Elecraft KX2 firmware v2.66

Elecraft · Released Jun 24, 2016 · First seen Sep 14, 2026

Source: elecraft.com

v2.66 is not the latest firmware for the Elecraft KX2: the current version is v3.02 (April 8, 2022). Go to v3.02

What's in this update

MCU 2.66 / DSP 1.48

  • DSP BUG FIXES: Eliminates​ the “ERR DSP” and “ERR DSE” error conditions that appeared​ on a small number of KX2s, typically at power-up.

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Other versions for this product

See the full firmware history for the KX2