Originally Posted by xmastree
Having used the built-in receiver for a while now, I'm still not too happy with it.
Most of the time it's fine, but other times it just loses the signal and you get this effect:
I've been using an Orange M700 (HTC 3600 [Trinity]) WM5 AKU3 for almost a year now with the same GPS chip as in the Sedna (HTC P6500) with no ill effects. Only downside is it is a bit slow to lock, sometimes 60 seconds, but once locked is fine. Initially it was in a screen sucker cradle but my cig socket for the power is mounted in a centre console level with the back of the drivers seat so the coiled cable was constantly springing out so I switched to putting the unit in the drinks holder way BELOW and underneath the dashboard in my personal car where you would not expect good signal but it is not a problem in all driving conditions.
We recently bought 35 Sednas and I have 3 deployed now in a live pilot not using cradles and only one suffers. His company car has a metallised screen (to cut UV radiation, a Picasso) which also stops the GPS signal. There is a small area of the screen not screened just behind the rearview mirror where we have the existing external GPS receiver that was used to supply his previous PDA cradle that did not have GPS. We will be re-fitting this to a new cradle due to be fitted in the next few days. The other 2 units have no problems, but are different cars.
I took my base build sedna on the road over the weekend in my own car without UV screening and it was as good as the M700. I even put it on the passenger seat and on the floor, still good as gold.
So I think it is your car that is the problem, you'll have to use an external GPS antenna, unless ............. My previous trial P6500 was WM6.0 but that also worked fine in my same car as now, the new ones are WM6.1, but I doubt it.
Regards QuickGPS 7 day refresh, now I have the P6500 back, it is a waste of time, you only need to sync once in the UK after a hard reset. QuickGPS was not available on the M700 so I couldn't comment before. I synced my base build P6500 2 months ago once, used it in the image to be burned on the 35 new ones and they've all picked up fine in practice.