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This set was designed for the UK military and is also known as the International Marine Radio 54 or IMR.54. The IMR.54 receiver is a high class marine communication receiver covering the requirements of a long-wave, medium-wave and short-wave main receiver in all compulsorily equipped ships.

General characteristics

HAM bands
?
Frequency stability
?
Tuning steps
?

Receiver

RX-range
15 kHz - 31 MHz in 10 bands
Modulations
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
Double conversion superheterodyne
IF-frequencies
?
Image rejection
?
Audio output
1 W

Connections

Antenna
-
Impedance
72Ω
Other
-

Electrical

Power requirements
Mains (110-250 V AC)
Current drain RX
82 W
TX
-

Physical

Manufactured
Between 1952 and 195x in Great Britain
Dimensions (w×h×d)
747 × 385 × 451 mm (29.41 × 15.16 × 17.76 in)
Weight
60.90 kg (134.4 lbs)
Form factor
Base Station

Other features

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

Manuals, diagrams and brochures

International Marine Radio IMR54 Instruction Manual PDF - 28.03 MB, submitted by RigReference
IMR54 Alternative service manual PDF - 14.67 MB, submitted by RigReference
IMR54 Circuit Diagram PDF - 2.62 MB, submitted by RigReference
IMR54 Parts List PDF - 14.29 MB, submitted by RigReference
 
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