I’ve got some questions for any techie geeks out there.
So far, I’m loving the new Garmin 310XT with my wireless SRM. The watch serves as my head unit (one less thing to buy from SRM). I just have a couple power-related questions:
1.) The 310XT gives the average power reading MINUS the zeros, correct? I.e., The avg power is already normalized? It looks like it (or else I’ve magically gotten stronger… I’m guessing the former).
2.) When I upload the Garmin data to Training Peaks, the average power is lower than it was on Garmin Connect (about 7watts over 53 miles, for example). Is it possible that Training Peaks is providing power that is NOT normalized, while Garmin 310XT is already normalizing it??
Fill me in, por favor.
Thanks!
I use a 705 with an SRM.
I can set the average power (AP) to include or not include zero’s.
Normalized power (NP) is different - its a formula that Coggan/Hunter came up with. Some computers will calculate it and other cool numbers (TSS, IF…).
In races with fairly steady power but some coasting - I think average power without zeros is close to normalized power. In many cases though - they will be quite different.
If Garmin does not include zeros and Training Peaks (TP) does include zero’s then obviously TP would show lower AP.
Garmin doesn’t use NP at all.
Good luck!
Now my questions - with your SRM - what is your offset on the 310XT - do you know the range of offset the 310 can handle (you can check this by measuring the offset in calibration mode and then pushing on the pedal and watching the number change). How much does your offset drift with different temps?
Dave
Amy,
have you checked with TP about point 2 ? I have the same issue.
THnx
m