Elecraft KX3 firmware v1.79

Elecraft · Released Nov 26, 2013 · First seen Sep 14, 2026

Source: elecraft.com

v1.79 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

TX GAIN displays KXPA100 drive power for 75W; per-band calibration improved.

  • KXPA100 per-band power calibration improved
  • TX GAIN menu displays drive power in watts needed for 75W output
  • Calibration source shown with 'A' (Amp) or 'T' (Transceiver) prefix

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

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What's in this update

MCU 1.79 / DSP 1.27

  • KXPA100 PER-BAND POWER CALIBRATION IMPROVED.
  • KXPA100 DRIVE CAL DATA SHOWN BY TX GAIN MENU ENTRY: If the PA MOD​E menu entry is set to ON or Pout CAL, and PWR is set above 10 W, the TX GAIN menu entry will show drive power in watts needed to hit 75 W at the​ KXPA100 amp . A letter 'A' or 'T' prefixes the drive power value shown, depending on whether the source of the calibrated drive value is the Amp or the Transceiver.

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Other versions for this product

See the full firmware history for the KX3