Elecraft KX3
firmware v0.89
Elecraft · Released Apr 9, 2012 · First seen Sep 14, 2026
Source:
elecraft.com
v0.89 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 AM transmit capability and refines power control with 0.1-watt increments below 1 watt.
- AM transmit added
- Power control with 0.1-watt increments below 1 watt
- TX current limit increased
Written from Elecraft's release notes, which are printed in full below.
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What's in this update
MCU 0.89 / DSP 0.81
- PWR CONTROL PROVIDES 0.1-W INCREMENTS from 0.0-1.0 watts. Above this, increments are 0.2 W.
- AM TRANSMIT ADDED.
+ ACC2 IO MENU ENTRY now has the following menu settings: OFF, ON, PTT IN, LO=INH, HI=INH, TRNS ADR. Only the OFF, ON, and PTT IN selections are presently functional. + ALLOWED TX CURRENT AT 5 W INCREASED to cover higher bands and lower load impedance.
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