USA Version

“Base Station” performance and features in the palm of your hand.

First 3D data of IC-705!

Making QSOs with an IC-705 is absolutely fun, but there is even more to the rig.

Based on "Be Active" philosophy, we have decided to release the 3D data, to support IC-705 users interested in creating original items to customize the radio.

We hope to deepen the joy of your HAM life with the IC-705.

"Be Active!"

Download IC-705 3D data

*IC-705 3D data is provided in Stl format, which is compatible with numerous 3D modeling software and 3D printers.

HF/50/144/440 MHz Multimode

From HF to 50/144/440 MHz, you can enjoy a variety of bands in the D-STAR DV, SSB, CW, RTTY, AM and FM modes. The IC-705 receives continuously from 30 kHz through the 144 MHz band. You can also enjoy FM broadcast and air band reception.

RF Direct Sampling System

Configuration diagram of the RF direct sampling method

The IC-705 employs an RF direct sampling system, where RF signals are directly converted to digital data. Then processed in the FPGA (Field-Programmable Gate Array), making it possible to simplify the circuit construction as well as reducing internal noise that can mask weak signals.

* The down-conversion IF sampling method is used for 25 MHz and above.

Real-Time Spectrum Scope and Waterfall Display

Display example of real-time spectrum scope and waterfall

Performance seen with the IC-7300 and IC-9700 spectrum scope is at the tip of your fingers for field operation. You can quickly see band activity as well as finding a clear frequency, all in the compact radio and not as an expensive add-on. Scroll mode automatically keeps the operating signal within the scope range.

Large Touch Screen Color Display

The large 4.3” color TFT touch LCD, same size as the IC-7300 and IC-9700, offers intuitive operation of functions, settings, and various operational visual aids, such as the band scope, waterfall, and audio scope functions. 

One-Touch FT8 Mode Preset

Preset memory offers smooth FT8 mode operation. You can start FT8 mode operation only by selecting [FT8] from PRESET menu. Up to five preset memories can be stored.

Compact and Lightweight Design

"Base Station" performance in the palm of your hand! You will quickly see how this compact radio is rugged, for outdoor use, in a small, lightweight package, weighing approximately 1.1 kg (2.4 lb).

BP-272 Li-ion Battery Pack or 13.8 V DC External Power Supply

BP-272 attached (Rear panel view)

Utilizing the high capacity Li-ion battery from the ID-51A and ID-31A handheld radios.
A 13.8 V DC external power supply can be used for operation and charging of the BP-272

Maximum Output Power 5 W (BP-272), 10 W (13.8 V DC)

In portable mode, the IC-705 has the maximum output power of 5 W from the BP-272 which can last approximately 3 hours*. This is perfect for true 5 W QRP as well as the 0.5 W QRPp operations. Once you setup with a 13.8 V DC power source, you have up to 10 W.

* TX : RX : standby = 1 : 1 : 8 (The Power Save function ON, in the FM mode)

WLAN/Bluetooth® Technologies

Utilize WLAN/Bluetooth® technologies for linking and remote control, for a true wireless operation.  The VS-3 headset (optional) enables more comfortable operation via Bluetooth®

GPS Functions

An internal GPS receiver and antenna enhance your operations by providing location logging*, RX/TX locations via D-PRS , “Near Me” repeater search/scan, QSO recording with metadata*, and internal clock synchronization.  

* A microSD memory card is required.

microSD Card Slot

The microSD card slot enables the storage of user profiles, QSO recording, TX voice memory keyer, RTTY logging, GPS data, screen capture, firmware upgrades, and programming.

Micro USB Connector

In addition to the two COM ports, radio control plus audio, the IC-705 can be charged via the micro USB port.

D-STAR Functions

Enjoy the latest DV mode features with the IC-705. Have direct access to the D-STAR network with Terminal/Access point modes. Additionally, the IC-705 has the Photo Share feature introduced with the IC-9700. Share photos, without the need of a computer with other users with an IC-705 and IC-9700.

D-STAR System Introduction
Find the D-STAR system introduction and features from here. 

