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Desktop HF/VHF Transmitter
Desktop HF/VHF Receiver
Desktop Shortwave receiver

General

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

Receiver

RX-range - 0.54-40 MHz 1.7-4.5 / 4.5-12.6 / 12.6-32 MHz
Modulations - AM   CW   AM   CW  
Sensitivity ? ? ≤ 2 µV
Selectivity ? ? 10 kHz @ -25 dB without crystal filter
400 Hz with crystal filter
Filters ? ? Optional 400 Hz crystal filter
Receiver system ? Single conversion Double conversion superheterodyne
IF-freqs. ? 455 kHz 1st: 1600 kHz
2nd: 450 kz
Image rejection ? ? 45 / 60 / 90 dB
Audio output ? 1.5 W, external speaker required 3 W

Transmitter

TX-range 10-80m / 6m / 2m - -
Modulations CW   - -
RF-output 50 W (input) ? ?

Connections

Antenna Clamps / screws - Clamps / screws
Impedance 50/500 Ω 50/75Ω 400Ω
Other - - -

Electrical

Power req. Mains 105-130V AC Mains (110 / 220 V AC)
Current RX - ? 65 W
TX ? - -

Physical

Manufactured Between 194x and 194x in USA Between 1957 and 1960 in USA Between 1947 and 194x in Great Britain
Dimensions 203 × 305 × 203 mm
(7.99 × 12.01 × 7.99 in)
425 × 255 × 275 mm
(16.73 × 10.04 × 10.83 in)
425 × 222 × 254 mm
(16.73 × 8.74 × 10.00 in)
Weight 8.20 kg (18.1 lbs) ? 14.97 kg (33.0 lbs)
Form factor Base Station Base Station Base Station

Other features

Memories ? None ?
Usage Amateur / Ham radio operators Amateur / Ham radio operators Amateur / Ham radio operators
Features ? ? BFO
Noise limiter
AVC
Standby switch
Accessories ? ? ?
MPN HARVEY-WELLS-TBS-000050B-(BANDMASTER-JUNIOR) NATIONAL-COMPANY-NC-000188 EDDYSTONE-000640