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HF/VHF Surveillance Receiver
Desktop Shortwave receiver
Portable Shortwave Linear Amplifier

General

HAM bands 15m  12m (WARC)  11m (CB)  6m  10m  4m  ? 40m  15m  6m 
Freq. stability ? ? ?
Tuning steps Continuous ? ?

Receiver

RX-range 20-80 MHz 0.05-30 MHz ?
Modulations AM   FM   N-FM   CW   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 - - 40 / 15 / 6 m
Modulations - - FM   CW   SSB  
RF-output ? ? 10 W @ 3 W (40/15m) / 6 W (6m) input

Connections

Antenna - - SO-239
Impedance 50Ω 50Ω 50Ω
Other - - -

Electrical

Power req. Mains (220 V AC) Mains 13.8 V DC
Current RX 16 W ? 3 A max.
TX - - ?

Physical

Manufactured Between 1980 and 198x in USA Between 19xx and 19xx in USA Between 19xx and 19xx
Dimensions 483 × 90 × 478 mm
(19.02 × 3.54 × 18.82 in)
? 105 × 35 × 192 mm
(4.13 × 1.38 × 7.56 in)
Weight 8.20 kg (18.1 lbs) ? 800 gr (1.8 lbs)
Form factor Base Station Base Station Portable

Other features

Memories None ? ?
Usage Military communication Military communication Amateur / Ham radio operators
Features ? ? ?
Accessories DRO-290 Digital Nixie-tube display ? ?
MPN WATKINS-JOHNSON-WJ-000521A-1 WATKINS-JOHNSON-WJ-008888 TOKYO-HY-POWER-HL-000710