Elecraft K3S firmware `v2.22`

Elecraft · Released Jul 29, 2008 · First seen Sep 14, 2026

v2.22 is not the latest firmware for the Elecraft K3S: the current version is v5.67 (January 22, 2019). Go to v5.67

In short — summary by updatemystuff.com

Channel scan no longer locks small encoders, user-defined settings renamed NORM1/2, flash initialization corrected.

Channel scan no longer locks out small encoders during or after scanning
User-defined values renamed from ALT1/2 to NORM1/2 to avoid confusion with the ALT switch
Flash memory initialization corrected to prevent spurious 'FPF LOAD PENDING' message

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

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CHANNEL SCAN no longer locks out small encoders (during scan or after stopping it).
USER-DEFINED ÒNORMÓ VALUES are now referred to as NORM1/2 rather than ALT1/2 to avoid confusion with the ÒALTÓ switch, which is unrelated to NORM.
FLASH MEMORY INITIALIZATION corrected to prevent spurious ÒFPF LOAD PENDINGÓ message. If this message does appear unexpectedly, tap any switch to see the flash read exception code, e.g. ÒFPF 1Ó. Report this to customer support.

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