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Last modified 2024-03-22

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Icom IC-275H

A picture of Icom IC-275H
Later version with Data level instead of PBT

SPECIFICATIONS

GENERAL
Type:Amateur VHF transceiver
Frequency range: Europe
TX: 144-146 MHz
RX: 138-174 MHz
USA
TX: 140.1-150 MHz
RX: 138-174 MHz
Australia
TX: 144-148 MHz
RX: 138-174 MHz

(The wide RX frequency range may require modification)
Tuning steps:10 Hz, 1 / 2.5 / 5 / 10 KHz
Frequency stability:5 ppm @ -10 to +60C (14 to 140F)
Mode:FM / SSB / CW
Channels / memory management: 99 regular
1 call
2 scan edge
RAM storage with lithium battery backup
Repeater shift / offset:0-? MHz (600 KHz default)
Power supply:13.8 VDC
Current drain/power consumption:RX: 0.9 to 1 A
TX: Max 20 A
Antenna impedance / connector:50 ohm / SO-239
Dimensions (W*H*D):241*95*239 mm (9.5*3.7*9.4")
Weight:6 Kg (13.2 lb)
Other features:CI-V computer control.




RECEIVER SECTION
Receiver system: Double conversion superheterodyne
1st IF: 10.75 MHz (FM/SSB), 10.7491 (CW)
2nd IF: 455 KHz
Sensitivity: FM: 0.18 uV (12 dB SINAD)
SSB/CW: 0.1 uV (10 dB S/N)
Selectivity: FM
15 KHz (-6 dB)
30 KHz (-60 dB)
SSB/CW
2.2 KHz (-6 dB)
4.2 KHz (-60 dB)
Image rejection:70 dB
AF output power / speaker:2 W at 10% distortion / 8 ohm
External speaker connector:3.5 mm




TRANSMITTER SECTION
RF output power: 10-100 W adjustable
Modulation system:FM: Variable reactance
SSB: Balanced
Max FM deviation (Factory set):5 KHz
Spurious emissions:Better than -60 dB
Microphone impedance / connector:600 ohm / 8-pin (Metal locking ring connector)
Microphone input level:? mV




MISCELLANEOUS
Manufactured:Japan, 1987-199x (Discontinued)
Additional info: Early version had passband tuning (PBT) which was replaced by a
data level pot in the 1988 version and onwards.

New price 1989 in the US: $1199.00
Related documents: User manual (5.2 Mb)
Service manual (29 MB)
Modifications and fixes:
Reviews:
Options / Accessories:
AG-25
CR-64
CT-16
CT-17
FL-83
HM-12
HM-14
HM-15
MB-5
MB-23
PS-30
PS-55
SM-8
SM-10
SP-7
UT-34
UT-36
Weatherproof 2 m preamplifier
High stability crystal unit
Satellite communication interface unit
CI-V level converter
CW narrow filter (500 Hz)
Hand microphone
Hand microphone with DTMF keypad
Hand microphone with 1750 Hz tone call
Mobile mounting bracket
Carrying handle and rubber feet kit
AC power supply. 13.8 VDC, 25 A
AC power supply. 13.8 VDC, 20 A
Desk microphone with two line outputs
Desk microphone with compressor & equalizer
External speaker
Tone squelch unit
Voice synthesizer unit