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Desktop ULF/VLF Receiver
Mobile Transceiver

General

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

Receiver

RX-range 15-500 / 500-1500 kHz (2 ranges, 7 bands) 26.965-27.405 MHz
Modulations AM   CW   FSK   -
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 ?

Transmitter

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

Connections

Antenna Proprietary -
Impedance 125Ω 50Ω
Other - -

Electrical

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

Physical

Manufactured Between 1951 and 19xx in USA Between 19xx and 20xx
Dimensions 483 × 267 × 438 mm
(19.02 × 10.51 × 17.24 in)
184 × 57 × 220 mm
(7.24 × 2.24 × 8.66 in)
Weight 37.20 kg (82.1 lbs) including power supply PP-621/URR ?
Form factor Base Station Mobile

Other features

Memories None 40 channels in 1 bank(s)
Usage Amateur / Ham radio operators Citizen Band (27Mc)
Features Operating altitude up to 10,000 feet ?
Accessories ? ?
MPN COLLINS-R-000389/URR COBRA-000029-LTD-CLASSIC