microHAM MK2R
firmware v3.4
microHAM · Released Mar 5, 2008 · First seen Sep 9, 2026
Source:
microham.com
v3.4 is not the latest firmware for the microHAM MK2R: the current version is v7.19 (October 8, 2020). Go to v7.19
In short — summary by updatemystuff.com
PTT and audio settings now update from router, FSK messages auto-generate PTT
- PTT1/2 and audio switching settings now update when changed via router
- FSK message playback automatically generates PTT
- QSK mode uses keying compensation to control CW output locking
Written from microHAM's release notes, which are printed in full below.
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What's in this update
- bug fixed: PTT1/2 settings, audio switching settings was updated on keyer mode change but was not updated when there was changed from router.
- Now PTT is automatically generated when FSK message is played even if no F10 or foot switch was pressed.
- In QSK mode the signal INHIBIT is generated for the duration defined by Keying Compensation parameter instead of PTT Lead. During this time the CW output is locked. Parameter "Keying Compensation" is sended to WinKey only in QSK mode.
- Additional CW lock is activated after tx focus change. It stays active for a time while WinKey CW output is active. This allows to change focus without generating the undesired CW singnal on just focused radio.
- Now WinKey command 0x0A (Clear Buffer) drops Simulated command 0x18 PTT too.
- Added limited support to WinKey buffered commands 0x1D 0x00 and 0x1D 0x01 (Buffered Port Control) introduced since WK2 v21.
It means that keyer will change focus in the right time but after focus change it will send, as always, the command 0x0a (Clear Buffer).
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