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Desktop Shortwave receiver
Marine Shortwave receiver IMR54

General

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

Receiver

RX-range 0.6-30 MHz in 5 bands 15 kHz - 31 MHz in 10 bands
Modulations CW   AM   CW  
Sensitivity ≥ 2 µV 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 5 kHz
300 Hz with optional crystal filter
Wide, Intermediate, Narrow and Very narrow settings.
500 Hz ... 25 kHz
Filters ? ?
Receiver system Superheterodyne Double conversion superheterodyne
IF-freqs. 450 kHz ?
Image rejection ? ?
Audio output 3 W 1 W

Transmitter

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

Connections

Antenna - -
Impedance 70Ω 72Ω
Other - -

Electrical

Power req. Mains Mains (110-250 V AC)
Current RX 65 W 82 W
TX - -

Physical

Manufactured Between 1946 and 194x in Great Britain Between 1952 and 195x in Great Britain
Dimensions 426 × 222 × 254 mm
(16.77 × 8.74 × 10.00 in)
747 × 385 × 451 mm
(29.41 × 15.16 × 17.76 in)
Weight ? 60.90 kg (134.4 lbs)
Form factor Base Station Base Station

Other features

Memories ? ?
Usage Amateur / Ham radio operators Marine / Navy
Features Noise limiter
S-meter
Automatic volume control
Accessories ? ?
MPN EDDYSTONE-000504 EDDYSTONE-000700