microHAM DIGI 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 DIGI KEYER: the current version is v5.4 (March 5, 2008). Go to v5.4
In short — summary by updatemystuff.com
Added num pad mode switching and PA/LNA disable features; fixed WPM keyboard control in standalone mode.
- Num pad shortcuts added for mode switching
- Temporary PA/LNA PTT disable feature
- WPM keyboard control restored in standalone mode
Written from microHAM's release notes, which are printed in full below.
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What's in this update
- Implemented WinKey partial command 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 possibility 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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