Dropping heart rate belt
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@owend said in Dropping heart rate belt:
@Hari-Seldon yep I’m on the latest - 3.21.14
Have you tried using another chest strap just to see if there’s something odd between your sensor and Run? I currently use a Polar H10 or a Suunto Smart Sensor with no issues
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@Hari-Seldon thanks for the suggestion, but I don’t have a different one to test, and not about to spend on one when it works fine with other devices.
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Does that happen with the chest HRM strap, or does it also happen with the one on the watch itself?
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@Jose-Luis-Merino-Parra I’ve only noticed when using the chest strap as I almost always use that.
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@owend I have no issues with a Suunto SmartSensor belt. I do not think this is the watch. How new is the belt? Battery? The belt straps for me do not last more than 1 year at most. They wear out. The sensor is not a problem but the belts will stop sending accurate HR. You can check R-R values in Runalyzer, that would give you some indication if there are problems with the belts.
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@Brad_Olwin It’s a year old, rechargable battery, and it has been fully charged prior to one of the times I saw this issue. As I said, when I ride I dual record to ELEMNT computer which has good hr data from the same strap for the full ride, only the watch is missing data.
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@owend The Suunto watches calculate HR from R-R data, I do not know how the ELEMNT does receive HR. Check in Runalyzer, I suspect the belt is the problem. In colder weather tech shirts can cause static that can interfere with the transmission as well.
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@Brad_Olwin right so I created a couple of Runalyze accounts and imported the Suunto Run fit file into one, and the Wahoo ROAM fit file into the other. Both were taking data from the same strap during the same activity as I dual recorded.
This is the ROAM activity:
This is the Suunto Run activity:
This looks really odd. It doesn’t appear that the Suunto is missing the data at the end, as the same pattern for the final 21-27km of the ROAM graph matches the 14-20km section from the Suunto graph. It looks more like the 4-11km section from the ROAM is missing from the Suunto graph.
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@owend Check the R-R data not HR, the HR is calculated from R-R. You will be able to see how noisy the R-R data are.
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@Brad_Olwin ok this is what that graph shows for the Suunto activity. I don’t see the same graph on the Wahoo ROAM fit file:
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@owend looks good
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@owend well, it happened to me too today, the activity lasted 2 hours and 20 minutes but the heart rate graph is missing the last 20 minutes or so.
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@Hari-Seldon yeah it’s really odd. I’ve reported it to support and given them fit files from my Suunto and Wahoo ROAM for them to compare. On this mornings ride, I checked my Suunto screen every 15-20 mins and it always matched what I saw on my Wahoo screen, right up to the end of the ride. However the synced activity once I’d finished, is missing hr data for the last 50 mins. Which leads me to think it’s more an issue with the watch writing the data to the fit file than any potential connectivity issue with the hr strap.
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@owend It was a recovery session spent entirely in Z1 and I noticed that the time reported in Zone 1 corresponds to the total time of the session, so it seems to be just a “graphic” problem
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@Hari-Seldon yeah I guess it’s possible that it’s a bug with the app rather than the watch. But without a way to grab the fit file direct from the watch without using the app, there’s no way to confirm that. Exporting the fit file from the app and analysing elsewhere shows the same lack of data at the end of the workout. If you haven’t already could you submit a support ticket for it so they don’t just see it as an isolated case?
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@owend said in Dropping heart rate belt:
If you haven’t already could you submit a support ticket for it so they don’t just see it as an isolated case?
Absolutely!
