1792 VHF Radio
User's Manual
10
3. OPERATING INSTRUCTIONS
3.1
SWITCHES, CONTROLS, AND INDICATORS
Figure 7 shows the switches, controls, and indicators on the front panel of the VHF radio.
Figure 7. VHF Radio Front Panel Controls
Table 3 provides a functional description of each of the VHF radio switches, controls, and indicators.
Table 3. Description of VHF Radio Switches, Controls, and Indicators
SWITCHES
CONTROLS &
INDICATORS
FUNCTIONAL DESCRIPTION
POWER ON/OFF
SWITCH
A two-position toggle switch controls the application of the power
supply to the VHF radio.
Position 1, toggle UP, the VHF radio is switched ON.
Position 0, toggle DOWN, the VHF radio is switched OFF.
POWER ON LED
INDICATOR
A green LED is ON when the POWER ON/OFF switch is set to
Position 1, and power is applied to the VHF radio.
FUSE
A 5 A fuse which protects the power supply line.
As part of reverse polarity protection, the fuse will “blow” if the
polarity of the supply line is reversed.
FUSE BLOWN
RED LED
INDICATOR
A red LED goes ON when the 5 A fuse is “blown” while power is
applied to the VHF radio.
