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Last modified 2023-09-19

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Icom IC-21A

A picture of Icom IC-21A


Type:Amateur VHF transceiver
Frequency range: TX: 144-148 MHz
RX: 144-148 MHz
Tuning steps:Channelized (External VFO option)
Frequency stability:? ppm
Mode:FM / NFM
Channels / memory management: 24 regular
Repeater shift / offset:According to XTALs
Power supply:Mains or 13.5 VDC
Current drain / power consumption:RX: ? mA @ 13.5 VDC
TX: ? A @ 13.5 VDC
Antenna impedance / connector:50 ohm / SO-239
Dimensions (W*H*D):230*111*260 mm (9.06*4.37*10.24")
Weight:7.2 Kg (15.87 lb)
Other features:SWR meter.

Receiver system: Double conversion superheterodyne
1st IF: 10.7 MHz
2nd IF: 455 KHz
Image rejection:
AF output power / speaker:? W at ?% distortion / ? ohm
External speaker connector:

RF output power: 0.5 to 10 W
Modulation system:
Max FM deviation (Factory set):FM: ? KHz
NFM: ? KHz
Spurious emissions:Better than -? dB
Microphone impedance / connector:? ohm / 3-pin (Metal locking ring connector)
Microphone input level:? mV

Manufactured:Japan, 197x-197x (Discontinued)
Additional info:
Related documents: NB! There is a manual flying around the internet, claiming it's for IC-21A. It is
also available from Icom's own site. However, it's actually for IC-21 (without A)
which is a bit different in design.

So, if anyone has the version A manual, please contact me so I can upload it here
for the benefit of our fellow hams ;-)
Modifications and fixes:
Options / Accessories:
? External digital VFO