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HF Receiver
Desktop HF/VHF Receiver
Desktop Shortwave receiver

General

HAM bands 160m  80m  40m  20m  10m  ? 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 0.54-38.1 MHz in five bands 0.538-34 MHz in four bands 14-21 KHz / 0.085-30.3 MHz
Modulations AM   CW   AM   CW   AM   CW   SSB  
Sensitivity ? ? ?
Selectivity ? ? ?
Filters ? Crystal ?
Receiver system ? 8 tubes 19 tubes
IF-freqs. ? ? ?
Image rejection ? ? ?
Audio output ? ? ?

Transmitter

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

Connections

Antenna - - -
Impedance ? 52/600 Ω 60Ω
Other - - -

Electrical

Power req. Mains Mains Mains
Current RX ? ? ?
TX - - -

Physical

Manufactured Between 1938 and 19xx in USA Between 1955 and 1958 Between 196x and 196x in Germany
Dimensions ? 476 × 229 × 273 mm
(18.74 × 9.02 × 10.75 in)
550 × 350 × 380 mm
(21.65 × 13.78 × 14.96 in)
Weight ? 13.00 kg (28.7 lbs) 35.00 kg (77.2 lbs)
Form factor Unknown Base Station Base Station

Other features

Memories None ? None
Usage Amateur / Ham radio operators Amateur / Ham radio operators Amateur / Ham radio operators
Features Separate speaker. S-meter option ? ?
Accessories ? ? ?
MPN HALLICRAFTERS-S-000018-SKY-CHALLENGER-II HALLICRAFTERS-SX-000099 SIEMENS-000745-E310