Loss of altitude data whilst tracking

Whilst tracking a route, my 66S (Sorry - could not find a forum for the 66 series in general) lost altitude data...

Any ideas what would cause this, any solutions to avoid it.. and finally - any suggestions as to correcting the GPX after creation according to the location data?

If this is not the right forum - if you could point me in the right direction - thanks!

0 spreadys over 3 years ago in reply to twolpert

I don't think its calibration problems either! - Just an easy way for them to reply!!!

Current settings:
Auto Calibration = Once
Barometer Mode = Variable Elevation
Pressure Trending - Save when Power on

If I went for Continuous for Auto Calibration, would this affect battery life dramatically?

Thanks for all assistance so far..

0 twolpert over 3 years ago in reply to spreadys

I don't know. It has to use some power, but I do not know how much. Personally, I use the same settings you have now.

0 atlas_cached over 3 years ago

That does not look like calibration issue, looks like the GPSr simply stopped recording elevation data updates for a period of time, then when it 'caught up', the value suddenly dropped!