Programmable Speaker Microphone

HM-243 Speaker microphone

Enjoy portable operations with the supplied HM-243, programmable speaker microphone. Perfect for operation with the IC-705 safely secured in the optional LC-192 backpack. User assignable buttons put functions like frequency and volume adjustments at the tip of your fingers, without removing your backpack.

What is D-STAR?

The term D-STAR is Digital Smart Technology for Amateur Radio.

It is an open protocol for digital communications established by JARL (Japan Amateur Radio League).

Optional Backpack, LC-192, Ideal for Field Operations

LC-192 Multi-function backpack

Designed to be the "Ultimate", must have accessory for the IC-705, the LC-192 is the perfect utility backpack. Features like a safety strap, with a 1/4”-20 mounting lug to keep the IC-705 from accidentally falling out of the custom radio compartment, to the user adjustable internal panels for custom compartments for antennas, battery packs, or other items necessary for an afternoon SOTA activation.

Side / Rear Panel View

Bluetooth® connection has not been tested for all Bluetooth® compatible devices with this product. This does not guarantee that all devices will work with this product.


Frequency coverage (Unit: MHz) Receiver





USB, LSB, CW, RTTY, AM, DV, FM, WFM (Rx only)

No. of memory channels

Memory channels: 500 channels (100 groups)

Scan edges: 25 channels

Call channels: 4 channels (2 channels × 2 bands)  

Antenna connector

BNC connector (50Ω)(One connector for all bands)

Power supply requirement

13.8 V DC ±15% (with external power supply)

7.4 V DC (with BP-272)

Operating temp. range

–10°C to +60°C; +14°F to +140°F

Frequency stability

Less than ± 0.5 ppm

(–10°C to +60°C; 14°F to 140°F)

Frequency resolution

1 Hz

Current drain  13.8 V DC 7.4 V DC

TX (Max. power)

Less than 3 A (10 W)

Less than 2.5 A (5 W)
RX (Max. audio) 0.5 A (typical) 0.8 A (typical)
RX (Standby) 0.3 A (typical) 0.5 A (typical)

200×83.5×82 mm; 7.9×3.3×3.2 in (W×H×D, projections not included)


1.1 kg; 2.4 lb (approximate; including BP-272)

* Some frequency bands are not guaranteed.


Output power

13.8 V DC

7.4 V DC 

0.1 to 10 W

0.1 to 5 W
AM 0.025 to 2.5 W 0.025 to 1.25 W
Modulation system SSB

Digital PSN modulation

AM Digital low power modulation
FM Digital reactance modulation
DV Digital GMSK modulation
Spurious emissions

Less than −50 dB (HF)

Less than −60 dB (50 MHz)

Less than −60 dB (144/430 MHz)

Carrier suppression More than 50 dB
Unwanted sideband

More than 50 dB


Receiver system 0.030 to 24.999 MHz

RF Direct Sampling         

25.000 MHz and above

Down Conversion IF Sampling

Intermediate frequencies

25.000 MHz and above:38.85 MHz±0.5 MHz

(HF: Preamp-1 ON,
50 MHz: Preamp-2 ON,
144/430/440 MHz: Preamp ON)

0.500 to 1.799 MHz

1.800 to 29.999 MHz 50 MHz to 54 MHz 144/430/440 MHz
SSB/CW(10 dB S/N) - 0.20 μV 0.15 μV 0.11 μV
AM(10dB S/N)

13.0 μV

2.0 μV 1.0 μV 1.0 μV

0.5 μV (28.000 to 29.700 MHz)

0.25 μV 0.18 μV
DV(1% BER)(PN9)

1.0 μV (28.000 to 29.700 MHz)

0.63 μV 0.35 μV
Selectivity (Filter: SHARP) SSB(BW=2.4 kHz)

More than 2.4 kHz/-6 dB

Less than 3.4 kHz/-40 dB

CW(BW=500 Hz)

More than 500 Hz/-6 dB

Less than 700 Hz/-40 dB

RTTY(BW=500 Hz)

More than 500 Hz/-6 dB

Less than 800 Hz/-40 dB

AM(BW=6 kHz)

More than 6.0 kHz/-6 dB

Less than 10 kHz/-40 dB

FM(BW=15 kHz)

