AFCCE News & Events
May 06

May 20 **VIRTUAL** Luncheon Meeting

AM Skywave Signal Research In Support of Carrier Synchronization

John Kean
Consulting Engineer
Cavell Mertz & Associates, Inc.
Topic Summary:

AM broadcasters with nighttime operation have the ability to synchronize their transmitter with a GPS frequency standard, which may improve reception quality by minimizing signal beats with other cochannel stations. The NRSC's AM Improvement Working Group is developing a hardware solution and hopes that stations will decide to upgrade. John Kean and Dave Hershberger, members of AIWG, are completing a model to determine the potential benefit of carrier synchronization for any station. Research for the model required computer analysis as well as core AM signal propagation data collected in 1934, which will be discussed. Audio samples prepared by computer simulation will be used in a listener test to finalize the model parameters. Samples of the skywave reception will be played for the members.


Virtual Luncheon meetings are open only to AFCCE members and their guests.  There is no cost for this meeting and AFCCE hopes you can attend during your lunch hour.  AFCCE Members may register to attend the luncheon meeting below.  All times are Eastern.


Zoom Meeting to start at 12:00 PM.  Please log-on a few minutes prior to ensure connection success.

Please RSVP below.  The Zoom link will be emailed to you after registration.


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Member NameCompany
Cris AlexanderCrawford Broadcasting Company
Lawrence BehrLBA Group
Matthew ButcherSublight Engineering
Michael CelenzaM. Celenza Communications, Inc.
David ColeWidelity. Inc.
William Cordell, P.E.Cordell Communications, Inc.
Steven CrowleySteven J. Crowley, P.E.
Anne CrumpFletcher, Heald & Hildreth, P.L.C.
Joseph M. Davis, P.E.Chesapeake RF Consultants, LLC
Dave DohertySkywaves LLC
Jonathan EdwardsFCC Enforcement Bureau (Atlanta)
Donald G. Everist, P.E.Cohen, Dippell and Everist, P.C.
Mark Fehlig, P.E.Mark G. Fehlig, P.E.
Bert GoldmanGoldman Engineering Mgmt
Troy LanghamiHeartMedia
David LayerNational Association of Broadcasters
Thomas LockeCOHEN DIPPELL AND EVERIST
John LynchERI
William MaglioccoNexstar Media Group
David MaxsonIsotrope, LLC
Daniel RysonParamount
Thomas Silliman, P.E.Electronics Research, Inc.
James StenbergSignal Infrastructure Group
Robert Weller, P.E.National Association of Broadcasters
Larry Will, P.E.Independent Consulting Engineer
Member NameCompany