Casey Wilson wrote:
"Newps" wrote in message
...

I bought the GPS on ebay. It's an Altina GBT-708. I turn it on and throw
it up on the top of the panel. By the time I turn on bluetooth and fire up
the Navgps software, about 20-30 seconds, the GPS has already gotten it's
fix. I paid $75 for the GPS. Don't bother with the one Dell is selling,
it is horribly overpriced and just a rebadged version of somebody elses.
Laterally my Altina has the exact same accuracy as my panel mount GX-55 and
my Garmin 96C before I sold it. Vertically it consistently reports me being
about 150 feet lower than the Garmin. The NavGPS software compensates for
this so the readout of my altitude is always within 25 feet of my actual
altitude.

snip

Hmmm, this begs a few questions. Does the NavGPS software compensate by
letting you enter the latest reported altimeter setting - like dialing it
into the Kohlsman window?

I set the software to the altimeter, not the altimeter setting.


When you say "within 25 feer of my actual
altitude" are you saying within 25 feet of the altimeter?

Yes.


Otherwise, how
would you know your actual altitude?
This sounds like a neat package. Can you gie more information about
the Bluetooth/NavGPS/display etc.?

See for yourself. I tried all the others I could find. This was by far
the best.

http://www.flynavgps.com/