Re: garmin rebate



miso@xxxxxxxxx wrote:

Here is my issue. When you hike steep or rugged terrain, i.e. a path
where you can't make decent forward progress, a virtual compass is
pretty worthless since the differential readings (perhaps sequential
is a better word) are not far enough apart. I'd like the compass not
to be fussy. It really wouldn't have to be all the accurate for hiking,
but I've seen the Garmin compass in action on older models and it just
won't do.

while your concerned is well founded it is not based on how the GPS actually computes direction. It is not done with sequential readings but is computed from the Doppler shift from the satellite data. Only one reading is needed but there has to be a velocity component that is not zero or nearly zero.

Dale

Get general GPS information at:
http://www.gpsinformation.net/


--
_ _ Dale DePriest
/`) _ // http://users.cwnet.com/dalede
o/_/ (_(_X_(` For GPS and GPS/PDAs
.

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