New FCC Rules allowing “Moment method” computer modeling of nearby AM towers now in effect

On August 14, 2013, the Commission adopted the Third Report and Order in MM Docket No.93-177, which adopted rules to provide a single protection scheme for tower construction and modification near AM tower arrays and designate “moment method” computer modeling as the principal means of determining whether a nearby tower affects an AM radiation pattern.

The Wireless Telecommunications Bureau, in coordination with the Media Bureau, has developed AM Tower Tool, a tool that allows parties proposing construction or modification of towers to input their proposed location, and the tool will determine if there are operating AM stations within the coordination distances specified in Section 1.30002 of the Commission’s Rules that may potentially be affected by the proposed construction or modification.

Cavell Mertz also provides an easy way to locate existing and proposed AM stations using Google Earth. Information on this tool can be found here: FCCInfo on Google Earth


Public Notice [125 KB PDF]