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HF Receiver
Government Communication Receiver
HF Transmitter

General

HAM bands ? ? 160m  80m  40m  20m  15m  6m  10m 
Freq. stability ? ? ?
Tuning steps ? ? ?

Receiver

RX-range 0.54-20 MHz in five bands
(0.54-1.16 / 1.16-2.5 / 2.5-5 / 5-10 / 10-20 MHz)
0.2/0.4/0.54-10 MHz -
Modulations AM   CW   AM   CW   -
Sensitivity ? ? ?
Selectivity ? ? ?
Filters ? ? ?
Receiver system ? Single conversion superheterodyne ?
IF-freqs. ? ? ?
Image rejection ? ? ?
Audio output ? ? ?

Transmitter

TX-range - - 10-160 m / 6 m
Modulations - - AM   CW  
RF-output ? ? 25 W

Connections

Antenna Clamps / screws - Proprietary
Impedance 100 Ω 200Ω ?
Other - - -

Electrical

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

Physical

Manufactured Between 1939 and 1945 in USA Between 1937 and 193x in USA Between 1939 and 1945 in USA
Dimensions ? ? ?
Weight 33.00 kg (72.8 lbs) ? ?
Form factor Unknown Base Station Base Station

Other features

Memories ? ? ?
Usage Amateur / Ham radio operators Amateur / Ham radio operators Amateur / Ham radio operators
Features ? ? ?
Accessories ? ? ?
MPN HAMMARLUND-SPR-000210-X HAMMARLUND-SP-000100-"MRM-5" HALLICRAFTERS-HT-000006