Technically, yes. That's what the software modem does. Data to sounds, then the other side does the opposite.
Unfortunately, I'm not familiar with most radio protocols (yet). Does the tool you built translate nostr events to analogue signals and back?
My hope is that I can send nostr events to a local relay over TCP/IP from my phone without any extra hardware and your relay can receive that nostr event directly from my relay over radio. Thanks to negentropy, we might be able to cut out the ISP without needing to attach radio equipment directly to our phones.
You will need to charge other relays for events that you send them over radio, because spectrum is a scarce resource.. nostr:npub1gzuushllat7pet0ccv9yuhygvc8ldeyhrgxuwg744dn5khnpk3gs3ea5ds, does negentropy require a lot of bandwidth?