Elecraft K3S
firmware v2.16
Elecraft · Released Jul 9, 2008 · First seen Sep 14, 2026
Source:
elecraft.com
v2.16 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
Fixed reversed antenna selections; sub receiver NB/NR/NOTCH controls now working
- Antenna selections corrected; may require reconfiguration
- Sub receiver NB/NR/NOTCH filters now operational
- Sub receiver controls linked to main when VFO IND=NO
Written from Elecraft's release notes, which are printed in full below.
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What's in this update
- SUB RCVR AUX ANT SELECTIONS: The ANT=ATU and ANT=BNC selections were reversed. You may need to set this up again (CONFIG: KXV3).
- SUB RCVR CONTROLS LINKED TO MAIN RCVR WHEN VFO IND=NO:
BAND, PRE, ATTN, NB, NR, NOTCH. Attempting to change these (using BSET) results in "=MAIN" flashed on VFO B. Once we allow VFO IND=YES, these controls will have individual settings in BSET mode.
- SUB RCVR NB/NR/NOTCH WORKING: Setting up any of these functions for the main receiver sets them up for the sub receiver as well.
- RIT/XIT OFFSET NOT CLEARED WHEN SUB RCVR TURNED ON.
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