ICOM ID-4100A Transceiver

ICOM ID-4100A Transceiver

Price: $685.00

Model: ID-4100A
Manufacturer: ICOM
Warranty: 5 Years Warranty

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Enjoy D-STAR Communication More Actively and More Comfortably

Terminal Mode and Access Point Mode Expand Communication Coverage and Fun

Terminal and Access Point modes* enable you to enjoy long-distance D-STAR (Digital Smart Technology for Amateur Radio) communication through the Internet. You can access the D-STAR repeater network through the Internet, regardless of locations and conditions of nearby repeaters.
* An optional free download software, RS-MS3W is required to be installed in the PC. An optional free download application, RS-MS3A is required to be installed, in the Android™ device.

Terminal Mode

By connecting the ID-4100A to the Internet through a Windows® PC or Android™ device, the Terminal mode enables you to use a D-STAR repeater to make D-STAR gateway calls.
Terminal Mode

Access Point Mode

The Access Point mode enables another D-STAR transceiver to make D-STAR gateway calls through the ID-4100A connected to the Internet. 50 watts of output power can be used for a D-STAR access point.
Access Point Mode

Compact, Detachable Controller for Flexible Installation

The controller can be attached or detached from the main unit for flexible installation. By using the supplied OPC-837 controller cable, you can install the controller up to 3.5 meters (11.5ft) away from the main unit.
Vehicle installation example
Vehicle installation example (Using the optional MBF-1 mount base and MBA-8 controller bracket)

Installation example
Installation example (Using the optional OPC-2350LU data cable and RS-MS3W software for Windows® PC)

DR (D-STAR Repeater) Function

The DR function makes D-STAR communications simple. By simply selecting a destination call sign in “To”, and your access repeater in “From”, you can talk with other D-STAR users. In addition, using the reflector function, you can talk through several repeaters at once.

Easy-to-Read Full Dot-Matrix Display

To increase the amount of display information, a full dot-matrix display is used in the ID-4100A. For example, Repeater list or GPS position information are clearly arranged and easy to read.
GPS position information example
GPS position information example

Repeater list example
Repeater list example

DV/FM Near Repeater Search Function

The DV/FM near repeater search function assists you in accessing nearby repeaters, even in areas you are visiting for the first time. The function searches for nearby repeaters using the repeater memories with the GPS position information.
* To use the near repeater search function, the position data of the repeater is required. The ID-4100A will be shipped with the D-STAR repeater memories preprogrammed, but the position data of some D-STAR repeaters may not be entered or exact.

Applications for iOS™ and Android™ devices*

The RS-MS1I (for iOS™ devices) and RS-MS1A (for Android™ devices) enable you to wirelessly connect to the ID-4100A and remotely set the DR functions, link with a map application and send/receive messages over the DV mode. In addition, pictures taken by a smart device can be transmitted via the DV Fast Data mode or DV mode.
*The optional UT-137 Bluetooth® unit must be installed in the ID-4100A. Some functions may not work properly, depending on smart devices used.

DR function setting example
DR function setting example
Text messaging example
Text messaging example
Sending picture example
Sending picture example
Repeater map example
Repeater map example ©2014 Google – Map data

DV Fast Data Mode*

By using the data place in voice frames, the ID-4100A transfers data 3.5 times faster (3480 bps) than in the conventional DV mode (with voice).
* The DV Fast Data mode is not compatible with the DV mode low-speed data communication.

Wireless Operation with VS-3 Bluetooth® Headset*

The optional VS-3 Bluetooth® headset provides convenient wireless communication away from the transceiver. The VS-3 remotely controls the ID-4100A with three programmable buttons.
* The optional UT-137 Bluetooth® unit must be installed in the ID-4100A.

microSD Card Slot for Voice and Data Storage*

microSD card slot
When used with a microSD card, you can store various information including voice memory, TX voice message, QSO log, RX history log and GPS log data. Memory channels and other settings can be saved and loaded into the transceiver.
* A microSD card is required separately.

Integrated GPS Receiver

The integrated GPS receiver shows your own position, course, speed and altitude on the display and can be used for exchanging position reports, D-PRS and searching for nearby repeaters.

Wideband Receiver

The ID-4100A receives 118–174 and 230–550 MHz*1. You can listen to air band, marine, weather channels*2 and other VHF and UHF utility communications.
*1 Working range not guaranteed.
*2 USA version only.

Selectable LCD and Key Backlight Color

The backlight color of the LCD and keys is selectable from white, green, amber or blue. Using the backlight night time setting function, the display backlight brightness can automatically be changed when the designated time comes.

Selectable LCD and Key Backlight Color

Other Features

  • The QUICK key allows instant access to menus listing dedicated functions depending on mode
  • Multiple scan functions for Memory/Bank scan, Full scan, Band scan, Program scan, Program link scan, Duplex scan Tone scan and DR scan
  • 16 channels of DTMF memory (24-digit)
  • CTCSS/DTCS signaling with the split tone functions (analog mode)
  • 8.33 kHz air band channel reception
  • Auto repeater function (USA version only)
  • HM-207S remote-control hand microphone (supplied as standard)
  • D-STAR (Digital Smart Technology for Amateur Radio) is a digital radio protocol developed by JARL (Japan Amateur Radio League).
  • Android is a registered trademark or trademark of Google Inc.
  • Windows is either a registered trademark or a trademark of Microsoft Corporation in the United States and/or other countries.
  • The Bluetooth® word mark and logos are registered trademarks by Bluetooth SIG, Inc. and any use of such marks by Icom Inc. is under license.
  • IOS is a trademark or registered trademark of Cisco in the U.S. and oheer countries and is used under license.


Frequency coverageTransmit: 144–148, 430–450 MHz
Receiver: 118–174, 230–550*1 MHz
Type of emissionF2D, F3E, F7W
ModeDV, FM, FM-N,
AM (RX only), AM-N (RX only)
Operating temperature range−10°C to +60°C;
+14°F to +140°F
Frequency stability±2.5ppm
(−10°C to +60°C on the basis of 25°C)
Antenna impedance50Ω (SO-239)
Number of memory channels1000 regular channels,
4 call channels,
50 program scan edges,
1500 repeater memories
and 300 GPS memories
Power supply requirements13.8V DC ±15%
Current drain (approximate)TX13.0A
RX1.2A/0.9A (
Projections are not included)
Main unit + Controller150×40×171.9 mm;
5.9×1.6×6.8 in
Controller122×40×29.9 mm;
4.8×1.6×1.2 in
Weight (approximate)Main unit1.1kg; 2.4 lb
Controller100g; 3.5 oz

Guaranteed range:
*1 144–148, 430–450MHz.
*2 144–148, 430–440MHz


Output power (at 13.8V DC)50W, 15W, 5W (Hi, Mid, Low)
Max. frequency deviation±5.0kHz/±2.5kHz (W/N)
Spurious emissionsLess than −60dBc
Microphone impedance600Ω (8-pin modular)


Intermediate frequencies46.35MHz/450kHz (1st/2nd)
SensitivityFM/FM-NLess than 0.18μV
(amateur bands at 12dB SINAD)
DVLess than 0.22μV
(at 1% BER)
Squelch sensitivityLess than 0.13μV
SelectivityFM/FM-NMore than 60dB/55dB
DVMore than 50dB
Spurious and image rejectionsMore than 60dB
Audio output powerMore than 2.0W
(10% distortion, 8Ω load)
External speaker connector2 condcutor 3.5 (d) mm (1/8″)/8Ω
Receiver sensitivity
(Except amateur bands.)
(12dB SINAD)
137–159.995MHz Less than 0.32μV
160–174.000MHz Less than 0.32μV
230–259.995MHz Less than 1.8μV
260–321.995MHz Less than 0.56μV
322–374.995MHz Less than 0.56μV
375–399.995MHz Less than 0.56μV
400–499.995MHz Less than 0.32μV
500–550.000MHz Less than 0.56μV
(10dB S/N)
118–136.991MHz Less than 1.0μV
230–259.995MHz* Less than 5.6μV
260–321.995MHz* Less than 1.8μV
322–374.995MHz* Less than 1.8μV

* Only AM mode.

All stated specifications are subject to change without notice or obligation.

ID-4100A Accessories



HM-209Active noise cancelingTBA
HM-207SSame as suppliedTBA



MBF-1Suction cup mounting base. MBA-8 is required.TBA






MBF-4For mounting the main unitTBA



OPC-4405m (16.4ft)TBA
OPC-6472.5m (8.2ft)TBA



OPC-589For use with an 8-pin microphoneTBA



OPC-11563.5m (11.4ft) cable with a modular connectorTBA



OPC-2350LUUSB cable for connection with an Android™ device or a PC.TBA



OPC-478UCUSB programming cable for PC.TBA



SP-352m (6.5ft) cableTBA
SP-35L6m (19.6ft) cableTBA
SP-304 inch (102.5mm) diameter speakerTBA

Bluetooth® UNIT & Bluetooth® HEADSET


VS-3Use with UT-137 in a pairTBA



CS-4100Free download cloning software.
Download from Icom website.
RS-MS3WFree download Terminal/Access point mode software for Windows®.
Download from Icom website.



RS-MS1AFree download remote control application for Android™. For using the extended D-STAR functions to exchange images or messages, or display received D-PRS station data on a map application.
Download from Google Play™
RS-MS3AFree download Terminal/Access point mode application for Android™.
Download from Google Play™



RS-MS1IFree download remote control application for iOS™. For using the extended D-STAR functions to exchange images or messages, or display received D-PRS station data on a map application.
Download from AppStore℠.

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