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HF Receiver
Desktop HF/VHF Receiver
HF Receiver

General

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

Receiver

RX-range 0.54-38.1 MHz in five bands 0.54-32 MHz in four bands 0.535-31.5 (1.610-1.725 gap)
Modulations AM   CW   AM   CW   AM   CW   SSB  
Sensitivity ? ? ?
Selectivity ? ? ?
Filters ? ? ?
Receiver system ? 5 tubes ?
IF-freqs. ? ? ?
Image rejection ? ? ?
Audio output ? ? Requires external speaker

Transmitter

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

Connections

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

Electrical

Power req. Mains Mains (AC or DC) Mains
Current RX ? ? ?
TX - - -

Physical

Manufactured Between 1938 and 19xx in USA Between 1949 and 195x in USA Between 1968 and 1972 in USA
Dimensions ? 330 × 178 × 184 mm
(12.99 × 7.01 × 7.24 in)
464 × 203 × 248 mm
(18.27 × 7.99 × 9.76 in)
Weight ? ? 14.10 kg (31.1 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-S-000038A HALLICRAFTERS-SX-000133