Elecraft K3S firmware `v1.94`

Elecraft · Released May 12, 2008 · First seen Sep 14, 2026

v1.94 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

VOX and voice monitor improved; squelch and RF control reconfigured.

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

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VOX: Increased sensitivity. Typical VOX GN settings now ~30-50.
VOICE MONITOR: Eliminated ÒscratchyÓ artifacts with compression set to high levels.
FM DEVIATION ADJUSTABLE: Use CONFIG: FM DEV menu entry (default: 5.0 kHz).
Flash memory driver improved to prevent occasional receive dropouts, ÒERR PL1Ó, and ÒFPF LOAD PENDINGÓ messages.
XMIT SWITCH IN MENU: Tapping XMIT while in menu correctly starts/ends transmit.
PASSBAND SHIFT BELOW Ò0.00Ó CORRECTED: The SHIFT control no longer allows continued rotation below 0.00. (This was occurring only with sidetone pitch < 500 Hz.)
SQUELCH/RF GAIN CONTROL CHANGES: By default, the RF/SQL concentric pots control main and subreceiver RF gain, and squelch is controlled by two CONFIG menu entries (SQ MAIN and SQ SUB). But setting SQ MAIN to "=SUB POT" assigns SUB RF/SQL pot to both main and sub squelch, and in this case, the main RF/SQL pot controls both main and sub RF gain. Setting SQ MAIN back to a numeric value restores the default assignments. Note: Squelch applies only to FM mode at present.
USE LAST SEGMENT OF S-METER (S9+60) IF NOT IN SMTR PK MODE.
USE TEXT DEC THRESHOLD FOR AUTO-SPOT.
SMOOTHED OUT NOISY CWT REPRESENTATION DURING CW COPY.

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