I've been browsing around here and following some links, but I'm having a hard time getting started on scanning. Can someone either write or link to a FAQ on what you need to do, buy, and know for scanning for the purpose of countermeasures?
For example, I gather that you need to start with where you live and drive, then figure out what system the police use. I see links to sites with this info, but it's hard to interpret. Analog, digital, trunking, frequencies.... What's the best and/or simplest site for this info?
Next I guess you need to figure out what scanner to buy based on the above? Not trivial due to the considerable expense of the better scanners I think.
Then, maybe some info on how to operate/listen, or maybe that becomes self-evident once you have the scanner? For example, I gather that one needs to somehow update the frequencies or something as you move around?
I suspect a lot of this info is around here, but it's hard to figure it out and find it when you don't know where to start. An A to Z guide would be great and probably even save the experts a lot of time replying to individual queries.