Here (Holland) the police use an encoded system called C2000. Its not scannable by any commercial scanners. The C2000 is based on the TETRA (Terrestrial Trunked Radio) system. I was wondering if there is any way I CAN listen into their conversations? Btw, C2000 is a collection of encrypted communications the actual broadcasting system is called T2000, dispatch is called M2000 and pager/beeper system is called P2000.

I'm only interested in T2000.

Not too sure if I'm qualified to speak about European systems, but someone must be. Any takers?

Two things...

Firstly, I'm not sure about the legality in your locale, but here in the United States it is illegal to attempt to monitor encrypted or scrambled frequencies if you're not a user of the system. I would recommend governing yourself according to your own opinions on the risk vs. the reward.

Secondly, the chances of you successfully decrypting their signals so you can monitor them are next to none. Even if you have the key, you wouldn't be authorized by the trunking computer to allow for decryption on your reciever. You might get lucky and have the signal break your squelch gate, but without the computer authorizing it through a tone-out, I'd say that's almost as unlikely as decrypting the signal if/when you did recieve it. This particular conundrum is true of all digital trunking systems, if I recall correctly. Without authorization from the dispatch computer, you'll be listening to dead air.

Okay, with that out of the way, I'll tell you that I've read over at the Radio Reference Forums (http://www.radioreference.com/forums/index.php) that there are indeed digital scanners out there capable of recieving the broadcasts, but expect to pay a pretty penny for them at this point. Digital signal is pretty new stuff at this point, and digital capable scanners are currently not something that is cheap. You might look into used equipment on Ebay or Amazon or something if you're a gambling man, but for several hundred dollars, I don't think I'd like to purchase a reciever without some sort of guarantee that I feel would be honored if I needed it.

However, given what I just read about the TETRA infrastructure over at the Wiki, I think the likelihood of you being able to actually monitor communications on that particular system is going to be a great way to waste your time, effort, and expendable income. If you want to go the illegal route, I suppose you could conceivably procure the equipment, but again, you run into the fact that the infrastructure is designed to keep unauthorized persons from being able to access the system.

So honestly, I think you're barking up the wrong tree, but I could be wrong.