1. neela77777's Avatar
    I am looking to write an app that accesses the main cell radio in a smart phone -- to transmit on allowed frequencies. Do you know if an app can gain access to the radio, to use it as needed? Thank you.
    02-18-2016 10:28 AM
  2. ManiacJoe's Avatar
    Are you talking about something like phone to phone, without the towers, something like a walkie-talkie?
    02-18-2016 11:57 AM
  3. neela77777's Avatar
    02-18-2016 12:58 PM
  4. ManiacJoe's Avatar
    Some handsets used to do that. "Push to talk" was the feature.
    I would expect that the feature would require its own radio frequencies so that it did not interfere with the normal phone-to-tower communication.
    02-18-2016 06:59 PM
  5. neela77777's Avatar
    I think the current PTT apps like Zello use the internet to carry the signal around. I am just wondering if I could use the RF antenna on the phone itself to directly communicate with another phone, say, a half-a-mile or a mile away. Is the RF antenna even accessible to an app running on IOS or Android? I think using the correct frequency and avoiding the frequency used by the phone service provider is a matter of detail.
    02-18-2016 08:52 PM

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