Elecraft K3S firmware v2.02

Elecraft · Released Jun 7, 2008 · First seen Sep 14, 2026

Source: elecraft.com

v2.02 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 now works correctly in CW mode; memory-based channel hopping for 60m works as described.

  • VOX now works correctly in CW mode
  • Memory-based channel hopping for 60m now works as described

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

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What's in this update

  • VOX SWITCH NOW FUNCTIONS CORRECTLY IN CW MODE. When VOX is OFF in CW mode, transmit must be enabled vi​a XMIT or PTT rather than just hitting the key.
  • MEMORY-BASED CHANNEL HOPPING (for 60 m in particular): This now works as described in the K3 Owners Manual (rev C., page 37). You can manually hop with VFO A, or scan channels. First, store the desired channels in adjacent memories.

For example, you might set up 60-m channels in memories 61-65 (5330.5 kHz, etc.).

Next, change the first label character in each of these memories to an asterisk (*) as described in the manual. (The first memory above and below your channel-hop group must either have no aster​isk in their first label position, or be on different bands.) Finally, tap M->V and select any one of these memories.

Manual rotation of VFO A and scanning will then use only the memories in the group.

To return to normal operation, use any of the VFO rate switches, or change bands.

NOTE: A future revision will allow FM channel hopping based on squelch activity.

SCANNING TIP: On a noisy band, scanning may pause too often.

Try using a narrower filter, turning the preamp off, or backing down RF GAIN until the scan starts.

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