QRC-222 - COVERT RADIO

SECOND SECTION LEFT - Transceiver and transmatch
The second section holds the H.F. Transceiver and beneth it a transmatch

LEFT TOP - The transceiver unit is unique it has no nomenclature plate or serial number just a dymo label tape to give a clue to its origins. It does have paper a label giving an inspection date of 27 Aug. 1965

Top Panel -- (From top to bottom - left to right.)

Audio gain, RF gain

Tuning indicator -The frequency range is 2MHz - 20 MHz in 4 bands

1) 2.0 - 3.5 MHz 2) 3.5 - 6.0 MHz 3) 6.0 - 11.0 MHz 4) 11.0 - 20.0 MHz

Calibration adjust knob - mechanical moves the indicator line back and forth.

5 position mode switch CW, XTAL AM, CW, VFO AM,CAL

Xtal freq adjust, Receive Xtal socket, Receive Tuning knob

Dimmer pot - to dim the lamp (while peaking the transmitter power output) - this is a crude form of power meter.

Incandescent lamp - Illumination controlled by above pot.

Front Panel -- (From top to bottom - left to right.)

Socket for transmitter coil/crystal plug-in module

Socket for morse key or burst encoder

Power input socket

4 push to insert connectors - push buttons are on the right side of the unit.

Top to bottom -- 1) Antenna 2) Ground 3) Ground 4) Phone

Right side -- (From top to bottom - left to right.)

The 4 push buttons stated above

3 position rotory switch - Receive, off, Transmit

4 position rotory switch - frequency plan same as tuning indicator above.

LEFT BOTTOM - TRANSMATCH

A simple low power 11 tap inductor/variable cap transmatch with tuning lamp.