I found your app while looking for a way to determine what GSM frequency my ATT 8300 is using at my home. (Voice reception is terrible, but a tower is less than a mile away. I am thinking about installing an active repeater and wanted to avoid getting a dual band device). The app installed and appears to run beautifully.
Can you tell me if I can find the frequency currently in use by my device from the info you are presenting in the app? Maybe from the channel number?
I am not a programmer, but it looks to me like the RadioInfo class might tell us?
Thanks for the public service <grin>!!