#GPS-Trimble Scout
29-Jun-94 23:05:27
Sb: #135880-#GPS-Trimble Scout
Fm: Lanny R. Ream 73512,1163
To: Bill Westcott 76476,2615
Bill
When your Scout moves like that just tie its legs together.
Yeah, that is real pain. When that type of thing happens I just guessed it was
the dithered signal being changed so that the error is changing. For that
reason you can get a fix then watch it change, sometimes it will be stable for
several minutes then start changing. For me last Sunday evening on the Salmon
river, I got a reading, wrote it down, then just as I was going to turn it off
both the lat and lon started decreasing and ended up with both nearly .2
seconds lower in a couple minutes (its a narrow canyon with only 3 satellites
being read). That was a gross change equal to about 1200 and 800 feet
difference from the first reading!
The 55 degree positions and passing over anyone point twice a day would explain
a few things. Although, is it really physically possible for 12 satellites to
be in view and readable by some units as they claim in their ads, even 8 seems
like a physical impossibiltiy unless you were high in the Rockies (or Mt.
Everest).
Lanny