Messenger 124

• Brand: Viking

All the accumulated knowledge of the world's largest, most experienced manufacturer of citizens and industrial 2-way radio was focused in the design of this, the most sophisticated of all 27 MHz base stations. Features generally not found on other transceivers: Advanced dual conversion superheterodyne receiver circuitry. Delta fine tuning ± 3 KHz. Adjustable
microphone gain with modulation adjustment to 100 %. 2 four-way professional meter, measures SWR, output, % modulation and receive signal strength. Crystal filter, 4.3 MHz selectivity. Built-in speech compression. Panel controlled, series-type automatic threshold noise limiter. Built-in tonecontrol.
Produces 4 watts RF output power, 3 watts audio output to internal speaker.
Wired for high impedance, push-to-talk ceramic microphone.
Power source required 13.8 V. at 0.53 A. on standby, 1.3 A. transmit or 117 V. AC 60 Hz at 53 W. maximum. 

In questo link sono elencati 75 modelli, di cui 65 con immagini e 30 con schemi.
Elenco delle radio e altri apparecchi della Johnson Company, E.F.; Waseca, MN