Elecraft KX3 firmware `v1.26`

Elecraft · Released Oct 24, 2012 · First seen Sep 14, 2026

v1.26 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

Fixes receive audio loss on band changes, dual watch signal attenuation, and enhances Morse interface.

Receive audio dropout on band changes eliminated
Dual watch roofing filter configuration corrected
Audio-Morse interface improvements including automatic startup, character substitutions, and RX muting

Written from Elecraft's release notes, which are printed in full below.

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OCCASIONAL LOSS OF RECEIVE AUDIO ON BAND CHANGE: Fixed.
DUAL WATCH SIGNAL ATTENUATION: Fixed. The roofing filters were not set up correctly in all cases when DUAL RX was turned on/off.
AUDIO-MORSE CODE INTERFACE

Holding CWT switch on power-up turns on audio-Morse feedback and sets speed to 20 WPM. Other speeds can be selected using the SW TONE menu entry.
Switch activation truncates any audio-Morse output already in progress.
'R' substituted for '.' and 'T' substituted for 0 to speed up frequency reports, etc.
SWR reported after TUNE or ATU TUNE ("SWRnn.n").
RX now muted during all CW UI output.

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