I've just got FR 965. Great watch, lovely screen. I've tested today a bike ride. Since I forgot my HRM strap, I've decided to try HR Broadcasting from the watch to my bike computer Garmin 1030 plus. It connected fine using ant+ and worked, however I experienced very frequent dropouts, to the point where sometimes it would drop like 5-6 times in a row. It would always come back, and sometimes it would last for like 10 min without drop out. Such a shame, because it seems like nice addition.
Used sensors:
Garmin Varia Ant+
Favero Assioma power meter dual Ant+
Bike computer: Garmin Edge 1030 plus
All of the hardware has latest firmware and software installed.
I've tried to re-pair\turn off and on to no avail.
Here are the graps: