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HF/VHF Surveillance Receiver
Desktop Shortwave receiver

General

HAM bands 15m  12m (WARC)  11m (CB)  6m  10m  4m  160m  80m  60m  40m  30m (WARC)  20m  17m (WARC)  15m  12m (WARC)  11m (CB)  10m  2000m 
Freq. stability ? ?
Tuning steps Continuous Continuous

Receiver

RX-range 20-80 MHz 80 kHz - 30 MHz
Modulations AM   FM   N-FM   CW   AM   CW  
Sensitivity AM ca. 0,5 μV
FM ca. 1,2 μV
?
Selectivity 4 / 10 / 50 kHz @ -6 dB ?
Filters ? ?
Receiver system Double conversion superheterodyne Single conversion
IF-freqs. 10 MHz / 455 kHz 575 kHz
Image rejection ? ?
Audio output Requires headphones or external speaker ?

Transmitter

TX-range - -
Modulations - -
RF-output ? ?

Connections

Antenna - -
Impedance 50Ω 50/500Ω
Other - -

Electrical

Power req. Mains (220 V AC) Mains or 12 V DC
Current RX 16 W ?
TX - -

Physical

Manufactured Between 1980 and 198x in USA Between 19xx and 19xx
Dimensions 483 × 90 × 478 mm
(19.02 × 3.54 × 18.82 in)
?
Weight 8.20 kg (18.1 lbs) ?
Form factor Base Station Base Station

Other features

Memories None None
Usage Military communication Military communication
Features ? ?
Accessories DRO-290 Digital Nixie-tube display ?
MPN WATKINS-JOHNSON-WJ-000521A-1 MARCONI-CSR-000005