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HF Receiver
Waterproof handheld
Government Communication Receiver

General

HAM bands 80m  40m  20m  15m  10m  70cm  ?
Freq. stability ? ? ?
Tuning steps ? ? ?

Receiver

RX-range 10-80 m Fixed channels in the 70cm band 0.2/0.4/0.54-10 MHz
Modulations AM   CW   SSB   FM   AFSK   AM   CW  
Sensitivity 0.5 µV (10 dB S/N) -8 dB μV (@ 12dB SINAD) ?
Selectivity 5 kHz (-50 dB), 1.8 kHz (-6 dB) ? ?
Filters ? ? ?
Receiver system ? conversion superheterodyne, 8 tubes ? Single conversion superheterodyne
IF-freqs. ? ? ?
Image rejection >50 dB ? ?
Audio output ? 60 mW (@ 4 Ω, 10% distortion) ?

Transmitter

TX-range - Fixed channels in the 70cm band -
Modulations - FM   AFSK   -
RF-output ? 10 mW ?

Connections

Antenna - SMA -
Impedance 50/75 Ω 50Ω 200Ω
Other - - -

Electrical

Power req. Mains Single AA-battery Separate PSU
Current RX ? ? ?
TX - ? -

Physical

Manufactured Between 196x and 19xx in Japan Between 2014 and 20xx in Japan Between 1937 and 193x in USA
Dimensions 330.2 × 152.4 × 260.35 mm
(13.00 × 6.00 × 10.25 in)
57 × 88 × 16.5 mm
(2.24 × 3.46 × 0.65 in)
?
Weight 7.94 kg (17.5 lbs) 95 gr (3.4 oz) ?
Form factor Unknown Handheld Base Station

Other features

Memories ? 29 channels in 1 bank(s) ?
Usage Amateur / Ham radio operators Amateur / Ham radio operators Amateur / Ham radio operators
Features ? Simplex and repeater modes
Waterproof and dust proof according to IP67
?
Accessories ? ? ?
MPN SOMMERKAMP-FR-000050B YAESU-SR-000070 HAMMARLUND-SP-000100-"MRM-5"