Elecraft KX2 firmware v2.94

Elecraft · Released Dec 3, 2018 · First seen Sep 14, 2026

Source: elecraft.com

v2.94 is not the latest firmware for the Elecraft KX2: the current version is v3.02 (April 8, 2022). Go to v3.02

In short — summary by updatemystuff.com

Added SWR command; improved AM mode TX power control.

  • SW command returns most recent SWR reading
  • AM TX power output maintained closer to target

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

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What's in this update

MCU 2.94 / DSP 1.52

  • AM MODE TX POWER CONTROL IMPROVED: AM mode power output level is now maintained closer to the targ​et.
  • ADDED SWR READ COMMAND: "SW;" returns the most recent SWR reading in transmit or TUNE mode, e.g. "SW023;" for an SWR of 2.3:1. The value is not automatically updated on band ​change; update always occurs on any transmit. Max value returned is "SW99;" (SWR = 99.9:1).

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Other versions for this product

See the full firmware history for the KX2