On Sun, 28 May 2006 17:11:18 GMT, Korbin Dallas
wrote:

If the system in question is an APCO P-25 system then encryption is built
into the system. All they need to do is program all radios with a Key.
As far as I know P-25 cant exchange keys over the air, a flay in my
opinion.

P25 is *NOT* inherently encrypted. It can be, the provision is there
in the spec, but many P25 systems are bought without the (relatively
expensive) encryption modules.

Go to the database at Radio Reference
http://www.radioreference.com/modules.php?name=RR and see how many
P25 systems have talkgroups listed as D, not E.

Korbin Dallas wrote:

If the system in question is an APCO P-25 system then encryption is built
into the system. All they need to do is program all radios with a Key.

This is wrong. The radio need an encryption module and/or an expensive
software option to enable encryption.