[gta02] Re: DM2 GPS issue - CN

Willie Chen willie_chen at openmoko.com
Tue Apr 15 11:52:53 CEST 2008

Andy Green wrote:
> Somebody in the thread at some point said:
> | Today I improved our DM2 GPS performance. I go to the outside and 
> test it.
> | After DM2 GPS test gets the position, it needs 40-50 seconds.
> |
> | Miles, I give you gps_perf.patch to improve the performance.
> Nice work Willie it proves that suspicious buffering code is the
> problem.  We will beat on that code some more as soon as I can build it.
> -Andy

Hi all,

Our DM2 CNR test is also caused by suspicious buffering problem.
Today, I use R&S SMU200A to test CNR. It seems very good.
We can get PRN and C/N during 10 seconds.


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