TM 1-1680-359-10
CHAPTER 2
OPERATING INSTRUCTIONS
Section I. DESCRIPTION AND USE OF
OPERATOR'S CONTROLS AND INDICATORS
2-1. CONTROLS AND INDICATORS. The only controls and indicators are on the radio set, AN/PRC-90.
Control or
Key
Indicator
Function
1
Function
Selects transceiver operating
Switch
mode and turns radio off.
(four-
position
rotary
switch)
2-1
