Magnus,
You may want to take a look at:
http://sourceforge.net/projects/osgps/files/SoftOSGPS/SoftOSGPS2.0/
Regards, Doug, K4CLE
Connected by DROID on Verizon Wireless
-----Original message-----
From: Magnus Danielson <[email protected]>
To: [email protected]
Sent: Wed, Nov 30, 2011 00:18:40 GMT+00:00
Subject: Re: [time-nuts] SDR GPS
On 24/11/11 12:19, Poul-Henning Kamp wrote:
Has any of you played with this:
http://www.sparkfun.com/products/8238
I have. I managed to log data, write code to use FFT correlation search
and then lock-up to a good strong bird and decode the sub-code.
One has to look in a few books to "get it" but it's fun. Much harder to
real-time decode, but I didn't spend quality time on achieving an
efficient digital RF section.
The dataformat is inefficient with only 2 out of 8 bits used, so one
might consider stuffing the bits, but it would be a trivial fix.
Cheers,
Magnus
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