My HIIt studio is starting to use myzone. Can I use my Garmin heart rate monitor strap and sync to their myzone system so the trainer can monitor my ‘efforts’ or so I need to purchase a myzone belt?
This is why pairing mode is needed. When in pairing mode, devices "broadcast" instead of sending to an address so they can "find" the other devices. Once paired, each device will address data specifically to the device to which it needs to go instead of broadcasting.
I'm not sure about BLE, but ANT+ sensors, such as HR monitors, do not have a special pairing mode. They always broadcast, and do not even know it anything on the other side is listening. The pairing process you do on the receiving end is solely for the purpose of knowing which sensor to use when multiple sensors are around.
Great point. In this case, I believe the MyZone HRM uses ANT+ to connect to third party receivers. The MyZone receivers probably use ANT+, but with addressing being controlled by the admin interface and device ID, there's no way to pair a third party HRM to a MyZone receiver.