Section III. TECHNICAL PRINCIPLES OF OPERATION

Section III.

TECHNICAL PRINCIPLES OF

OPERATION

Subject

Para.

Page

System Description ................................................................................................................ 1-14

General Operating Features ................................................................................................... 1-15

Frequency Selection .............................................................................................................. 1-16

Receive Mode ........................................................................................................................ 1-17

Transmit Mode ....................................................................................................................... 1-18

Cipher Text Receive or Transmit............................................................................................ 1-19

Receiver Scanning Mode ....................................................................................................... 1-20

Beacon Mode ......................................................................................................................... 1-21

Relay Mode............................................................................................................................ 1-22

1-14. System Description

This section contains an operator-level functional description of the Radio Set. Basic items used in operation are the

handset, front panel controls and indicators on the receiver/transmitter, VHF and UHF antennas, and the battery pack

power supply. A block diagram of the Radio Set is shown in Figure 1-2. Figure 1-3 is an interconnection diagram

showing how the handset, battery power supply and antennas are connected to the Radio Set when the equipment is

ready for use.

1-13