User:VKing/Sandbox

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The AN/PRC-77 is a portable VHF FM manpack radio first introduced in 1968 during the Vietnam War. It served as the primary squad-level radio for US troops up to and including the Gulf War, where it was starting to be phased out by the AN/PRC-119 SINCGARS radio.

Specifications

Frequency Range 30 to 75.95 MHz
Output Power 5 W (in game; in reality varies from 1.5 to 4 watts depending on frequency and set)
Antenna 3 foot (90 cm) steel tape
Default Frequency 30.00 MHz
Frequency Spacing 50 kHz
Range 8 to 10 kilometers, depending on frequency and line of sight.

Operation

Interface

File:Prc 77 interface.jpg
PRC-77 interface.

The Radio Interface is opened using the ACRE 2 Open Radio Interface key (default ALT + CTRL + CAPSLOCK). There are numerous switches detailed to the right.

Mode switch

This is the primary function switch of the radio; it has five settings:

OFF
Turns radio power off. Be warned that the PRC-77 always starts in the OFF position and will be unusable until you turn it on.
ON
Turns radio power on. The radio will now transmit and receive.
Squelch
Like ON, but enables 150 kHz subtone squelch (Not implemented).
Retrans
Enables retrans functionality (Not implemented).
Lite
Momentarily lights up the frequency display (Not implemented).

Volume switch

Sets the receive volume of the radio. Be warned that the volume knob always starts at 0; you have to turn it up in order to hear anything.

Tuning knobs

Two knobs, one for 1 megahertz increments and another for 50 kilohertz (0.05 MHz) increments. Click to increase, right click to decrease until you have selected the right frequency.

Upper/lower frequency band switch

This switch toggles between the radio's 30.00-52.95 MHz range and the 53.00-75.95 MHz range.

Preset buttons

You can save two presets on the PRC-77 by using the two buttons above each tuning knob. Right-click on the button to save the preset, and left-click to recall it.