numbers

I have been reading some posts on the various PD/FD/EMS "10-" codes, Denver District IDs, and other Code #'s. Thank you all who posted to the links listed below. As a curious listener, I have figured out most of these, but I am wondering if anyone out there can direct me to a comprehensive...

I have a few WPLN4121BR 6 bay chargers and several WPLN4114AR single unit chargers. Do these chargers have serial numbers or am I wasting my time looking for them?

ive become interested in hunting down numbers stations that play over the shortwave frequencies. ive managed to capture a few, like the backwards music station, and a spanish lady speaking numbers through internet controlled radios. what id like to do is by a cheap receiver (anywhere from 20-50...

I was wondering if somebody could explain the new Site Numbers for M.A.R.C.S.. Also, why are some in parenethesis? Thanks.

I listen to camden county a lot and I don't know what district numbers are for what town. I'd appreciate it if someone could post this information. Thanks