Bit of a weird one. Had some people knock on the door tonight to let me know that someone else is transmitting on the same frequency as us. And with some very colourful language.. It also said something along the lines that photos are being taken or something.. One of the people recorded part of it to play to me, and it sounded like a text to speech engine of sorts. I initially thought it might have been an idiot doing it from his car as a once-off, but when another group of people came in to tell me an hour later, I figured it was more likely coming from another house. I went for a bit of a drive to see if I could hear where the signal was strongest, but by that time it wasn't being transmitted. So it might be a bit of a cat and mouse game, but I was just wondering if anyone has any suggestions on a good way to try and narrow down where the signal may be coming from? Some sort of an omni-directional antenna??