Tracking a radio signal

[Mike]

Thanks for the help guys.

Just a short info blurb:

Multiple low powered beacons with no synchronization between them laid out in a random pattern. For this proof of concept, maybe three. For the real world application, maybe thirty thousand ()... lets focus on the proof of concept first.

I'll begin looking into some kind of doppler system. I saw the ham radio guy's competitions and stuff but I can't have anything backpack size with the huge antennas like I saw in those pictures. Unfortunately a google of "doppler radio direction robotics" doesn't have much, except for some guy on a forum named Chief Delphi

Not sure what you're referring to Alan. Nothing is really set in stone. The main requirements are an ability to mass produce, cheaply and efficiently, a large amount of beacons and then be able to find them when scattered in a wide area (proof of concept: square mile; production: entire town).