While on campus today I decided to take a listen to see what I heard and sure enough, buzz saw sound. I suppose unless I get a radio that can decode this buzz, I won't be able to listen to them anymore. It's ashame because I liked listening to their comms while I was on campus (especially when they're right in front of me). I never heard anything about new radios for Drexel Security. I know maintenance and facilities converted to Nextel years ago though. There is another channel that Drexel Security uses (451 something) as a secondary channel. I'll have to find that frequency and see if it this buzz saw crap is on that as well.