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Desktop Shortwave receiver
Desktop VHF/UHF Scanner / receiver
Marine Shortwave receiver IMR54

General

HAM bands ? 6m  2m  70cm  ?
Freq. stability 10 ppm per °C (2 ppm per °C at 2182 kHz) ? ?
Tuning steps ? 5 / 12.5 / 25 kHz ?

Receiver

RX-range 0.3-0.55 / 1.5-30 MHz in 5 bands + 2182 kHz 30-54 / 108-136 / 138-174 / 380-512 MHz (USA)
68-88 / 108-136 / 138-174 / 380-512 MHz (EU)
15 kHz - 31 MHz in 10 bands
Modulations AM   CW   SSB   AM   FM   AM   CW  
Sensitivity 300-550 kHz
15 µV for 15 dB S/N

1.5-30 MHz
5 µV for 15 dB S/N
? 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 7 kHz (-6 dB)
30 kHz (-40 dB)
? Wide, Intermediate, Narrow and Very narrow settings.
500 Hz ... 25 kHz
Filters ? ? ?
Receiver system Single conversion ? Double conversion superheterodyne
IF-freqs. 720 kHz ? ?
Image rejection 85 dB (65 dB for 0.3-0.55 MHz) ? ?
Audio output 1 W @ 10% THD ? 1 W

Transmitter

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

Connections

Antenna SO-239 F-type -
Impedance 50 Ω 50Ω 72Ω
Other - - -

Electrical

Power req. 12 or 24V DC Mains Mains (110-250 V AC)
Current RX Max 250 mA @ 13.8 VDC 17W 82 W
TX - - -

Physical

Manufactured Between 1970 and 197x in Great Britain Between 198x and 198x in Japan Between 1952 and 195x in Great Britain
Dimensions 317 × 162 × 203 mm
(12.48 × 6.38 × 7.99 in)
270 × 67 × 190 mm
(10.63 × 2.64 × 7.48 in)
747 × 385 × 451 mm
(29.41 × 15.16 × 17.76 in)
Weight 6.30 kg (13.9 lbs) ? 60.90 kg (134.4 lbs)
Form factor Base Station Base Station Base Station

Other features

Memories ? 20 channels in 1 bank(s) @ 10 channels/second ?
Usage Marine / Navy Amateur / Ham radio operators Marine / Navy
Features ? 1 Limit search memory
Direct entry system
Automatic volume control
Accessories ? ? ?
MPN EDDYSTONE-EC000010A2 RADIOSHACK-REALISTIC-PRO-002010 EDDYSTONE-000700