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Last modified 2021-03-23

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Icom IC-31

A picture of Icom IC-31

SPECIFICATIONS

GENERAL
Type:Amateur UHF transceiver
Frequency range:TX: 430-440 MHz (Japan domestic market)
RX: 430-440 MHz
Tuning steps:Channelized (External VFO option)
Frequency stability:0.001% @ -10 to +60C (14 to 140F)
Mode:FM
Channels/memory management:26 regular
Two XTALs per channel
Repeater shift/offset:
Power supply:Mains: 100 / 117 / 200 / 220 / 240 VAC
or 13.5 VDC 15%
Current drain/power consumption:RX: 350 to 450 mA
TX: 1.3 to 2.7 A
Antenna impedance/connector:50 ohm / ?
Dimensions (W*H*D):230*111*260 mm (9.06*4.37*10.02")
Weight:7.2 Kg (15.87 lb)
Other features:SWR-meter.




RECEIVER SECTION
Receiver system:Double conversion superheterodyne
1st IF: 10.69 MHz
2nd IF: 455 KHz
Sensitivity:0.63 uV (20 dB quieting)
Selectivity:24 KHz (-6 dB)
46 KHz (-60 dB)
Image rejection:60 dB
AF output power/speaker:1.5 W at ?% distortion / 8 ohm
External speaker connector:3.5 mm, 4-8 ohm




TRANSMITTER SECTION
RF output power: 0.5 to 10 W
Modulation system:
FM deviation:12 KHz
Spurious emissions:Less than -60 dB
Microphone impedance/connector:500 ohm / 3-pin (Metal locking ring connector)
Microphone input sensitivity:? mV




MISCELLANEOUS
Manufactured:Japan, 197x-197x (Discontinued)
Additional info:
Related documents:
Modifications and fixes:
Reviews:
Options/Accessories:
? External digital VFO