Powertap download data completely off



velomanct

New Member
Dec 21, 2003
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About halfway through my ride, in my downloaded data (looking at the excel file), all the data goes crazy. Like 66237 watts and 130mph and it goes back and forth like that the rest of the ride, making no sense whatsoever.

During my ride, the power cpu display was normal and accurate the entire ride. So it doesn't seem that the torque tube blew or anything.


Why would it download data that was completely different than my ride? All of this started about halfway through, the first half of downloaded data was completely correct.


I just hope my next ride goes back to normal, or I won't be able to view my rides anymore!? :eek:

44.482 1730 2.8 721
44.503 2051 279.9 86173
44.524 645 2.7 263
44.545 1319 3.2 632
44.566 4070 3.9 2356
44.587 718 2.7 291
44.608 2528 4.3 1647
44.629 3013 2.5 1133
44.65 3496 3.5 1818
44.671 3213 10.5 5057
44.692 1406 4.9 1042
44.713 1912 27.6 7913
44.734 1143 4.9 846
44.755 887 3.8 513
44.776 1142 131.9 22620
44.797 886 6.7 897
44.818 888 8.3 1107
44.839 1146 3.9 669
44.86 1913 8.3 2387
44.881 2418 3.9 1400
44.902 2409 101.5 36704
 

daveryanwyoming

Well-Known Member
Oct 3, 2006
3,857
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Yeah that's strange, especially since the CPU data seemed to be recorded correctly. Sounds like the file got corrupted, have you tried reloading it, possibly with a different load tool like PowerAgent if you normally use WKO+ or maybe Golden Cheetah?

I'd probably start by clearing the memory and perhaps power cycling the PT CPU by pulling the battery before your next ride and then see what happens.

Does the peak power recorded in your PT CPU show realistic peak values or the out of range values shown in your downloaded file?

-Dave
 

velomanct

New Member
Dec 21, 2003
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Peak readings on the CPU were legit, from the first half of the ride where I did a sprint.

Yeah somehow the file got corrupted halfway through. CPU and hub seem to be fine.

I am using one of the old software versions to upload the data. Then I close the program and analyze the file myself in excel.
 

velomanct

New Member
Dec 21, 2003
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Everything went back to normal without doing anything. Next ride download was correct.