Icom IC-7800
firmware v2.21
Icom · Released Apr 1, 2010 · First seen Sep 7, 2026
Source:
icomjapan.com
v2.21 is not the latest firmware for the Icom IC-7800: the current version is v3.10 (May 21, 2015). Go to v3.10
In short — summary by updatemystuff.com
DSP filter shape selection now works correctly when switching operation modes.
- Corrected DSP filter shape selection during mode transitions
Written from Icom's release notes, which are printed in full below.
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What's in this update
Major points of the Ver.2.21 update.
Improved DSP filter shape selection function to work correctly when changing the operation mode.
Please save the transceiver’s data contents to a CF card before starting the firmware update.
Never cut off power to the transceiver while updating the firmware.
Please read through Section 16 (UPDATING THE FIRMWARE) in the IC-7800 instruction manual, before downloading the new firmware.
Please also download Firmware update utility VER.1.0 ZIP (256KB) when updating the firmware using a LAN.
updatemystuff.com never hosts firmware files — always download from the official source.
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Create account & watchChanged since v2.20
- Major points of the Ver.2.21 update.
- Improved DSP filter shape selection function to work correctly when changing the operation mode.