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HF Receiver
Handheld VHF/UHF Transceiver
Marine Shortwave receiver IMR54

General

HAM bands ? 2m  70cm  ?
Freq. stability ? ± 2.5 p.p.m. ?
Tuning steps ? 25 / 20 / 12.5 kHz ?

Receiver

RX-range 0-32 MHz 400-420 / 450-470 MHz 15 kHz - 31 MHz in 10 bands
Modulations All mode   FM   AM   CW  
Sensitivity ? 0.25 / 0.28 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 ? 55 dB Wide, Intermediate, Narrow and Very narrow settings.
500 Hz ... 25 kHz
Filters ? ? ?
Receiver system ? ? Double conversion superheterodyne
IF-freqs. ? ? ?
Image rejection ? ? ?
Audio output ? 400 mW @ ≤5% 1 W

Transmitter

TX-range - 400-420 / 450-470 MHz -
Modulations - FM   -
RF-output ? 0.5 / 2 W ?

Connections

Antenna - - -
Impedance 50 Ω 50Ω 72Ω
Other - - -

Electrical

Power req. 13.8V DC 3.8V, 1700mAh (Li-ion) Mains (110-250 V AC)
Current RX Max 1 A ? 82 W
TX - ? -

Physical

Manufactured Between 1996 and 19xx Between 201x and 201x in China Between 1952 and 195x in Great Britain
Dimensions 238 × 77 × 191 mm
(9.37 × 3.03 × 7.52 in)
100 × 48 × 27 mm
(3.94 × 1.89 × 1.06 in)
747 × 385 × 451 mm
(29.41 × 15.16 × 17.76 in)
Weight 2.20 kg (4.9 lbs) 146 gr (5.2 oz) 60.90 kg (134.4 lbs)
Form factor Unknown Handheld Base Station

Other features

Memories 100 channels in 1 bank(s) 16 channels in 1 bank(s) ?
Usage Amateur / Ham radio operators Commercial / Land mobile communication Marine / Navy
Features ? Chargeable and Programmable through Mini USB Interface Automatic volume control
Accessories ? ? ?
MPN AOR-AR-007030 HYTERA-TC-000320 EDDYSTONE-000700