links. However, all secured equipment and cryptographic keys must be the same. Additional interconnection

cables and operating procedures are required that are not part of the Radio Set or described in this manual.

d. Non-Line-Of-Sight Communications. The radios may be configured for relay or retransmit to extend the

range, when obstacles are in the line of sight, or to translate frequencies to allow communications with radios

operating on two different frequencies. When this configuration is used, additional cables are required to connect

two units together that are not described in this manual. When satellite relays are used, the AN/URC-101 or

AN/URC-104 and different antennas and cables are required. The units must be operating on specific frequency

channels and with FM modulation. Also, the receive frequency must be stored in channel 1 and the transmit

frequency in channel 2, as the satellite receives and transmits on different frequencies.

Additional information and equipment are required if the Radio Sets are installed in an airborne or vehicular mount or

where the Remote Control Unit (RCU) is removed from the front panel and located away from the Radio Set.

Instructions will be given to you on how to set up or operate in these configurations when required.

2-3