This is an issue that has bugged me for a while. One feature I love with the FR235 is its ability to broadcast HR to another device via ANT+. This could be another Garmin unit or a phone for example.
For a few months I noticed an infuriating 'feature' that the broadcast keeps stopping. This means I either lose HR recording for my event or re-enable the broadcast. The broadcast will only last a few minutes at most. I have logged this with Garmin support and they sent a replacement FR235 out to me but the new one behaves in exactly the same way.
Just today, I noticed that if I open the Garmin Connect app on my (Samsung Galaxy S6) phone it will do a sync with the watch and as it finishes it disables the HR broadcast. I'm going to do some more investigation to switch off bluetooth from my watch to see how long the broadcast will go with no phone connection.
Anybody else had any experience with FR 235 broadcast?
Dom