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Icom ID-4100A
VHF/UHF Dual Band D-STAR Transceiver

Entry Level D-STAR Mobile with Big Rig Features

Since the introduction of D-STAR in 2001, Icom has been committed to improving and advancing the D-STAR experience. The ID-4100A and it’s advance technology does just that! The upgraded user interface and new enhancements provide a product other digital voice modes cannot match!

Output power:   50W, 15W, 5W (Hi, Mid, Low)
RX frequencies: 118-174, 230-550MHz
Receiver type:   Dual conversion superhetrodyne

User friendly

The ID-4100A’s full dot-matrix display gives the user the ability to see a lot of information on the screen. For example, Repeater list or GPS position information are clearly arranged and easy to read.

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Users can pick between white, green, amber or blue as the backlight color. The backlight night time setting function, allows you to automatically change the display backlight brightness when the designated time comes.

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The DV/FM near repeater search function assists you in accessing nearby repeaters, even in areas you visit 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 ship with the D-STAR repeater memories preprogrammed, but the position data of some D-STAR repeaters may not be entered or exact.

Built-in GPS

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.

Voice & data storage

Add a microSD* card to 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. 
* MicroSD card is sold separately.

Android™ and iOS™ apps available

Install the UT-137 Bluetooth® board and download the RS-MS1I (for iOS™ devices) or RS-MS1A (for Android™ devices) to 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.

Download from Google Play™ >   |   Download from Apple's App Store > 

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Software/App OS Function Required option
Android™ 4.0 or later
Remote control operation
iOS™ 8.0.1 or later
Remote control operation
Android™ 4.0 or later
Terminal/Access Point mode
Windows® 7 or later
Terminal/Access Point mode
Windows® 7 or later
microSD card/OPC-2350LU/

Additional features

  • Data place in voice frames transfer data 3.5 times faster (3480 bps) than in the conventional DV mode (with voice).
  • Terminal mode and access point mode
  • 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
Frequency coverage
144–148, 430–450 MHz
118–174, 230–550 MHz*
 *Guaranteed range 144–148, 430–450 MHz
Type of emission
F2D, F3E, F7W
DV, FM, FM-N, AM (RX only), AM-N (RX only)
No. of memory channels
1000 regular channels, 4 call channels, 50 program scan edges, 1500 repeater memories and 300 GPS memory
Operating temperature range
–10°C to +60°C; 14°F to +140°F
Frequency stability
±2.5 ppm (–10°C to +60°C on the basis of 25°C)
Voice coding speed
Power supply requirement
13.8 V DC ±15%
Current drain Transmit Receive
13.0 A
1.2 A/0.9 A (Max. audio/Stand-by)
Antenna impedance
50 Ω (SO-239)
Dimensions (W × H × D)
Main unit + Controller
150 × 40 × 171.9 mm; 5.9 × 1.6 × 6.8 in
122 × 40 × 29.9 mm; 4.8 × 1.6 × 1.2 in
(W×H×D, Projections are not included.)
Main unit Controller
1.1 kg; 2.4 lb
100 g; 3.5 oz
Output power
50 W, 15 W, 5 W (Hi, Mid, Low)
Max. frequency deviation
±5.0 kHz/±2.5 kHz (W/N)
Spurious emissions
Less than –60 dBc
Microphone impedance
600 Ω (8-pin modular)
Intermediate frequencies
46.35 MHz/450 kHz (1st/2nd)
   FM, FM-N

Less than 0.18 μV (amateur bands at 12 dB SINAD)
Less than 0.22 μV (at 1% BER)
Squelch sensitivity
Less than 0.13 μV (threshold)

More than 60 dB/55 dB
More than 50 dB
Spurious and image rejection
More than 60 dB
Audio output (at 13.8V DC)
More than 2.0 W (10% distortion, 8 Ω load)
Ext. speaker connectors
2 conductor 3.5 (d) mm (1⁄8ʺ)/8 Ω
Receiver sensitivity
  137–159.995 MHz
  160–174.000 MHz
  230–259.995 MHz
  260–321.995 MHz
  322–374.995 MHz
  375–399.995 MHz
  400–499.995 MHz
  500–550.000 MHz
AM/AM-N (10dB S/N)
  118–136.991 MHz
 260–321.995 MHz*
  230–259.995 MHz*
  322–374.995 MHz*
* Only AM mode.

Less than 0.32 μV
Less than 0.32 μV
Less than 1.8 μV
Less than 0.56 μV
Less than 0.56 μV
Less than 0.56 μV
Less than 0.32 μV
Less than 0.56 μV
Less than 1.0 μV
Less than 1.8 μV
Less than 5.6 μV
Less than 1.8 μV
Unit Accessories button

id 4100

Package Includes:
• ID-4100A

• Hand microphone, HM-207S
• Controller cable, OPC-837 (3.5 m; 11.4 ft)
• Mincrophone hanger
• DC power cable, OPC-345B
• Spare fuses




Icom ID-4100A VHF/UHF Dual Band D-STAR Transceiver


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