Building a communication device

Hey guys - I was wondering if anyone could point me to any instructables or other how-to's that teach you how to build a device that can communicate over the air over a given frequency? I've searched around a bunch but I can't really find anything. (I'm also completely stupid when it comes to this kind of stuff.)

netgoo20003 years ago

I have seen a youtube video from someone going to Maker Faire where they built a homemade texting devices (like walkie talkies but for texting) and it did transmit over radio waves or the like. It could have been Ben Keck.

sanand73 years ago
even i am searching for that can we two join
LasVegas10 years ago
Well... There's this instructable: Build a computer controlled radio transmitter

That does exactly what you're asking. Another device that can communicate over the air, over a given range of frequencies, would be your mouth.