Elecraft K3S
firmware v4.39
Elecraft · Released Jun 15, 2011 · First seen Sep 14, 2026
Source:
elecraft.com
v4.39 is not the latest firmware for the Elecraft K3S: the current version is v5.67 (January 22, 2019). Go to v5.67
What's in this update
MCU 4.39 / DSP 2.73
- NEW AF MIXER COMBINATIONS (CONFIG: L-MIX-R):
Added AB A, B BA, B B, B A, A A. These may be useful for ÒSO2VÓ operation and various DX/contest scenarios.
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