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HF/VHF Receiver
Marine Shortwave receiver IMR54

General

HAM bands ? ?
Freq. stability ? ?
Tuning steps ? ?

Receiver

RX-range 0.54-110 MHz in six bands 15 kHz - 31 MHz in 10 bands
Modulations AM   FM   CW   AM   CW  
Sensitivity ? 15-160 kHz: 4-20 µV (10 dB S/N)
160-1500 kHz: 6-10 µV (10 dB S/N)
1.5-4 MHz: 1.5-3 µV (10 dB S/N)
4-10 MHz: 2-6 µV (10 dB S/N)
10-31 MHz: 2-10 µV (10 dB S/N)
Selectivity ? Wide, Intermediate, Narrow and Very narrow settings.
500 Hz ... 25 kHz
Filters ? ?
Receiver system 15 tubes Double conversion superheterodyne
IF-freqs. ? ?
Image rejection ? ?
Audio output ? 1 W

Transmitter

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

Connections

Antenna - -
Impedance ? 72Ω
Other - -

Electrical

Power req. Mains Mains (110-250 V AC)
Current RX ? 82 W
TX - -

Physical

Manufactured Between 194x and 19xx Between 1952 and 195x in Great Britain
Dimensions ? 747 × 385 × 451 mm
(29.41 × 15.16 × 17.76 in)
Weight ? 60.90 kg (134.4 lbs)
Form factor Unknown Base Station

Other features

Memories ? ?
Usage Amateur / Ham radio operators Marine / Navy
Features ? Automatic volume control
Accessories ? ?
MPN HALLICRAFTERS-SX-000042 EDDYSTONE-000700