Elecraft K3S
firmware v4.48
Elecraft · Released Jan 13, 2012 · First seen Sep 14, 2026
Source:
elecraft.com
v4.48 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
K3/0 units now skip self-tests for non-populated hardware, enabling faster power-up.
- K3/0 support
- Tests skipped for non-populated hardware
- Faster power-up
Written from Elecraft's release notes, which are printed in full below.
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What's in this update
- K3/0 SUPPORT: If the unit is designated as a K3/0 (via an EEPROM ID value), power-on self-tests and run-time tests associated with non- populated hardware are skipped. This allows the unit to power up much more quickly for use with RemoteRig.
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