Iphone signal testing with code
Closest cell tower 1 Km, iPhone 3G, Wi-fi mode, iOS 4.0, Orange network.<p>With device held gently by edges:<p>signal avg 90 (outdoors, line of sight to cell tower, same altitude)
signal avg 8O (indoors, line of sight to cell tower, same altitude)
signal avg 60 (indoors, no line of sight to cell tower, same altitude)
signal avg 4O (outdoors, no line of sight to cell tower, ground level)<p>With device cradled in hand a average decrease of signal by 20 in all cases and whatever finger configuration.<p>Turning 3G on causes a average decrease of signal by 5 in all cases.<p>The connection strength bars shows 5 bars in all cases.<p>Absolute minimum experienced : 19, absolute maximum 94.<p>The application used to test gets the signal strength from private calls to apple’s CoreTelephony framework, in a effort to help the iphone signal testing going on share a common base i am providing the application to anyone, please let me know what are the results of your tests and feel free to contrite to the code on github.<p>The application is named  VAFieldTest , it’s code is under a open source license and can be found at http://github.com/valexa/VAFieldTest , you need Xcode and a iPhone developer account to compile and run it.