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Desktop HF/VHF Receiver
HF/VHF Receiver
Desktop Transceiver

General

HAM bands ? ? 11m (CB) 
Freq. stability ? ? ?
Tuning steps ? ? Channelized

Receiver

RX-range 0.538-34 MHz (1.580-1.720 MHz gap) in 4 bands 0.55-35.5 MHz 26.965-27.255 MHz
Modulations AM   CW   AM   CW   SSB   AM  
Sensitivity ? ? 0.4 µV for 10 dB S/N
Selectivity ? ? 7 kHz @ -6 dB
21 kHz @ -60 dB
Filters ? ? ?
Receiver system ? ? Crystal controlled single conversion superheterodyne
IF-freqs. ? ? 455 kHz
Image rejection ? ? ?
Audio output ? ? 3 W

Transmitter

TX-range - - 26.965-27.255 MHz
Modulations - - AM  
RF-output ? ? 2.8 W

Connections

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

Electrical

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

Physical

Manufactured Between 1951 and 1954 Between 1955 and 1957 in USA Between 195x and 196x in USA
Dimensions 470 × 229 × 241 mm
(18.50 × 9.02 × 9.49 in)
457 × 454 × 394 mm
(17.99 × 17.87 × 15.51 in)
143 × 178 × 290 mm
(5.63 × 7.01 × 11.42 in)
Weight 18.60 kg (41.0 lbs) 29.40 kg (64.9 lbs) 5.40 kg (11.9 lbs)
Form factor Base Station Unknown Base Station

Other features

Memories ? ? 10 channels in 1 bank(s)
Usage Amateur / Ham radio operators Amateur / Ham radio operators Citizen Band (27Mc)
Features ? ? ?
Accessories ? ? ?
MPN HALLICRAFTERS-S-000076 HAMMARLUND-PRO-000310 E.F.-JOHNSON-MESSENGER-II