Usually, there is a blue circle showing on my Vista HCx when the
position quality is bad. As more satellites are being located, it
grows smaller and vanishes when the positioning is good.
Recently I have observed that a large circle is showing permanently,
even when the positioning is very good (+-3 m). In the GPS forum it
was mentioned that the behaviour of the circle depends on the map, so
I'm asking the question here, too.
Has anybody observed this behaviour? Is there anything during map
generation that may influence it?
I have observed this behaviour some days ago too. Erroneously I had no
valid map, but only the 'test-map:all-elements' on my etrex. While
biking around, I detected that the precision cycle always has an
constatnt radius of 260m.
I assume this is the precision, where the recalculation started in the
maps generated with older mkgmap versions. So I assume there is some
setting in the gmapsupp.img which sets the 'precision' of the map data.
The higher value from map precision and actual precision gets displayed
at the circle.
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