The FCC Public Safety Bureau sought comment on...

The FCC Public Safety Bureau sought comment on a proposal by NAB to relax, but not eliminate, the audio filtering requirement for Travelers’ Information Stations. NAB filed the proposal in its reply comments to an FCC proceeding that proposed to eliminate the rule, the bureau said Wednesday in a public notice (http://bit.ly/QpZSJo). NAB said full-power AM radio stations “routinely use 5 kHz filters to address and prevent interference among AM stations, with few significant problems,” the bureau said. The bureau seeks comment on whether the public interest would be better served by NAB’s request, it said. It also invites comment on any other measures that could improve the intelligibility of TIS and provide adequate measures “to protect adjacent channel stations from harmful interference,” it said. The public notice explores other issues, including whether any change in the filtering requirement should be mandatory, it said. Comments are due May 16, replies June 2.