Elecraft KX3
firmware v2.15
Elecraft · Released Aug 15, 2014 · First seen Sep 14, 2026
Source:
elecraft.com
v2.15 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
CW-in-SSB respects QSK delay with external keying, 2-meter entry from other bands, and TX power restored on limited bands.
- CW-in-SSB applies QSK delay setting with external CW keying
- 2-meter frequencies can be entered from other bands (120-168 MHz range)
- TX power restored on bands that previously limited to 5W
Written from Elecraft's release notes, which are printed in full below.
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What's in this update
MCU 2.15 / DSP 1.30
- CW-IN-SSB IMPROVEMENT: The operators specified CW QSK delay is now used during CW-in-SSB, even with external CW keying. (This was already working with the internal keyer.)
- 2-M DIRECT FREQUENCY ENTRY FROM OTHER BANDS: Range is 120-168 MHz. Note: Sensitivity falls off as you move out of the 144-148 MHz range.
- 2-M TX FREQUENCY RANGE LIMITED: 144-148 MHz (144-146 in some countries).
- INCREASE IN ALLOWED TX CURRENT: Allows full-power output on some bands where previously a drop to 5 watts had been observed (with an external 12-14 V supply).
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