The Federal Communications Commission (FCC or Commission) received a complaint from the Stafford
County, Virginia Sheriff’s Office (Sheriff) concerning interference to the Stafford County P25 public
safety radio communications system (Stafford County System) operating countywide on certain
exclusively licensed radio frequencies. In June 2024, Agents from the Columbia, Maryland Field Office
of the FCC’s Enforcement Bureau (Bureau) conducted an investigation and determined that the source of
interference to the Stafford County System was a radio transmitting signals in an attempt to selfauthenticate and thereby gain access to the Stafford County System. The signals were emanating from a
handheld Motorola APX7000 two-way radio that generated a unique identification code and had
apparently been illegally programmed to operate on Stafford County System’s licensed frequencies. The
investigation identified you—John T. Calhoun—as the radio’s operator. You stated to Sheriff
investigators that you had programmed the radio with the Stafford County System’s frequencies and that
you were operating the radio at the time it made a self-authentication transmission in an attempt to gain
access to the Stafford County System.
https://docs.fcc.gov/public/attachments/DOC-410850A1.pdf