Elecraft KX3 firmware `v1.76`

Elecraft · Released Nov 20, 2013 · First seen Sep 14, 2026

v1.76 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

Improves power output accuracy and adds 75-W calibration mode with KXPA100 support.

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

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MENU: PA MODE NOW HAS POWER-OUT CAL (P out CAL) SETTING: This enables 75-W power calibration in TUNE mode. When PWR is adjusted, and “P out CAL” mode is in effect, setting power to 75 watts shows “CAL 75W” on VFO B.
KXPA100 DRIVE POWER CAL DATA UTILIZED: If the KXPA100s per-band 75-W drive power has been saved at the factory, the KX3 will use it. If not, the KX3's own per-band amplifier drive data is used (if available). This data is created by setting PA MODE to Pout CAL (see above), then doing a TUNE on each band at 75 W.
IMPROVED POWER CONTROL. As the KX3s PWR control is adjusted, the KXPA100s output now more closely approximates the requested value.

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