microHAM micro KEYER II firmware v3.1

microHAM · Released Jul 4, 2008 · First seen Sep 9, 2026

Source: microham.com

v3.1 is not the latest firmware for the microHAM micro KEYER II: the current version is v6.21 (October 8, 2020). Go to v6.21

What's in this update

  • Keyer locks PT​T1/2 and CW when SM reports "no TX antenna".
  • Keyer repo​rts sleep mode status to SM.

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Other versions for this product

See the full firmware history for the micro KEYER II