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Marine Shortwave receiver IMR54
Marine Shortwave receiver

General

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

Receiver

RX-range 15 kHz - 31 MHz in 10 bands 130-3750 kHz in 3 bands
Modulations AM   CW   AM  
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 Double conversion superheterodyne Superheterodyne
IF-freqs. ? 127 kHz
Image rejection ? ?
Audio output 1 W 1 W

Transmitter

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

Connections

Antenna - -
Impedance 72Ω 70Ω
Other - -

Electrical

Power req. Mains (110-250 V AC) 12 V DC, 24 V DC optional
Current RX 82 W ?
TX - -

Physical

Manufactured Between 1952 and 195x in Great Britain Between 1950 and 195x in Great Britain
Dimensions 747 × 385 × 451 mm
(29.41 × 15.16 × 17.76 in)
425 × 222 × 254 mm
(16.73 × 8.74 × 10.00 in)
Weight 60.90 kg (134.4 lbs) ?
Form factor Base Station Mobile

Other features

Memories ? ?
Usage Marine / Navy Marine / Navy
Features Automatic volume control ?
Accessories ? ?
MPN EDDYSTONE-000700 EDDYSTONE-000720