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VHF/UHF Scanner / receiver
Mobile VHF Transceiver
Marine Shortwave receiver IMR54

General

HAM bands 2m  70cm  2m  ?
Freq. stability ? ? ?
Tuning steps 12.5 kHz ? ?

Receiver

RX-range 60-89 / 108-138 / 140-179 / 380-519 MHz 144-146 MHz (Europe)
144-148 MHz (USA)
RX: 118-174 MHz
15 kHz - 31 MHz in 10 bands
Modulations AM   FM   AM   FM   AM   CW  
Sensitivity FM VHF: 0.4 µV (12 dB SINAD)
FM UHF: 0.8 µV (12 dB SINAD)
0.18 µV (12 dB SINAD) 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 +/- 25 kHz (-60 dB) 15 kHz (-6 dB), 30 kHz (-60 dB) Wide, Intermediate, Narrow and Very narrow settings.
500 Hz ... 25 kHz
Filters ? ? ?
Receiver system Double-conversion superheterodyne ? Double conversion superheterodyne
IF-freqs. 1st: 10.7 MHz
2nd: 455 KHz - Ceramic filter: Kyocera F455R 15A
? ?
Image rejection ? >60 dB ?
Audio output ? ? 1 W

Transmitter

TX-range - 144-146 MHz (Europe)
144-148 MHz (USA)
RX: 118-174 MHz
-
Modulations - FM   -
RF-output ? High: 50 W, Medium: 10 W, Low: 5 W ?

Connections

Antenna TV-antenne + Built-in telescopic SO-239 -
Impedance 50/75Ω 50 Ω 72Ω
Other - - -

Electrical

Power req. 13.2 V DC or mains + 2 × R6/AA for memory backup 13.8V DC +/- 15% Mains (110-250 V AC)
Current RX ? 0.8-1 A 82 W
TX - Max 10.5 A -

Physical

Manufactured Between 198x and 198x in Japan Between 1995 and 1998 in Japan Between 1952 and 195x in Great Britain
Dimensions 270 × 95 × 230 mm
(10.63 × 3.74 × 9.06 in)
? 747 × 385 × 451 mm
(29.41 × 15.16 × 17.76 in)
Weight 3.10 kg (6.8 lbs) 1.20 kg (2.6 lbs) 60.90 kg (134.4 lbs)
Form factor Base Station Mobile Base Station

Other features

Memories 70 channels in 1 bank(s) @ 10 channels/second 60 channels in 1 bank(s) ?
Usage Amateur / Ham radio operators Amateur / Ham radio operators Marine / Navy
Features Built-in clock
LED display
CTCSS encoder (CTCSS decoder option) Automatic volume control
Accessories ? ? ?
MPN DLS-000070 ICOM-IC-002000H EDDYSTONE-000700