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IC-705

ICOM
IC-705

Specifications

Prices

Compact and lightweight multi-band transceiver designed for field operations. From HF to 50/70/144/430 MHz with maximum output power of 10 Watts. Direct sampling configuration, all-mode with D-STAR, real-time spectrum scope, Li-ion battery pack. Ideated in Japan, year of introduction 2020.

Reference market : amateur-radio

IC-705 specifications

General

Frequency coverage
Receive [1]	0.0300 ~ 199.9990 MHz 400.0000 ~ 470.0000 MHz
Transmit [2]	1.8000 ~ 1.9990 MHz 3.5000 ~ 3.9990 MHz 5.2550 ~ 5.4050 MHz [3] 7.0000 ~ 7.3000 MHz 10.1000 ~ 10.1500 MHz 14.0000 ~ 14.3500 MHz 18.0680 ~ 18.1680 MHz 21.0000 ~ 21.4500 MHz 24.8900 ~ 24.9900 MHz 28.0000 ~ 29.7000 MHz 50.0000 ~ 54.0000 MHz 70.0000 ~ 70.5000 MHz [4] 144.0000 ~ 148.0000 MHz 430.0000 ~ 450.0000 MHz
Mode
CW / FSK (RTTY) / LSB / USB / AM / FM / D-STAR
Tuning step
1 Hz min

Receiver

Sensitivity
CW / SSB	< 0.2 uV (1.8~30 MHz, 10dB S/N, pre1 ON) < 0.15 uV (50~54 MHz, 10dB S/N, pre2 ON) < 0.11 uV (144/430 MHz, 10dB S/N, pre ON)
AM	< 13.0 uV (0.5~1.8 MHz, 10dB S/N) < 2.0 uV (1.8~30 MHz, 10dB S/N, pre1 ON) < 1.0 uV (50~54 MHz, 10dB S/N, pre2 ON) < 1.0 uV (144/430 MHz, 10dB S/N, pre ON)
FM	< 0.5 uV (28~29.7 MHz, 12 dB SINAD, pre1 ON) < 0.25 uV (50~54 MHz, 12 dB SINAD, pre2 ON) < 0.18 uV (144/430 MHz, 12 dB SINAD, pre ON)
D-STAR	< 1.0 uV (28~29.7 MHz, 1% BER, pre1 ON) < 0.63 uV (50~54 MHz, 1% BER, pre2 ON) < 0.35 uV (144/430 MHz, 1% BER, pre ON)
Selectivity [5]
CW [6]	> 0.5 KHz (-6dB) < 0.7 KHz (-40dB)
RTTY [6]	> 0.5 KHz (-6dB) < 0.8 KHz (-40dB)
SSB [7]	> 2.4 KHz (-6dB) < 3.4 KHz (-40dB)
AM [8]	> 6.0 KHz (-6dB) < 10.0 KHz (-40dB)
FM [9]	> 12.0 KHz (-6dB) < 20.0 KHz (-40dB)
D-STAR [10]	< 25 kHz (-50dB)
RF preamplifiers
Preamp1	for the HF
Preamp2	for the VHF
Spurious and image rejection [11]
> 70 dB (HF/50 MHz) > 54 dB (144/430 MHz)
NB (Noise Blanker)
Yes
DNR (Digital Noise Reduction)
Yes
RIT (Receiver Incremental Tuning)
± 9.99KHz
AGC (Automatic Gain Control)
Off, fast, mid, slow
Frequency stability
± 0.5 ppm max with temperature from -10°C to +60°C
IF (Intermediate Frequency) [12]
1°	38.85 MHz (±0.5 MHz)

Transmitter

Output power
CW / RTTY / SSB / FM / D-STAR	0.5 ~ 5 W (at 7.4 VDC) 0.5 ~ 10 W (at 13.8 VDC)
AM	0.25 ~ 1.5 W (at 7.4 VDC) 0.25 ~ 2.5 W (at 13.8 VDC)
Spurious emission
< -50 dB (1.8~29.7 MHz) < -60 dB (50/144/430 MHz)
Carrier suppression (SSB)
> 50 dB
Unwanted sideband suppression (SSB)
> 50 dB

Features

Memory
500 regular memories 25 for programmed scan limits 4 call channels
Display
10 Hz frequency resolution Segment-bar signal meter
Antenna
BNC 50Ω
Power supply
7.4 Volt DC with BP-272 battery pack 13.8 Volt DC±15% external
Power consumption
0.70A RX, max volume (at 7.4 VDC) 0.32A RX, max volume (at 13.8 VDC) 0.40A RX, standby (at 7.4 VDC) 0.26A RX, standby (at 13.8 VDC) 2.5A TX, max power (at 7.4 VDC) 3.0A TX, max power (at 13.8 VDC)
Audio power
0.53W on 12Ω internal speaker 0.20W on 8Ω external speaker
Connections
Jack (antenna tuner) Jack (CW keyer) Jack (SEND / ALC) microUSB (PC)

Mechanical and environmental data

Operating temperature
from -10°C to +60°C
Dimensions
200 (W) x 83.5 (H) x 82 (D) mm, projections not included
Weight
1.1kg

Some frequency bands are not guaranteed.
Varies according to version.
Only defined channels.
European version.
Filter shape on SHARP.
0,5kHz bandwidth.
2,4kHz bandwidth.
6,0kHz bandwidth.
15,0kHz bandwidth.
12.5 kHz channels spacing.
Except for ADC aliasing.
RF direct sampling on 0.03~25 MHz, down conversion from 25 MHz.

