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[aprssig] THD7A GPS Question

Robert Bruninga bruninga at usna.edu
Tue Feb 19 18:02:04 UTC 2008


> Not sure why you are seeing the blinking 
> but not getting valid position data. 

I have seen this mode depending on the start up sequence of the
Radio or the GPS.  Change the sequence and try again, and it
usually fixes it.
Bob, WB4APR



 In my setup with the D7 and a Garmin 
> GPSMap 60CSx if the GPS does not have a valid lock there is 
> no blinking, it does a short beep each time the GPS 
> transmits.  Once the GPS gets a good lock the beep stops and 
> the position shows up and the decimal point and the minute 
> symbols blink with each update.  Maybe someone with an ETREX
can help.
> 
> Ron - K0QVF
> 
> Sam Guccione wrote:
> > Ron you identified part of the problem. I was looking for 
> data on the tip
> > not the ring. I am now seeing data on the ring of th plug. 
> I inserted the
> > plug into the D7 GPS port and still do not see lat long but 
> the degree
> > symbol, the decimal point and the minute symbol are all 
> blinking once a
> > second. I guess this means the GPS receiver is sending data 
> to the port. I
> > will let this set for a while to see if it takes some 
> lockup time for the D7
> > to collect data.
> > 
> > Thanks. Sam
> > 
> > -----Original Message-----
> > From: aprssig-bounces at lists.tapr.org
> > [mailto:aprssig-bounces at lists.tapr.org]On Behalf Of Ron
Tonneson
> > Sent: Saturday, February 16, 2008 8:30 PM
> > To: TAPR APRS Mailing List
> > Subject: Re: [aprssig] THD7A GPS Question
> > 
> > 
> > Data should be on the ring, not the tip.  The tip is output 
> from the radio
> > to the GPS, ring is data from the GPS to the
> > radio.
> > 
> > Ron - K0QVF
> > 
> > Sam Guccione wrote:
> >> I have not checked for voltage at tip but did check with 
> serial port of
> >> laptop that there is data on tip.
> >>
> >> Definitely NOT in PC port.
> >>
> >> -----Original Message-----
> >> From: aprssig-bounces at lists.tapr.org
> >> [mailto:aprssig-bounces at lists.tapr.org]On Behalf Of Ron
Tonneson
> >> Sent: Saturday, February 16, 2008 8:15 PM
> >> To: TAPR APRS Mailing List
> >> Subject: Re: [aprssig] THD7A GPS Question
> >>
> >>
> >> Have you verified that there is data on the ring of the 
> 2.5 mm plug?  Put
> > a
> >> voltmeter from ground (the sleeve) to the
> >> ring.  You should see activity once a second.  There 
> should be no voltage
> > on
> >> the tip.  Also make sure you are in the GPS
> >> port, not the PC port.
> >>
> >> Ron - K0QVF
> >>
> >> Sam Guccione wrote:
> >>> Thank Jason, but I have this setting set at NMEA. That is
not the
> > problem.
> >>> Thanks anyway. Sam
> >>>
> >>> -----Original Message-----
> >>> From: aprssig-bounces at lists.tapr.org
> >>> [mailto:aprssig-bounces at lists.tapr.org]On Behalf Of Jason
KG4WSV
> >>> Sent: Saturday, February 16, 2008 7:54 PM
> >>> To: TAPR APRS Mailing List
> >>> Subject: Re: [aprssig] THD7A GPS Question
> >>>
> >>>
> >>> You have to tell the D7 you have a GPS.  On the APRS 
> menu, check GPS.
> >>> Values are something like none/NMEA/NMEA96 (the latter 
> for 9600 baud).
> >>>  It defaults to none.
> >>>
> >>> -Jason
> >>> kg4wsv
> >>>
> >>> _______________________________________________
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> >>>
> >>>
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> >>>
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> >>
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> >>
> >>
> > 
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