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The Icom R100 is a compact multi-function receiver covering from 100 kHz to 800 MHz and 900 to 1856 MHz (specifications guaranteed from 500 kHz to 800 and 900 to 1800 MHz). Reception modes include AM, FM and FM-wide. The R100 is easy to operate. You can use either the keypad or tuning control to access frequency and memory channels. Of the 121 total memory channels, 100 store operating frequencies, modes, RF attenuator and preamplifier settings. 20 scan edge memory channels are used for specifying ten pairs of frequency ranges required for programmed scan. Auto-memory write automatically memorizes received frequencies (channels 80 ~ 99). One channel is used for priority scan. The built-in 24 hour clock-timer has lithium battery backup. A 15 dB preamp operates in the 50 to 800 MHz range. Three separate antenna jacks on the rear panel are utilized for 0.1 - 50 (SO239), 50 - 800 (N) and 905 - 1856 MHz (N). A large backlit LCD ensures readability. Other supplied features include: AFC, ANL, mobile bracket and telescopic antenna.

The R100-3 model is the same as the R100-11, but without the 800-900 MHz gap. The R100-3 was available for government or export only.

General characteristics

HAM bands
Frequency stability
Tuning steps
1 / 5 / 8 / 9 / 10 / 12.5 / 15 / 20 / 25 kHz
100 channels in 1 bank(s)


0.1-1856 MHz
AM   FM   W-FM  
1.60 µV 1.6-50 MHz
0.56 µV 50-905 MHz
1.00 µV 905-130 MHz
1.40 µV 1380-1800 MHz
AM: 6.0 kHz
N-FM: 15 kHz
W-FM: 180 kHz
Receiver system
Image rejection
Audio output
2.5 W @ 4 - 8 ohms


SO-239 + N-type
50 Ω


Power requirements
13.8V DC
Current drain RX
1.1 A max


Dimensions (w×h×d)
150 × 50 × 181 mm (5.91 × 1.97 × 7.13 in)
1.40 kg (3.1 lbs)
Form factor
Between 1990 and 1998 in Japan

Other features

Amateur / Ham radio operators
Features + options
RigReference ID

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New and second-hand prices

Estimating the value of a rig can be challenging. We collect prices paid by real hams over the years to help you estimate the value of a used ICOM IC-R100. Just bought or sold this model? Let us know what you traded it for and help other ham operators!

Based on historic data, today's second-hand price of the ICOM IC-R100 is around:

  • EUR 199.00

Price History Chart

These estimates are based on the following prices:

Year Historic price Condition Submitted by
2022 EUR 200.00 Used / Good SWL_de

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