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[aprssig] Garmin GPS35

Andrew Rich vk4tec at tech-software.net
Wed Sep 28 18:12:26 UTC 2005


It seesm to know what date it is 

it looks like a GPS aquiring sats 

leave it for abit 


On Wednesday 28 September 2005 22:27, VE7GDH wrote:
> Stan N0YXV  wrote on Sept 27 2005
> 
> > Here is an output from one of my sessions.
> >
> > $GPGGA,001446,0000.0000,N,00000.0000,W,0,00,,,M,,M,,*48
> > $GPRMC,001448,V,0000.0000,N,00000.0000,W,000.0,000.0,280905,007.2,W,N*09
> 
> What is powering the GPS35? Is the supply voltage within spec? I
> would presume that because it at least outputting NMEA that it isn't
> a power supply problem, but... ?
> 
> The nitty-gritty is that your GPS doesn't have a valid position. The "V" in
> the $GPRMC sentence tells you this. The "00" after the longitude in the
> $GPGGA sentence tells you that it sees zero satellites. Could the GPS "see 
> the sky" when you captured this data from the GPS? If it could see a 
> substantial portion of the sky, you probably have an internal problem with 
> the GPS... i.e. it could be broken. If it really isn't functional, you could 
> use it for a paper weight or take it apart and see if it could be fixed, but 
> it would be somewhat unlikely that you would see any visual clues inside. 
> However, if it just isn't working, you don't have anything to lose.
> 
> I don't know if you would learn more from the $GPGSV sentence, but
> your GPS35 doesn't seem to be outputting that sentence.
> 
> I'm sure there are lots of sites that help interpret NMEA sentences, but
> I did a search and came across this one:
> http://home.mira.net/~gnb/gps/nmea.html#gpgga
> 
> 73 es cul - Keith VE7GDH
> --
> "I may be lost, but I know exactly where I am!"
> 
> 
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> 
> 

-- 
------------------------------------
Andrew Rich VK4TEC
Satellite Ground Station for PCSAT2
www.tech-software.net
vk4tec at tech-software.net




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