OPERATOR'S CONTROLS AND INDICATORS. The radio set is now assembled. Now you will learn
the controls and indicators on the radio set, their functions, and how to use them.
a. The AN/PRC-104 controls are located on the front panels of the receiver/exciter and
amplifier/coupler. The exception to this is the audible indicators. These are heard in the handset. The controls
and indicators that are on the front panels are identified and described in Table 3, and the locations are shown in
Table 3. AN/PRC-104 controls and indicators.