Elecraft KX3
firmware v0.83
Elecraft · Released Mar 28, 2012 · First seen Sep 14, 2026
Source:
elecraft.com
v0.83 is not the latest firmware for the Elecraft KX3: the current version is v3.02 (April 8, 2022). Go to v3.02
In short — summary by updatemystuff.com
Adds DATA-A and AFSK-A modes, FM squelch, and TX noise gate; increases TX current to 3A with external power.
- DATA-A and AFSK-A transmission modes working
- FM squelch filtering added
- TX noise gate implemented
Written from Elecraft's release notes, which are printed in full below.
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What's in this update
MCU 0.83 / DSP 0.78
- WATTMETER menu parameter range extended down to 70.
- MAX TX CURRENT INCREASED TO 3 A when running from external supply. (Note: We assume an external supply is in use if the key-down voltage is > 12.5 V. With internal batteries, voltage will be far lower than this on key-down even at 1.5 amps, so this is a safe criteria.)
- TEMPORARY ACC2 IO MENU COMMAND: For now this has just ON and OFF settings, for factory test.
- FM SQUELCH added.
- DUAL WATCH WORKS IN MONO MODE (internal speaker). Stereo is still recommended, but mono will work when needed.
- TX NOISE GATE implemented (TX GATE menu entry).
- DATA-A and AFSK-A modes now working.
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