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Last modified 2021-03-11

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Icom IC-28A

A picture of Icom IC-28A

SPECIFICATIONS

GENERAL
Type:Amateur VHF transceiver
Frequency range:TX: 140.1-150.0 MHz (USA)
TX: 144-148 MHz (Australia)
RX: 138-174 MHz
Tuning steps:5 / 10 / 15 / 20 / 25 KHz
Frequency stability:±? ppm
Mode:FM
Channels/memory management: 20 regular
1 call
Lithium battery backup
Repeater shift/offset:±600 KHz (0-7.99 MHz programmable)
Power supply:13.8 VDC ±15%
Current drain/power consumption:RX: 450-800 mA
TX: 3-6 A
Antenna impedance/connector:50 ohm / SO-239 (On pigtail)
Dimensions (W*H*D):140*50*133 mm (5.5*2*5.2")
Weight:950 g (2.1 lb)
Other features:CTCSS/PL encoder, Dimmer.




RECEIVER SECTION
Receiver system:Double conversion superheterodyne
1st IF: 17.2 MHz
2nd IF: 455 KHz
Sensitivity:0.18 uV (12 dB SINAD)
Selectivity:12.5 KHz (-6 dB), 25 KHz (-60 dB)
Image rejection:
AF output power/speaker:2.4 W at 10% distortion / 8 ohm
External speaker connector:3.5 mm, 4-8 ohm




TRANSMITTER SECTION
RF output power:

HighLow
2 m:25 W5 W
Modulation system:Variable reactance frequency modulation
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, 1986-198x (Discontinued)
Additional info:New price 1989 in the US: $409.95
Related documents:User manual (12.3 MB)
Modifications and fixes:
Reviews:
Options/Accessories:
HM-12
HM-14
HM-15
HM-16
HM-17
HS-15
HS-15SB
OPC-102
PS-45
SM-8
SM-10
SP-7
SP-10
UT-28
UT-29
Hand microphone with up/down buttons
Hand microphone with DTMF and up/down buttons
Hand microphone with 1750 Hz tone call and up/down buttons
Speaker microphone
Speaker microphone with 1750 Hz tone call
Flexible mobile microphone
Switch box for HS-15
Interface cable for PS-45
AC power supply, 13.8 VDC, 8 A
Electret condenser desk microphone, dual line output
Compressor/graphic equalizer microphone
Base speaker
Mobile speaker
Digital code squelch unit
Tone squelch unit