Elecraft KX3
firmware v2.70
Elecraft · Released Oct 26, 2016 · First seen Sep 14, 2026
Source:
elecraft.com
v2.70 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
Scanning below 1.0 MHz now works properly, and host commands are blocked during transmit to prevent audio issues.
- Scanning below 1.0 MHz fixed
- DT, FR, FT commands blocked in transmit mode
Written from Elecraft's release notes, which are printed in full below.
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What's in this update
MCU 2.70 / DSP 1.49
- SCANNING WORKS WITH FREQUENCIES BELOW 1.0 MHz. Previously, scanning would stall in this case.
- DT, FR, and FT HOST COMMANDS DISALLOWED IN TX MODE: Previously, these commands (data submode, unsplit, and split) could be sent to the K3 during transmit from software applications. This could sometimes cause side effects such as muting of transmit audio in DATA modes.
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