Re: GPS receiver with Raw Data Measurements



I have been doing all of the above with a Garmin GPS II+ and an ETREX Legend, as well as the GPSMAP 72C. You will need to GOOGLE for Dennis Milbert and check out "garbin" to log the data and "gl2rnx" for RINEX conversion or you can check out Antonio Galan and get "async" to log the data and "gar2rnx" to do the conversion to RINEX format. There is also a package called Gringo the performs all of the logging and conversion. You then need post-processing software to generate the accuracy you are looking for. This is all explained in the above articles.
Have fun.
glion@xxxxxxxxxxxx wrote:
Hello Everyone!
I am trying to find a cheap GPS receiver, that will send to my
listening PC the actual measurements from the satellites
(phase measurements, pseudorange etc).
Specifically, i am interested in using the GPS measurements to calculate my own GPS position.
I imagine a serial/usb device, that would send the data in ASCII
or smt format, so that i can easily utilize them
I tried to find something in the web, but i was able only to find
hack solutions (take a normal receiver, hack it down to isolate the signals,
connect them via a complicated hardware way to something in the PC)
Does anybody has something in mind?
Is there a product, i can plug in my PC, and have raw measurements on my screen?
MTIA
Grigoris Lionis

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