UPDATE: 12/11/06
Adelphia cable service was bought out by Comcast. Over the weekend things changed, no wonder I had connectivity issues. The link has been updated.
Click to listen
If that link's not working I may be broadcasting with the BCD396T at This link
In my experience RealPlayer seems to open the links the most reliably.
Loudoun County Fire/Rescue and Sheriff's OfficeAbout Loudoun County
Fairfax County Fire/Rescue and PoliceAbout Fairfax County
Virginia State Police
Military Air
Best when there is a Combat Air Patrol in place because the President is spending the weekend at Camp David
D.C. Metropolitan Police Department
Prince William Co Fire/Rescue and Police
(if the signal is good, which it hasn't since they made "improvements")
MontgomeryCo, MD police and fire
Frederick Co. MD police and fire (if the signal is good)
Frederick Co. VA and Winchester police and fire
Fauquier Fire/Rescue and Sheriff (if the signal is good, otherwise FD dispatch only)
Dulles International Airport inbound and outbound planes
Metroplitan Washington Airport Authority Police and Fire Services
United Airlines Services at IAD
Those in bold are usually what's being scanned. The others can be programmed by REQUEST
Audio Samples
Multi-Jurisdiction pursuit of a wanted subject
Loudoun Sheriff
Loudoun Fire/Rescue
Fairfax Fire/Rescue
Fairfax Police
Virginia State Police
Virginia State Police sample 2
Combat Air Patrol
Excel spreadsheet of Washington, D.C. area federal trunked radio systems
freqhopping