I've been going round and round with Garmin Tech support regarding some flakiness I'm experiencing with HR recording on an Oregon 550 . They, of course, have resorted to the knee-jerk "blame the non-Garmin" software approach even though, in the GPX fles on the unit (100% Garmin created), there are dropouts where no HR data appears. And that occurs despite the HR being shown on a handlebar-mounted Foretrex at the same time.
But that brings up a question.
The corresponding .gpx files I get from TF have an HR value of 255 at those dropout points. So, I am really just curious, is that how TF is handling the non-existent Garmin data?
KF