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Desktop Shortwave Transmitter
Desktop Shortwave Transmitter
Desktop Transceiver

General

HAM bands 80m  40m  20m  15m  10m  80m  40m  20m  15m  10m  11m (CB) 
Freq. stability ? ? ?
Tuning steps Continuous ? Channelized

Receiver

RX-range - - 26.965-27.255 MHz
Modulations - - 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 80-10 m
160 m optional
80-10 m
160 m optional
26.965-27.255 MHz
Modulations AM   CW   SSB   AM   CW   SSB   AM  
RF-output 60 W 60 W 2.8 W

Connections

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

Electrical

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

Physical

Manufactured Between 1965 and 1968 Between 1965 and 1968 Between 195x and 196x in USA
Dimensions 171 × 91 × 144 mm
(6.73 × 3.58 × 5.67 in)
? 143 × 178 × 290 mm
(5.63 × 7.01 × 11.42 in)
Weight 21.00 kg (46.3 lbs) ? 5.40 kg (11.9 lbs)
Form factor Base Station Base Station Base Station

Other features

Memories None ? 10 channels in 1 bank(s)
Usage Amateur / Ham radio operators Amateur / Ham radio operators Citizen Band (27Mc)
Features ? ? ?
Accessories ? ? ?
MPN HAMMARLUND-HX-000050 HAMMARLUND-HX-000050A E.F.-JOHNSON-MESSENGER-II