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HF/VHF Surveillance Receiver
Desktop HF/VHF Receiver
Desktop HF/VHF/UHF Receiver

General

HAM bands 15m  12m (WARC)  11m (CB)  6m  10m  4m  ? ?
Freq. stability ? ? ?
Tuning steps Continuous ? ?

Receiver

RX-range 20-80 MHz 30-90 / 60-300 MHz 2 ~ 20 - 1100 MHz
Modulations AM   FM   N-FM   CW   AM   FM   N-FM   CW   AM   FM   CW   SSB  
Sensitivity AM ca. 0,5 μV
FM ca. 1,2 μV
? ?
Selectivity 4 / 10 / 50 kHz @ -6 dB ? ?
Filters ? ? ?
Receiver system Double conversion superheterodyne ? ?
IF-freqs. 10 MHz / 455 kHz ? ?
Image rejection ? ? ?
Audio output Requires headphones or external speaker ? ?

Transmitter

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

Connections

Antenna - - -
Impedance 50Ω 50Ω 50Ω
Other - - -

Electrical

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

Physical

Manufactured Between 1980 and 198x in USA Between 1980 and 198x in USA Between 19xx and 19xx in USA
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 Base Station

Other features

Memories None ? ?
Usage Military communication Military communication Military communication
Features ? ? ?
Accessories DRO-290 Digital Nixie-tube display ? ?
MPN WATKINS-JOHNSON-WJ-000521A-1 WATKINS-JOHNSON-WJ-000906A-6 WATKINS-JOHNSON-WJ-008617-SERIES