ICOM IC-FR3100/F4100 VHF/UHF 5/25Watts
Main Features:
- 25 Watt continuous full duty cycle operation
- Automatic battery backup system
- Multiple CTCSS & DTCS tone memories with multiple memory channels
- Built-in 2-Tone, 5-Tone, DTMF encoder & decoder
- Internal space for duplexer and isolator
- Telephone interconnect capability DTMF remote control capability
- Wall or rack mount available
- Master/Slave backup operation by connecting two repeaters
- Accessory connector (D-sub 25-pin) on the rear panel for trunking controller including LTR, PassPort, SmarTrunkll and MPT1 327
- Compatible with VEGA tone remote control system
- 5-Tone relay function
- Optional Voice Scrambler UT-1 09 or UT-110
- CW ID transmitter (DTMF or 5-Tone also selectable)
- Password and kill/stun function for security
- 16-digit alphanumeric display for base station operation
- A programmable button gives access to a customized function
25 Watt continuous full duty cycle operation
Employing a large heat sink, cooling fan and high performance power amplifier, the IC-FR3100/FR4100 provides a stable 25W at full duty cycle operation.
Automatic battery backup system
A built-in backup system supports automatic switching to an external power supply (13.2V DC) if the AC power supply fails.
Multiple CTCSS & DTCS tone memories with multiple memory channels
Up to 16 CTCSS/DTCS tones (TX/RX tones independently) can be programmed per channel. This feature allows you to share a channel with multiple user groups. You can also give priority/exclusive use to a specified group simply by programming different tones to another memory channel. Ideal for many different applications.
Built-in 2-Tone, 5-Tone, DTMF encoder & decoder
Multiple signalling systems are equipped as standard. These systems are fully compatible with Icom F-series radios.
Internal space for duplexer and isolator
The repeater has an internal space to install a duplexer and isolator*. The controls of the duplexer are accessible from the front of the repeater without disassembly. Faster and easier maintenance, and simple, convenient adjustment is possible.
* Ask your dealer for details about available duplexer's and isolators.
Telephone interconnect capability
DTMF remote control capability
You can control the repeater from a remote location over the air or over a phone line with DTMF.
Wall or rack mount available
With an optional microphone, the repeater can be placed on a desktop as a base station. The optional MB-77 wall mount bracket allows you to set the repeater on a wall. A 19" 3U height rack mount bracket, MB-78, is also available.

Frequency Range: VHF: 150–174MHz; UHF 400–430MHz, 450–480MHz
Memory Channels: 32
Dimensions: 410mm x 110mm x 360mm (W x D x H)
Weight: 12kg
Download PDF Data Sheet:
ICOM-IC-FR3100-F4100-VHF-UHF-5-25Watts-100130.pdf (195.65 KB)
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Manufacturer: Icom
A comprehensive portfolio of radio transceiver, receiver, navigation and computer products is maintained to suit the consumer, commercial, radio-amateur, marine and aviation markets. Equipment is available in fixed-base, vehicle-mobile and handheld formats to suit a wide range of specifications and applications.
Category: Base Station
Class: UK Product
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Back To Top
Installation Accessories
Wall Mounting Bracket MB-77
MB-77 Wall Mounting Bracket
For mounting the repeater on a wall. Hinges provide easy maintenance while mounted.
Compatible with:
- Icom IC-FR3100
- Icom IC-FR3400
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- Icom IC-FR3100
- Icom IC-FR3400
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- Icom IC-FR3100
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Handheld Standard Microphone
Icom HM-100N Icom standard microphone
Compatible With:
- Icom IC-FR3100
- Icom IC-FR3400
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Desktop Microphone/Speaker SM-25
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Compatible With:
- Icom IC-FR3100
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UT-110 VOICE SCRAMBLER UNIT
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Compatible With:
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| UT-110 | Icom UT-110 VOICE SCRAMBLER UNIT | P.O.A. |
Installation Accessories
Wall Mounting Bracket MB-77
MB-77 Wall Mounting Bracket
For mounting the repeater on a wall. Hinges provide easy maintenance while mounted.
Compatible with:
- Icom IC-FR3100
- Icom IC-FR3400
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Repeater Mounting Bracket MB-78
Icom MB - 78 1 9 ˝ RACK MOUNT BRACKET
The 19 inch rack mount bracket is 3U height
(133.5mm).
Compatible With:
- Icom IC-FR3100
- Icom IC-FR3400
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P.O.A.
Wall Mounting Bracket MB-77
MB-77 Wall Mounting Bracket
For mounting the repeater on a wall. Hinges provide easy maintenance while mounted.
Compatible with:
- Icom IC-FR3100
- Icom IC-FR3400
| MB-77 | MB-77 Wall Mounting Bracket | P.O.A. |
Repeater Mounting Bracket MB-78
Icom MB - 78 1 9 ˝ RACK MOUNT BRACKET The 19 inch rack mount bracket is 3U height (133.5mm).
Compatible With:
- Icom IC-FR3100
- Icom IC-FR3400
| MB-78 | Icom Repeater 19 inch Mounting Bracket | P.O.A. |