microHAM CW KEYER firmware v1.7

microHAM · Released Dec 16, 2004 · First seen Sep 9, 2026

Source: microham.com

v1.7 is not the latest firmware for the microHAM CW KEYER: the current version is v5.4 (March 5, 2008). Go to v5.4

In short — summary by updatemystuff.com

Inverted FSK for TT-OMNI radios, fixes for side tone interference and Winkey buffer handling.

  • Added inverted FSK support for TT-OMNI V/VI radios
  • Fixed side tone causing data disturbance at high baud rates
  • Winkey buffer handling delegated to host application

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

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What's in this update

  • Support for inverted FSK (Dedicated to use with TT-OMNI​ V or TT-OMNI VI).
  • bug fixed: When side tone was turned on, the data from radio to computer was sporadically disturbed, especially on high baud rates like a 57600 bps.
  • bug fixed: Data from computer to Winkey are routed without protection against Winkey buffer overflow. Only host ap​plication is responsible for this protection. It prevents too late response to message abort.

Use with router v1.13.

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Other versions for this product

See the full firmware history for the CW KEYER