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[aprssig] Garmin GPS18 problem

Chris Kantarjiev cak at dimebank.com
Sun Apr 2 03:50:17 UTC 2006


I've got a GPS18LVC that has gone ... well, deaf. It still talks out
its serial line, I just updated it with the latest software from the
Garmin website. It responds fine to the serial port.

But it is weird about what it reports. For example:

$GPGGA,034736,0000.0000,N,00000.0000,E,0,00,,,M,,M,,*58
$GPGSV,3,1,11,12,00,000,00,13,00,000,00,14,00,000,00,15,00,000,00*7B
$GPGSV,3,2,11,16,00,000,00,17,00,000,00,18,00,000,00,19,00,000,00*78
$GPGSV,3,3,11,20,00,000,00,21,00,000,00,22,00,000,00*48
$GPRMC,034737,V,0000.0000,N,00000.0000,E,,,020406,006.6,W*77

It's telling me that it sees 11 satellites, but they're all at
0 azimuth/elevation? That seems just wrong.

Or is this what comes out when it doesn't have a fix, and I need
to be more patient? (Yes, it's clear that it doesn't have a fix yet.)

At least it knows what time it is. That seems like a good thing.

73 de chris K6DBG




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