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IC-705 description :

Compact and lightweight design

Real "base station radio" performance and functions packaged in a compact size of approximately 7.9 x 3.3 x 3.2 inch (20 × 8.3 × 8.2 cm). The weight is approximately 1 kg, including BP-272 battery pack. Its compact and lightweight design enables you to hold it with one hand.

ICOM IC-705 Compact and Lightweight design, in the Palm of your Hand

Multi-band

From HF to 50/70/144/430 MHz (70 MHz band will be featured for the European version) in D-STAR DV, SSB, CW, AM and FM modes. The IC-705 receives continuously from the medium wave broadcast band to 144 MHz band. You can also enjoy FM broadcast and air band reception.

RF direct sampling system

The IC-705 uses the RF direct sampling method (down-conversion IF sampling method for 25 MHz and above) which greatly reduces distortion. 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.

ICOM IC-705 Configuration diagram of the RF direct sampling method

Large touch-screen color display

The large 4.3-inch (11cm) touch screen color display dramatically improves visibility and operability in the field. The high speed & high resolution real-time spectrum scope and waterfall display are incorporated in a compact design for the first time in this class.

ICOM IC-705 touch-screen display with spectrum scope

Bluetooth and wireless LAN

Bluetooth and wireless LAN are built-in. They can be used for smartphone linking and remote control, and also for Bluetooth headsets.

Backpack

The IC705 fits perfectly in the optional dedicated LC-192 multi-function backpack. The backpack includes holes for the antenna and for passing through coaxial cable and microphone cable. You can easily operate the IC-705 with it in the backpack.

QRP / QRPp operations

Despite being a portable radio, it achieves the maximum output power of 10W with a 13.8 VDC external power supply. When the standard BP-272 Li-ion battery pack is used, operation at the maximum output power of 5W is possible. True 5 watt QRP as well as 0.5 watt QRPp are supported.

D-STAR functions

The IC-705 is fully equipped with functions to enjoy D-STAR comfortably, such as the DR function and Terminal Mode & Access Point Mode. In addition, you can send / receive and view saved photos using only the IC-705 without any application software.

ICOM IC-705 D-STAR functions

Antenna and SP-Mic come standard

A whip antenna for VHF/UHF and speaker-microphone come standard. The speaker-microphone is equipped with programmable buttons assignable to various functions, such as frequency adjustment and volume control.

GPS and logger

A high-performance GPS antenna is incorporated. In the D-STAR DV mode, you can send and receive location information while communicating. This high-performance GPS enables various functions such as GPS log function and repeater search function.

MicroSD card slot

The IC705 is equipped with a microSD card slot that can be used for firmware upgrades, programming and so on, as well as voice recordings and saving GPS log data.

IC-705 audio scope screen :

This audio scope enables you to display the received signal's frequency component on the FFT scope, and its waveform components on the Oscilloscope. The FFT scope also has a waterfall. Attenuator, level, sweep time, are all adjustable.

ICOM IC-705 audio scope screen

The "Audio Scope SET" screen is used to set the FFT scope waveform type, color, Waterfall display, and oscilloscope waveform color.

IC-705 IF filters :

The IC-705 transceiver has 3 IF filter passband widths (see table) for each mode, and you can select them on the FILTER screen. You can set the IF filter shape for each mode also. SHARP: This selection is to emphasize the passband width of the filter. The filter has an almost ideal shape factor. Signals that are out of the passband are extremely filtered out, and it gives you better audio quality. SOFT: The filter shoulders are roundly formed as in analog filters. This decreases noise components in the high and low frequencies of the filter passband, and increases the Signal-to-Noise ratio of the target signal. These characteristics play an effective role in picking up very weak signals in the 28/50 MHz band, for example. The shape factor is retained, and the sharpness of the bandpass is excellent.

