Re: Talking to a 'GPS mouse'
- From: Jack Erbes <jackerbes@xxxxxxxxxxxx>
- Date: Sun, 29 May 2005 09:04:14 -0400
Richard Owlett wrote:
<snip>
I suspect I did not ask quite the 'right' question ;}
I was already aware of NMEA sentences -- even if I once spelled it NEMA 'cause of my drip proof enclosure days.
I'm getting the impression that a typical GPS 'mouse' receiver, once powered up, just sits there spitting out however many NMEA sentences manufacturer specified and remains quiet until the next fix available.
Is there any other control except for sending it a "Query Sentence" as described on http://pcptpp030.psychologie.uni-regensburg.de/trafficresearch/NMEA0183/
?
Am I closer to question I should be asking?
Specific GPS receivers may or may not have any configuration options. The baud rate configuration is part of the serial port setup, beyond that you would a receiver manufactured to allow reconfiguration and a utility software, typically provided by the receiver's maker, to make the changes in settings.
The Garmin GPS 18 OEM/LVC/PC (the non-USB models) are an example of one that can be configured by the user, the details on that are in the tech specs here:
http://www.garmin.com/manuals/GPS18_TechnicalSpecification.pdf
You haven't said what make and model you have or are interested in but the inexpensive mouse type GPS receivers I have used or looked into were not further configurable. I have an Altina GGM-308 that works well, is WAAS enabled, and is very flexible in use because of the number of different DC adapters/connecting cables offered for it. But you take what you get as far as outputs.
Jack
-- Jack Erbes in Ellsworth, Maine, USA - jackerbes at adelphia dot net (also receiving email at jacker at midmaine.com) .
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