From the railscan yahoogroup. Has anyone heard any P-25 or encryption in their area? I haven't picked up anything other then plain old analog in my neck of the woods.
3a. CSX encrypting...
Posted by: "Bill Davis"
Date: Sun Aug 10, 2008 1:35 pm ((PDT))
nope...you're wrong. I'm the author of the post in question and FOUR of us saw/heard it when it happened. First off they were on the RF&P sub DISPATCH channel, AAR 20, the radio tech came on saying "Ok, test Phase 3" which they then went into APCO buzz on the analog scanners, and on our 996 went clear as a bell under P25 mode. Then the next thing he said was "OK, test Phase 3B," then the analog went to a loud straight BUZZ and the 996 went into ENC for encryption, and nothing was heard, no
chirp no nothing. However, that wasn't the kicker....
Q438 had to stop and walk his train due to some sort of defect detector malfunction, then he had to walk his train. The same channel went ENC right after her notified the dispatcher and about 30 minutes worth of communications ensued with which nothing was hearable.
So, yes, they are encrypting down here and they are SIMULCASTING on the narrow band frequencies in P25 mode while still, mostly, on analog on the regular AAR 96 road channel and AAR 20 dispatch channel.