More than 12.0 kHz/-6 dB

Less than 22 kHz/-40 dB

DV(12.5 kHz spacing)

Less than -50 dB

Spurious and image rejection ratio 


HF: More than 70 dB*
(except for ADC aliasing)
50 MHz: More than 70 dB*
144 MHz: More than 65 dB
430 MHz: More than 54 dB
* At Intermediate frequency in 25–30 MHz or 50–54 MHz: More than 50 dB

Audio output power Internal SP

More than 530 mW (12 Ωload at 10% distortion)

External SP

More than 200 mW (8 Ωload at 10% distortion)

Applicable U.S. Military Specifications

Icom makes rugged products that have been tested to and passed the following MIL-STD requirements and strict environmental standards.

MIL-810 G
Method Procedure
High Temperature 501.5 I, II
Low Temperature 502.5 I, II
Vibration 514.6 I

Also meets equivalent MIL-STD-810-C, -D -E and -F.
All stated specifications are subject to change without notice or obligation.

Supplied Accessories

  • HM-243 Speaker-microphone
  • BP-272 Battery pack
  • OPC-2421 DC power cable

Catalogs / Brochures

Brochures Name Size
HAM Radios and Receivers 6.90MB
IC-705 (LT) 3.38MB
AH-705 1.43MB

Instruction Manual / Guides

Name Model Name Note
PRECAUTIONS (German/Spanish/French/Italian) AH-705
BASIC MANUAL (Italian) IC-705
BASIC MANUAL (German) IC-705
Firmware Update Information IC-705
BASIC MANUAL (Spanish) IC-705
BASIC MANUAL (French) IC-705
BASIC MANUAL (English) IC-705
About the Share Pictures function IC-9700/IC-705/IC-905
D-STAR Using the GPS Logger function ID-52A PLUS/ID-52E PLUS/ID-52A/ID-52E/IC-705/ID-51A/ID-51E/ID-31A/ID-31E/ID-31A PLUS/ID-31E PLUS/ID-50A/ID-50E
D-STAR Updating the repeater list ID-52A PLUS/ID-52E PLUS/ID-52E/ID-52A/IC-705/IC-905/IC-9700/IC-7100/ID-4100E/ID-4100A/ID-5100E/ID-5100A/ID-51E/ID-51A/ID-31E/ID-31A/ID-31E PLUS/ID-31A PLUS/ID-50A/ID-50E
D-STAR Application Guide ID-52A/ID-52E/IC-705/IC-905/IC-9700/IC-7100/ID-4100E/ID-4100A/ID-5100E/ID-5100A/ID-51E/ID-51A/ID-31E/ID-31A/ID-31E PLUS/ID-31A PLUS/RS-MS1A/RS-MS1I/RS-MS3A/ST-4001A/ST-4001I/ID-50A/ID-50E
INSTRUCTIONS (English/Japanese) LC-192
Installation Guide for Windows 11/10 USB Driver IC-705/IC-905/ID-52A/ID-52E/ID-50A/ID-50E/ID-52A PLUS/ID-52E PLUS/RS-BA1 Version 2

Firmware / Software

Type Model Name Version Last Update
Programming software CS-705 Version 1.21 2022.12.22
Repeater List IC-705 221222 2022.12.22
Firmware IC-705 Version 1.32 2022.12.22
USB Driver IC-705 Version 1.00 2020.07.31
USB Driver IC-705/IC-905/IC-R15/ID-52A/ID-52E/ID-50A/ID-50E/ID-52A PLUS/ID-52E PLUS Version 1.50 2024.07.12
USB Driver IC-705/IC-905/ID-52A/ID-52E Version 1.20 2023.04.07
USB Driver IC-705/IC-905/ID-52A/ID-52E/ID-50A/ID-50E Version 1.30 2023.07.28
USB Driver IC-705/ID-52A/ID-52E Version 1.12 2021.12.24
Control software RS-BA1 Version 2 Version 2.60 2024.05.15
Time adjustment software ST-4003W Version 1.00 2021.11.30

Icom IC-705 Basic function

Advanced Operation of the IC-705

Introduction for Icom AH-705 Automatic Antenna Tuner