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Mobile Transceiver
Desktop ULF/VLF Receiver
Communications receiver

General

HAM bands 11m (CB)  2000m  6m 
Freq. stability ? ? ≤ 0.5 %
Tuning steps Channelized Continuous ?

Receiver

RX-range 26.965-27.405 MHz 15-500 / 500-1500 kHz (2 ranges, 7 bands) 620-205 m / 1.4-3.8 / 3.7-10.6 / 10.5-30.6 MHz
Modulations AM   FM   AM   CW   FSK   AM   CW  
Sensitivity ? 6 µV ?
Selectivity ? ? ?
Filters ? 0.1 / 1 / 2 / 4 / 8 kHz ?
Receiver system ? Double conversion cuperheterodyne, including circuit arragement for cancelling drift of crystal oscillator (34 tubes) ?
IF-freqs. ? ? ?
Image rejection ? ? ?
Audio output ? 500 mW unbalanced, 10 mW balanced External speaker or headphones required

Transmitter

TX-range 26.965-27.405 MHz - -
Modulations AM   FM   - -
RF-output 4 W ? ?

Connections

Antenna SO-239 Proprietary Clamps / screws
Impedance 50Ω 125Ω 70/80Ω
Other - - -

Electrical

Power req. ? Mains (115/230 V AC) Mains (100-125 or 200-250 V AC)
Current RX ? 250 W with oven on, 150 W when oven off 45 W
TX ? - -

Physical

Manufactured Between 19xx and 19xx Between 1951 and 19xx in USA Between 1950 and 195x in Great Britain
Dimensions 174 × 52 × 211 mm
(6.85 × 2.05 × 8.31 in)
483 × 267 × 438 mm
(19.02 × 10.51 × 17.24 in)
?
Weight ? 37.20 kg (82.1 lbs) including power supply PP-621/URR ?
Form factor Mobile Base Station Base Station

Other features

Memories 40 channels in 1 bank(s) None ?
Usage Citizen Band (27Mc) Amateur / Ham radio operators Military communication
Features ? Operating altitude up to 10,000 feet BFO
S-meter socket
Accessories ? ? ?
MPN PRESIDENT-JFK COLLINS-R-000389/URR EDDYSTONE-000740