O.k. so there must be another reason.

Maybe its as well related to road_speed or road_class?
(Garmin may think that the lower the road_speed the higher the chance that there are buildings that obstruct GPS reception, or the lower the accuracy of the maps, cause minor roads are not that well mapped as major roads??).

The road_speed of my maps is only 0,1 and 2 -could that be the culprit?


Mark Burton wrote: 
Hi Felix,

BTW - thanks to those who have responded re performance of the current
value.

  
Strange that it's working for you. I'm allways on SVN latest wit hVista 
HCx, I even think that before the updates it worked better. Anyhow I now 
use the different value and am happy. Could it be that it's only not 
working when going slow, maybe it works at carspeeds?
    

I'd love to say that I cycle at car speeds but that, sadly, isn't true.
It works at my normal cycling speed of around 26kph.

Cheers,

Mark
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