SSB / Selectable range
FIL 1	3.0 kHz Default Adjustable from 50 Hz to 3.6 kHz
FIL 2	2.4 kHz Default Adjustable from 50 Hz to 3.6 kHz
FIL 3	1.8 kHz Default Adjustable from 50 Hz to 3.6 kHz
SSB-D / Selectable range
FIL 1	3.0 kHz Default Adjustable from 50 Hz to 3.6 kHz
FIL 2	1.2 kHz Default Adjustable from 50 Hz to 3.6 kHz
FIL 3	0.5 kHz Default Adjustable from 50 Hz to 3.6 kHz
CW / Selectable range
FIL 1	1.2 kHz Default Adjustable from 50 Hz to 3.6 kHz
FIL 2	0.5 kHz Default Adjustable from 50 Hz to 3.6 kHz
FIL 3	0.25 kHz Default Adjustable from 50 Hz to 3.6 kHz
RTTY / Selectable range
FIL 1	2.4 kHz Default Adjustable from 50 Hz to 2.7 kHz
FIL 2	0.5 kHz Default Adjustable from 50 Hz to 2.7 kHz
FIL 3	0.25 kHz Default Adjustable from 50 Hz to 2.7 kHz
AM, AM-D / Selectable range
FIL 1	9.0 kHz Default Adjustable from 200 Hz to 10 kHz
FIL 2	6.0 kHz Default Adjustable from 200 Hz to 10 kHz
FIL 3	3.0 kHz Default Adjustable from 200 Hz to 10 kHz
FM, FM-D, DV / Selectable range
FIL 1	15.0 kHz Fixed
FIL 2	10.0 kHz Fixed
FIL 3	7.0 kHz Fixed
WFM / Selectable range
FIL 1	200 kHz Fixed

IC-705 front panel :

ICOM IC-705 front panel

Reference / Description
1	TWIN PASSBAND TUNING CONTROL Push to toggle between PBT1 and PBT2, hold down for one second to clear the PBT settings.
2	POWER INDICATOR Lights green while the transceiver is ON, blinks green while the transceiver is in the Screen Saver mode, lights orange while the display is Off, and blinks orange while the transceiver is in the Standby mode.
3	POWER KEY
4	VOX / CW BREAK-IN KEY
5	CALL / DR FUNCTION KEY Push to toggle between the Call channel mode and the VFO/Memory modes, hold down for one second to turn the DR function On or Off.
6	VOLUME / RF-GAIN / SQUELCH CONTROL Rotate to adjust the audio output level, push to display the setting menu and then rotate to adjust the RF gain or squelch threshold levels.
7	MENU KEY
8	FUNCTION KEY
9	MINI SCOPE KEY Push to display the Mini scope screen, hold down for one second to display the Spectrum scope screen.
10	QUICK KEY Open the Quick Menu screen.
11	EXIT KEY Push to exit a setting screen or return to the previous screen.
12	MULTI-FUNCTION CONTROL Push to open the Multi-function menu for various adjustments, then rotate to adjust the value that is assigned to the control.
13	RIT / XIT KEY
14	TRANSMIT FREQUENCY CHECK KEY In the Split or Duplex mode holding the key down enables you to monitor the transmit frequency. In the Simplex mode holding the key down temporally opens the squelch. In the DV mode holding the key down enables you to monitor signals in the FM or DV mode, depending on the Digital Monitor setting.
15	MEMO PAD KEY Push to sequentially call up the contents in the Memo Pads, hold down for one second to save the displayed contents into the Memo Pad.
16	SCAN KEY Push to display the Scan Select screen, hold down for one second to start the previously selected scan.
17	AUTO TUNE / RX CALL SIGN CAPTURE KEY In the CW mode pushing the key automatically tunes the operating frequency to a close-by CW signal. In the DV mode push to display the RX history list, or hold down for one second to capture the latest received call sign as a temporary call destination.
18	SPEECH / LOCK KEY
19	AMBIENT LIGHT SENSOR Used to automatically adjust the display's backlight brightness.
20	TX/RX INDICATOR Lights red while transmitting and lights green while receiving.
21	CHARGING INDICATOR
22	MAIN DIAL

IC-705 side panels :

ICOM IC-705 side panels

Reference / Description
1	SEND / ALC Connect to control transmit with non-Icom external units or the ALC output jack of a non-Icom linear amplifier (3.5 mm stereo jack).
2	TUNER Accepts the control cable from an external antenna tuner (3.5mm stereo jack).
3	DC POWER
4	KEY Connects to a straight key, paddle, an external electronic keyer, or an external keypad (3.5mm stereo jack).
5	USB (Type-B)
6	ANTENNA (BNC)
7	SP / MIC Connect a speaker microphone or headset (SP 3.5mm jack, MIC 2.5mm jack).
8	GROUND
9	micro-SD CARD Slot

IC-705 photo gallery :

ICOM IC-705 outdoor photo

IC-705 price

We have collected for your convenience the ICOM IC-705 sale price (UK Pounds) and its trend over time. Useful to guarantee a cheaper purchase of this radio and to put it for sale in the second-hand market. Of course offers, accessories, warranty terms and conditions can lead to different figures.

Price	Date	Condition
GBP 1369.00	2023-mar	Brand-new
GBP 1288.00 (1499EUR)	2021-jan	Brand-new
GBP 1299.95	2020-nov	Brand-new

IC-705 review

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