Elecraft K3S
firmware v4.83
Elecraft · Released Feb 8, 2014 · First seen Sep 14, 2026
Source:
elecraft.com
v4.83 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
KAT500 automatic retuning and FSK-D transmit power control fixes.
- Automatic KAT500 retuning as VFO changes
- Fixed FSK-D transmit power control during operation
Written from Elecraft's release notes, which are printed in full below.
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What's in this update
MCU 4.83 / DSP 2.82
- FSK-D (RTTY) POWER-CONTROL BUG FIX: Power output can now be increased while in transmit mode when using FSK-D.
- KAT500 ATU SUPPORT: Automatic retuning of KAT500 LC network as K3 VFO is moved. VFO frequency messages are sent via the auxBus. Sends VFO A frequency except in SPLIT mode, where VFO B frequency is sent.
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