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                               ENFORCEMENT BUREAU

                                 WESTERN REGION

                              San Francisco Office

                        5653 Stoneridge Drive, Ste. 105

                           Pleasanton, CA 94588-8543

                                 (925) 416-9717

                                October 11, 2012

   San Francisco International Airport

   San Francisco, CA 94128

                         NOTICE OF UNLICENSED OPERATION

   Case Number: EB-FIELDWR-12-00003284 Document Number: W201332960001

   The San Francisco Office, in response to a complaint, investigated an
   allegation that an unlicensed radio station was operating at the  San
   Francisco International Airport on frequency 464.700 MHz. On July 12,
   2012, agents from this office confirmed by direction finding techniques
   that radio signals on frequency 464.700 MHz  were emanating from N. Access
   Rd. San Francisco, California, at the San Francisco International Airport.
   The Commission's records show that a license that previously authorized
   operation of an  industrial, business and conventional two way radio
   station (call sign WPKM688)  at this location on 464.700 MHz  in San
   Francisco, California, expired on April 28, 2012, and was cancelled on
   June 30, 2012. 

   You are hereby warned that operation of radio transmitting equipment
   without a valid radio station authorization constitutes a violation of the
   Federal laws cited above and could subject the operator of this illegal
   operation to severe penalties, including, but not limited to, substantial
   monetary forfeitures, in rem arrest action against the offending radio
   equipment, and criminal sanctions including imprisonment. (See 47 U.S.C.
   S:S: 401, 501, 503 and 510.)


   You have ten (10) days from the date of this notice to respond with any
   evidence that you have authority to operate granted by the FCC. Your
   response should be sent to the address in the letterhead and reference the
   listed case and document number. Under the Privacy Act of 1974, 5 U.S.C.
   S: 552a(e)(3), we are informing you that the Commission's staff will use
   all relevant material information before it to determine what, if any,
   enforcement action is required to ensure your compliance with FCC Rules.
   This will include any information that you disclose in your reply.

   You may contact this office if you have any questions.

   David K. Hartshorn

   District Director

   San Francisco  Office

   Western Region

   Enforcement Bureau


   Excerpts from the Communications Act of 1934, As Amended

   Enforcement Bureau, "Inspection Fact Sheet," March 2005