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HR Broadcasting stops working randomly

Hello,
i'm using the HR Broadcasting function of my Forerunner 735XT to send my Hearth Rate to my Garmin EDGE 510 bike computer.
I tried "Broadcasting during Activity" and also Enabling Broadcasting out ouf the HR Widget (as written here http://www8.garmin.com/manuals/webhelp/forerunner735/EN-US/GUID-0C4E7DFB-E1C4-4EA8-885B-4DF88B3CD341.html)
At the start of the ride, my EDGE 510 receives the Hearth Rate from my 735XT as well as speed/cadence from my Wahoo Blue SC sensor.
But then during the ride, it looses connection to my watch and is not longer showing any hearth rate information (while speed/candence is fine).
If i disable and reenable HR broadcasting on the Forerunner, it takes just 1-2 seconds until the EDGE starts receiving HR again.
On a 65k (2h 15min) this happend more than 10 times.
( Tried a different HR sensor (scosche rhythm+) -> No outages)

This is really annoying. Anyone experience the same problems?
  • Former Member
    0 Former Member over 6 years ago
    When you no longer see heart rate on the Edge does your Forerunner still show that it is broadcasting or is the Forerunner on a different screen?

    Can you post a link to an activity where the heart rate dropped out?
  • When you no longer see heart rate on the Edge does your Forerunner still show that it is broadcasting or is the Forerunner on a different screen?

    Can you post a link to an activity where the heart rate dropped out?


    As i understand i have two ways to broadcast the HR via ANT+

    1. Menu -> Settings -> Hearth Rate Sensor -> Broadcast during Activity = Auto (or similiar, using german interface)
    This will activate HR broadcasting (little hearth icon appears) during any activity as long the activity is running. I can switch through my different pages of my activity.



    2. HR Widget, Hold UP pressed, Select "Broadcast Hearth Rate" (or similiar). Here i must stay on this page for continuously HR boadcasting.


    Most time i used method one. But with the disadvantage of power off / on the whole swatch to get HR broadcasting running again

    Yesterday i used method two, because i simple can end "Broadcast Hearth Rate" and restart it again (but even no real solution on a road bike)

    My activity from yesterday (all (12) gaps in the HR graph is loosing HR broadcast signal)

    https://connect.garmin.com/modern/activity/1725967492
  • Did you receive any smart notifications on your FR735XT while you were broadcasting HR data with it?
  • Did you receive any smart notifications on your FR735XT while you were broadcasting HR data with it?


    Good Questions, i had my mobile phone with me, but i do not have any Alarms for any kind of mart notifications (except incoming calls).
    But this problem also exists if i don't take my mobile phone on a ride (no mobile -> no smart notifications)
  • Former Member
    0 Former Member over 6 years ago
    Thanks for providing the requested information. I have not been able to recreate this issue, but we are continuing to investigate. I would recommend that you reach out to your locale product support team so that they can investigate this further directly with you.
  • already did.
    Switched my Edge Device from 510 to 520.
    Will give it an other try tomorrow morning
  • No issues yesterday on two 40k rides (Home to Work to Home).
    But the disconnects mostly happend during group rides with many other ANT+ devices.
    Next group ride is planned for next week
  • Problem still exists. It looks like that if there is any other ANT+ sensor in near distance, the 735xt randomly stops sending.
    Yesterday i did a 110k bike tour with my Scosche Rhythm+ HR Sensor without ANY outage.
    Next tour will be on wednesday, here i will try the 235WHR from a friend.
    German garmin support needs more than 2 weeks to respond on a mail
  • It becomes funny now:
    Send my FR735 to garmin support and instandly receive a brand new FR735 within 3 days.
    Replacement reason says "Software error".
    Checked the new FR735, same issue after 10min.
    Had a call with the german support hotline, send the new FR735 to support again.

    Bet 10US$ that i get an other new FR735xt with the same issue.. (it must be a software bug, so don't replace the hardware)
  • 735XT HR Broadcast fail

    Hello,
    i'm using the HR Broadcasting function of my Forerunner 735XT to send my Hearth Rate to my Garmin EDGE 510 bike computer.
    I tried "Broadcasting during Activity" and also Enabling Broadcasting out ouf the HR Widget (as written here http://www8.garmin.com/manuals/webhelp/forerunner735/EN-US/GUID-0C4E7DFB-E1C4-4EA8-885B-4DF88B3CD341.html)
    At the start of the ride, my EDGE 510 receives the Hearth Rate from my 735XT as well as speed/cadence from my Wahoo Blue SC sensor.
    But then during the ride, it looses connection to my watch and is not longer showing any hearth rate information (while speed/candence is fine).
    If i disable and reenable HR broadcasting on the Forerunner, it takes just 1-2 seconds until the EDGE starts receiving HR again.
    On a 65k (2h 15min) this happend more than 10 times.
    ( Tried a different HR sensor (scosche rhythm+) -> No outages)

    This is really annoying. Anyone experience the same problems?


    I have been having the same problem as well, even Garmin watch to Garmin bike computer. I bought the 735XT so I would not need a chest strap. Unfortunately, this strategy failed.