Yes
Yes, if your radio app picks up FM. Some phone carriers block this ability for non pay apps, but they rent radios for I think $5
No, they do not broadcast the signal through the internet. It is only via radio waves, and therefore the app will not work.
I don't see why it wouldn't work.
Fyi, they do have a few radios there that you can borrow if need be.
No. My husband has that and because it's a short band radio station it will not work.
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