Cipher Text Receive or Transmit

1-18. Transmit Mode (cont)

routes the modulated signal to the proper antenna for transmission. The transmitter outputs either 1.5, 5, or 20 watts of

power depending on the model used and various front panel switch settings. Refer to Chapter 2 for these settings

1-19. Cipher Text Receive or Transmit

Cipher text messages, also referred to as encrypted/ decrypted or scrambled" messages, may also be transmitted or

received by the Radio Sets. This type of operation requires additional encryption/decryption equipments such as the KY-

57, KY-58, or KY-65. The Radio Set and the encryptor/decryptor must be connected together by a cable from the

TEST/REMOTE front panel connector on the AN/URC-100 or the X MODE front panel connector on the AN/URC-101

and AN/URC-104 (fig. 1-3). Operation of the radio is exactly the some in the cipher text mode as described in

1-20. Receiver Scanning Mode

In the receiver scanning mode, the front panel switches are preset so that one main receiver circuit frequency and two

guard frequencies are scanned any time power is turned on and the PTT switch is not pressed. Signals entering the

radio through either the UHF or VHF antenna and UHF/VHF switch are applied to the receiver circuits. These circuits

1-20