[gta02] GPS performance issues on GTA02v5

Neng-Yu Tu (Tony Tu) tony at openmoko.com
Thu Apr 24 05:30:19 CEST 2008

Daniel Willmann ??:
> Hello,
> I think I might have found out why recent GPS performance has been so
> crappy. First of all the GPS on my GTA02v5 does work, but it's much
> worse than what I was used to. I have checked with openmoko-agpsui from
> http://people.openmoko.org/olv/tmp/ and on average the S/N ratio is
> about 5-7dB worse on my 2v5 compared to Stefan's 2v4.

Could you switch the another GPS antenna see if make difference, it 
sound like the connector or cable was damaged.

We been test about 50 pcs GTA02 DVT units for C/N ratio, it's about no 
difference between v4 and v5. So, it's must be something in the signal 
path was not correct.

Tony Tu

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