Just updated the firmware on my GT31 to http://mtbest.net/GT31_FW_V1.4B0712T.ZIP
The new GT32 unit has Tom writing some software I am trying to understand the outcome of. I understand that the Fourier program is designed for using two 31s or a 32.
Displays the data in a nice table and gives an easy view of each run. Also has a google earth button to take you to the run in google earth with coloured sections to show the speed.




When I run my latest file through it (using a single 31) I get a slightly higher speed than realspeed 40.029 vs 39.85.
Is the program only more acccurate when using two units or is it designed to test the quality of the data?

Only a guess Lao, but maybe the difference is the way, the 3 readings are averaged in the 2 programs.

Tom's program calculates the average speed in a different way (Fourier v's Cubic Spline) and uses a more optimistic speed correction factor. It is not the method that is used by the WGPSSRC for records at this stage. We decided to use a more conservative correction for maximum confidence.

Thanks Sailquik.
I do like the GE feature though. Saves a kml file of the run you are looking at. Found it very useful for comparing best runs at a spot.

It is easy to save your file as a .gpx and open it in GE in RealSpeed as well. Just a couple more clicks.

GPS-Results has a one click 'display in GE' which works great:

Here is my 'GPS-Speedskiing' from Mt Hotham last week (There was some snow - really)

Looks like you were restricted to the man made stuff Andrew?

Select to expand quote

mr love said...

Looks like you were restricted to the man made stuff Andrew?

Yep.That's pretty much all there was that weekend.
Better today but runs still limited.