Hi Guys, A few years back I found a few web sites about this competitions in the US where you go and track a radio signal, like "radio hunting", I can not remember the proper name for it. I am interested in info about the transmitter and receiver for these systems. I am looking for some kind of system where I would have a beacon and a detector that would be able to detect strength of signal. I do not need that much range, 5 meters would be plenty although more would be ok. The aim is to get a small detector that will give an analogue output proportional to the strength of the signal being transmitted but also be directional i.e. if moved around will detect where the stronger signal is coming from. The TX also needs to be small. Thanks, Best regards Luis -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist