Does anyone know if it’s possible to broadcast HR from either the garmy 935 or the 745 and if so how. Cheers dudes 
I don’t recommend doing this in cold weather
Cheers buddy for the info dude nice 
one 
Cheers buddy. Appreciate the response
I use this function a lot with a 945, but HR straps don’t work well for me (I suspect I have the wrong kind of sweat) and the optical HR seems to be reliable and accurate enough (advantages of thin, pallid skin?).
I broadcast to phone (Bluetooth) or laptop (ant+ dongle) for TR workouts, and to an edge 530 for outdoor workouts or rides.
Not sure if you can do this on 935/745 but I’ve set the activity button as a hotkey for HR broadcast, so I just press and hold to get to the broadcast screen instead of having to dig through the menus.
Oh yes, I should mention as well that some people use this to broadcast during a watch activity for example if running on a treadmill or riding an exercise bike that can show HR but won’t push an activity back to Garmin. I don’t use this function as I’m always on TR or using the edge 530, and both of those push activity metrics back to the watch for physio true-up, so training status still updates. If you are doing other things, then dcrainmaker has some good instructions especially for using Bluetooth or ant+
Ace info buddy. Mostly I use verity sense optical HR monitor which works really well. I just sometimes like to use different stuff just for a change 
Ace guidance buddy. Cheers for your help
I have a Garmin Instinct Solar and during trainer rides the HR seems really good. However, in broadcast mode it sucks, but if you “broadcast during activity” it’s excellent.
I’ve just got a Garmin 530 so will be testing the Instinct broadcasting options with that and see what happens.