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Last modified 2015-08-31

Icom IC-275A

A picture of Icom IC-275A
Early version with passband tuning (PBT)

SPECIFICATIONS

GENERAL
Type:Amateur VHF transceiver
Frequency range:TX: 140.1-150 MHz
RX: 138-174 MHz
Tuning steps:10 Hz
1 / 2.5 / 5 / 10 KHz
1 MHz
Mode:FM/SSB/CW
Channels/memory management:99 regular
1 call
2 scan edge
Lithium battery backup
Repeater shift/offset:0-? MHz (600 KHz default)
Power supply:13.8 VDC or mains
Current drain/power consumption:RX: 0.9-1 A
TX: 3-6 A
Antenna impedance/connector:50 ohms / SO-239
Dimensions (W*H*D):241*95*239 mm (9.5*3.7*9.4")
Weight:6.2 Kg (13.7 lbs)
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 ohms
External speaker connector:3.5 mm




TRANSMITTER SECTION
RF output power: 2.5-25 W
Modulation system:FM: Variable reactance
SSB: Balanced
Max FM deviation:5 KHz
Spurious emissions:Less than -60 dB
Microphone impedance/connector:600 ohms / 8-pin




MISCELLANEOUS
Manufactured:Japan, 1987-199x (Discontinued)
Additional info:Early version had passband tuning (PBT) which was
replaced by a data level pot in later version
Related documents:User manual (5.2 Mb)
Modifications:
Options/Accessories:
AG-25
CR-64
CT-16
CT-17
FL-83
MB-5
SM-8
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)
Mobile mounting bracket
Desk microphone with two line outputs
External speaker
Tone squelch unit
Voice synthesizer unit