M4R Firmware Revision History

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M4R v1.14 - 23 January 2012

Fixed a problem wherein a sudden, very strong signal (e.g. transmitter turned on right next to receiver) yielded noisy audio until the antennas were moved.

M4R v1.13 - 10 January 2012

Corrected baseband filter width in 2 ch mode, for improved adjacent channel rejection.

M4R v1.11 - 15 September 2011

Added factory diagnostic serial commands.

M4R v1.10 - 09 June 2011

Fixed computational bug causing subtle defects in the audio noise floor.

M4R v1.03 - 24 Februrary 2011

First production release.