SDR USAGE question

Ok, so I have been reading about how you can get “Software Defined Radio” two way transceiver or just RX hooked to an Android phone. Question - after the initial APP download to use the SDR, do you need cell or WIFI to see/use/ listen to the SDR? OR at that point you just are using it (the Android phone) basically as the screen?

Sorry Admin if this is off topic…feel free to delete it…

If the software runs then you don’t need anything to carry data. Totally self contained

Don’t forget that the software is only part of what you need. You will also need a dongle and an antenna to receive the signals.

Thanks so much? Was thinking of my Go Bag, wondering if I’ll be able to listen if I don’t have cell service. Could even use a phone that I have upgraded from that has no service…:hugs::grinning:

O, ya, … Lol I found some on Amazon and eBay, etc that almost seem 2 good to be true, cheap looking…