microHAM CW KEYER firmware v4.0

microHAM · Released Sep 5, 2007 · First seen Sep 9, 2026

Source: microham.com

v4.0 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

WinKey parser prevents inadequate settings and controls WPM; unified PTT selection; new numpad features and bug fixes

  • WinKey parser prevents inadequate settings and controls WPM
  • PTT selection unified across all PTT sources
  • Numpad shortcuts for mode switching and PA/LNA PTT control

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

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What's in this update

  • Implemented WinKey partial co​mmand parser to prevent computer to send WinKey inadequate settings and to have WPM under control.
  • PTT selection (PTT1/PTT2/noPTT) was unified for all PTT sources (foot switch, serial PTT, WinKey)
  • PTT delay was coupled with WinKey PTT Lead.
  • Added pos​sibility to switch mode on num pad (special keys: *0,*1,*2,*3,*4)
  • Added possibility to temporarily disable PA/LNA PTT (special key *9)
  • bug fixed: WPM control from PS2 keyboard/numpad didn't work in standalone mode.

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Other versions for this product

See the full firmware history for the CW KEYER