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[aprssig] THD7A GPS Question

Ian ik7565 at verizon.net
Sun Feb 17 17:28:20 UTC 2008


Be sure the etrex is set for NMEA sentences. Otherwise it will default to
the proprietary Garmin sentence.  Gotta be NMEA on both devices!

73, Ian N8IK


-----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 10:41 PM
To: TAPR APRS Mailing List
Subject: Re: [aprssig] THD7A GPS Question

Sam,

Not sure why you are seeing the blinking but not getting valid position
data.  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
>>>
>>> _______________________________________________
>>> aprssig mailing list
>>> aprssig at lists.tapr.org
>>> https://lists.tapr.org/cgi-bin/mailman/listinfo/aprssig
>>>
>>>
>>> _______________________________________________
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>>> https://lists.tapr.org/cgi-bin/mailman/listinfo/aprssig
>>>
>>>
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>>
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>>
> 
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