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[aprssig] THD7A GPS Question

Robert Kirk isobar at bcpl.net
Sun Feb 17 18:52:45 UTC 2008


Sam, I've forgotten the details after all  this time, but I had a similar 
problem with the THD7A and a new Garmin GPSMAP 76c. The radio would accept 
my old Garmin III+, but not the new one.

It turns out it was a Garmin problem. According to one of their techs it 
was a glitch in their software. They had to replace the GPS under warranty 
for another problem anyway, and there was no further THD7 problem with the 
new one. I don't know if it's applicable to you, but I'd try to borrow 
another GPS to see if the problem goes away.

Bob Kirk
N3OZB

At 08:45 PM 2/16/2008, you wrote:
>After a long lapse I am trying to get my THD7A setup with a GPS. However,
>something doesnt seem to be working. I am using a Garmin ETREX set to NMEA
>output. I can see the GPS sentences when I plug it into the serial port on
>my laptop. I connected the ETREX to a cable with a subminiature plug then
>into the GPS jack on the THD7A. I expected to see the POS have the GPS lat
>and long but all I get are all zeros. Manual does not say much of anything
>about the GPS port. Anyone have suggestion on what I could try to get it
>working. What am I missing? Something stupid?
>
>Sam K3BY





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