Icom IC-705
firmware v1.20
Icom · Released Jan 22, 2021 · First seen Sep 7, 2026
Source:
icomjapan.com
v1.20 is not the latest firmware for the Icom IC-705: the current version is v1.40 (August 21, 2025). Go to v1.40
In short — summary by updatemystuff.com
Spectrum scope scroll mode, FT8 presets, antenna tuner support, and expanded memory.
- Scroll mode for spectrum display adjusts range based on operating frequency
- Preset function added for FT8 operation
- AH-705 automatic antenna tuner support with memory functions
Written from Icom's release notes, which are printed in full below.
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What's in this update
Changes from Version 1.12
[Spectrum scope is improved]
-A Scroll mode that can seamlessly change the displaying scope range, depending on the operating frequency, is added.
- A popup screen that displays when SPAN or EDGE change is added.
- The number of FIX EDGE memories is expanded to 4.
[Preset function is added for FT8 operation]
-A Preset function that can set each operation is added.
NOTE
The default settings for the Preset function are for FT8 operation. If your digital software does not support the IC-705, change to an Icom transceiver’s CI-V address that the software supports.
For example, when selecting the IC-9700 in the software, set the CI-V address in the IC-705 to A2, which is the IC-9700’s CI-V address.
[The AH-705 automatic antenna tuner can be used]
-An antenna tuner selecting item is added in the Set mode.
- A Tune Memory setting and a Tune Memory Clear functions are added.
-When [TUNER] on the FUNCTION screen is touched, tuning starts.
[Other changes]
-A WLAN Access Point mode is added.
-A Front Key Customization function that can change the function of [VOX/BK-IN] and [AUTOTUNE/RX>CS] is added.
-[TUNER] is added to the Remote MIC key function.
- You can set 2 voice memories (T1 and T2) and 2 keyer memories (M1 and M2) in IC-705 firmware Version 1.12.
In firmware Version 1.2, the number of Voice memories, Keyer memories, and RTTY memories is increased to 4 in each mode.
Each bank of memories is automatically selected, according to the operating mode. For example, when operating in the SSB mode, the Voice memory bank is automatically selected.
- The "ddd.dddd˚" format is added for the Latitude/Longitude display.
- While operating in the Data mode, the receive tone control is deactivated.
-A menu item that can return to the normal mode is added to the QUICK MENU of Terminal Mode and Access Point Mode.
- Improves the saving of the Battery Pack Confirmation setting.
NOTE
When the firmware is updated, the battery pack selection returns to the default setting (OFF).
Refer to INFORMATION IC-705 Version 1.20 for details.
The compatible programming software for firmware update Version 1.20 can be downloaded here .
The Scroll mode for the RS-BA1 Version 2 software will be added to Version 2.30.
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