St. Mary's County Amateur Radio Association

• WA3UMY Repeater System + Internet Repeater Linking Project (IRLP) information

• Your FCC at work

• ARRL Maryland/DC Section Page

• Repeater Database

• Near real time High Frequency Maximum Usable Frequency (MUF) predictions

• National Weather Service

• QRZ Callsign server

• Buckmaster's HamCall Server

• University of Arkansas Call Server

• QSL.net Ham Radio Homepages

• APRS database

• Early Radio History of the United States

• Jean Shepard's best ham radio story... Dayton Hamvention 1985 (audio file)

• National Weather Service Severe Weather Information

• AC6V's Amateur Radio and DX Reference Guide