[aprssig] iphone gps woes

[Chris Moulding]

Wes,

If you can get through to the right person (try asking for Network 
Optimisation for a start) I'm sure they will help.

Years ago I was in charge of Network Optimisation for a UK GSM operator 
covering Northern England and Scotland and we always found detailed 
customer reports invaluable. The survey team drove through a trouble 
spot in seconds, the customer was there all the time.

The problem the customer had then (and probably now) was trying to get 
through the switchboard to us!

The problem with the wrong sector is not unusual. You might find that 
all sectors on that site are reversed or out by 120 degrees. Could be an 
error entering the data into the system or the Tx and Rx feeders are 
swapped over to the wrong sector. Happens more often than you might think!

73,

Chris, G4HYG

Chris Moulding
Cross Country Wireless (2009) Ltd
7 Thirlmere Grove, Bolton, Lancs, BL4 0QB, UK
Tel/fax: +44(0)1204 410626
Mobile:  +44(0)7752 391908
Website: http://www.crosscountrywireless.net
Company number 6780346 registered in England and Wales  



Wes Johnston, AI4PX wrote:
> Now comes the fun part.  Looking into the first approximation of my 
> Iphone's position, I'm left to assume that the phone company who owns 
> the local tower (Farmers Telephone Coop) has programmed the wrong 
> sector into this particular installation.  It's kinda funny.  Now how 
> do I tell them about it?  I'm expecting lots of dumb looks.   I 
> plotted my position on google maps, the reported first approximation 
> and the location of the cell tower.  I'm exactly 180° on the other 
> side of my reported position.  The range is very close to being right 
> on my location.. if the azimuth was correct it would literally plot me 
> 100 meters from my actual location.  I'm pretty impressed for a time 
> difference of arrival measurement.
>  
> This also gets me wondering.... if the phone companies are smart 
> enough to figure out the location of 100 phones who all drop a call at 
> the crest of the same hill and figure out that they might need to 
> change the tilt of one of the sector antennas.  Nawww... they get to 
> claim an extra minute on you while you reestablish the call.  ;-)
>
> Wes
> ---
> Hitler gave great speeches too!
> ------------------------------------------------------------------------
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