microHAM micro KEYER II firmware v6.6

microHAM · Released Nov 4, 2016 · First seen Sep 9, 2026

Source: microham.com

v6.6 is not the latest firmware for the microHAM micro KEYER II: the current version is v6.21 (October 8, 2020). Go to v6.21

In short — summary by updatemystuff.com

Fixed bug where automatic frequency reporting was ignored on newer Icom radios with CI-V transceive enabled.

  • Operating frequency auto-reporting now works on newer Icom models
  • Bug only manifested when CI-V transceive mode was enabled
  • Affected IC-7100, IC-7300, IC-7600, IC-7700, IC-7800, IC-7850, IC-7851

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

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What's in this update

  • bug fixed: Automatica​lly reported operating frequency was ignored on Icoms with new firmware (when CI-V transceive was set to on):

IC-7100(fw ​v1.10(E4)+), IC-7300, IC-7600(fw v2.00+), IC-7700(fw v2.10+), IC-7800(fw v3.10+), IC-7850, IC-7851

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Other versions for this product

See the full firmware history for the micro KEYER II