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Last modified 2025-09-09

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JRC JSB-20

A picture of JRC JSB-20

SPECIFICATIONS

GENERAL
Type:Professional land mobile HF transceiver
Frequency range: 3-9 MHz
Tuning steps:Channelized
Frequency stability:±50 Hz @ -10 to +50°C (14 to 122°F)
Mode:USB (LSB option)
Channels / memory management: 4 regular
XTAL controlled
Duplex shift / offset:
Power supply:9-16.5 VDC
Current drain / power consumption:RX: 50-200 mA
TX: Max 1.2 A
Antenna impedance / connector:50 ohm / SO-239
Dimensions (W*H*D):220*100*90 mm (8.66*3.94*3.54")
Weight:3 Kg (6.61 lb)
Other features:




RECEIVER SECTION
Receiver system: ? conversion superheterodyne
Sensitivity:0.5 uV (10 dB S/N)
Squelch sensitivity:2.35 KHz (-6 dB)
4.8 KHz (-60 dB)
Selectivity:
Image rejection:
AF output power / speaker:200 mW at 10% distortion / ? ohm
External speaker connector:




TRANSMITTER SECTION
RF output power: Max 10 W (PEP)
Modulation system:
Max FM deviation (Factory set):No FM
Spurious emissions:Better than -40 dB
Microphone impedance / connector:? ohm / ?-pin
Microphone input level:? mV




MISCELLANEOUS
Manufactured:Japan, 19xx-19xx (Discontinued)
Additional info:
Related documents:
Modifications and fixes:
Reviews:
Options / Accessories:
? Tunable telescopic whip