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Last modified 2021-03-24

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Icom IC-275A

A picture of Icom IC-275A

SPECIFICATIONS

GENERAL
Type:Amateur VHF transceiver
Frequency range:TX: 140.1-150 MHz (USA)
TX: 144-148 MHz (Australia)
RX: 138-174 MHz (Modification may be required)
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
Lithium backup battery
Repeater shift/offset:0-? MHz (600 KHz default)
Power supply:Mains: 117 VAC 10% (USA), 240 VAC 10% (Australia)
or 13.8 VDC
Current drain/power consumption:RX: 0.9 to 1 A @ 13.8 VDC
TX: 3 to 6 A @ 13.8 VDC
Antenna impedance/connector:50 ohm / SO-239
Dimensions (W*H*D):241*95*239 mm (9.5*3.7*9.4")
Weight:6.2 Kg (13.7 lb)
Other features:




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: 2.5-25 W adjustable
Modulation system:FM: Variable reactance
SSB: Balanced
Max FM deviation:5 KHz
Spurious emissions:Less than -60 dB
Microphone impedance/connector:600 ohm / 8-pin (Metal locking ring connector)
Microphone input sensitivity:? 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: $1099.00
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
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
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