I just noticed this, so I thought I'd post it in case someone else ran into the same thing.
I use the Bkool trainer and simulator, with ANT+ HR strap. Usually on a laptop with ANT+ dongle, in which case it all works fine.
Sometimes, when I'm rushed, I use the Android app on the phone instead (it has ANT+ built in, fwiw). I noticed it consistently stopped recording HR a few minutes into the session when doing that. So I discovered that the trainer actually supports BTLE/BT 4.0 as well, I just didn't know. So the phone app uses BTLE instead of ANT+ to talk to the trainer, but ANT+ for the HR strap. And apparently using both BTLE and ANT+ at the same time is too much for the radio receivers in the phone. So it drops my HR signals.
Damn computers. I should get rollers and listen to the radio instead.
I use the Bkool trainer and simulator, with ANT+ HR strap. Usually on a laptop with ANT+ dongle, in which case it all works fine.
Sometimes, when I'm rushed, I use the Android app on the phone instead (it has ANT+ built in, fwiw). I noticed it consistently stopped recording HR a few minutes into the session when doing that. So I discovered that the trainer actually supports BTLE/BT 4.0 as well, I just didn't know. So the phone app uses BTLE instead of ANT+ to talk to the trainer, but ANT+ for the HR strap. And apparently using both BTLE and ANT+ at the same time is too much for the radio receivers in the phone. So it drops my HR signals.
Damn computers. I should get rollers and listen to the radio instead.