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Desktop ULF/VLF Receiver
2 meter transceiver

General

HAM bands 2000m  2m 
Freq. stability ? ?
Tuning steps Continuous ?

Receiver

RX-range 15-500 / 500-1500 kHz (2 ranges, 7 bands) 144-148 MHz
Modulations AM   CW   FSK   FM  
Sensitivity 6 µV 0.35 µV
Selectivity ? 16 kHz @ -6 dB
32 kHz @ -50 dB
Filters 0.1 / 1 / 2 / 4 / 8 kHz ?
Receiver system Double conversion cuperheterodyne, including circuit arragement for cancelling drift of crystal oscillator (34 tubes) Double conversion superheterodyne
IF-freqs. ? 10.7 MHz / 455 kHz
Image rejection ? ?
Audio output 500 mW unbalanced, 10 mW balanced ?

Transmitter

TX-range - 144-148 MHz
Modulations - FM  
RF-output ? 15 W

Connections

Antenna Proprietary -
Impedance 125Ω 50 Ω
Other - -

Electrical

Power req. Mains (115/230 V AC) 13.6 V DC
Current RX 250 W with oven on, 150 W when oven off 180-800 mA
TX - 2.9 A

Physical

Manufactured Between 1951 and 19xx in USA Between 197x and 197x
Dimensions 483 × 267 × 438 mm
(19.02 × 10.51 × 17.24 in)
64 × 140 × 190 mm
(2.52 × 5.51 × 7.48 in)
Weight 37.20 kg (82.1 lbs) including power supply PP-621/URR ?
Form factor Base Station Mobile

Other features

Memories None 12 channels in 1 bank(s)
Usage Amateur / Ham radio operators Amateur / Ham radio operators
Features Operating altitude up to 10,000 feet ?
Accessories ? ?
MPN COLLINS-R-000389/URR REGENCY-HR-000002B