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FCC Allows FM Digital Radio Asymmetric Sidebands - HD radio limps on. :-)

Posted by WYTZZ95FM <iframe src='https://members.boardhost.com/chicagomediachat/info/user=WYTZZ95FM' width='330' height='300' border=0 style='border:none;'> on November 28, 2025, 8:51 am

Read another article from a few days ago, that the FCC now is accepting the applications for this. But stations > 107.0 can't use due to concern of the Air Band that is > 108.0

The increases of power are a joke. Will make little difference. Too little, too late, kids.

Z

The FCC will allow FM stations to operate their upper and lower HD Radio sidebands at two different power levels without special permission — though for now, stations on 107.1 to 107.9 will have to operate under the previous rules.

The move to allow “asymmetric” sidebands more widely will give broadcasters greater flexibility to maximize their coverage areas while minimizing the risk of harmful interference to other stations, advocates say.

Link: RadioWorld: FCC Allows FM Digital Radio Asymmetric Sidebands

Re: FCC Allows FM Digital Radio Asymmetric Sidebands - HD radio limps on. :-)

Posted by detectivetom <iframe src='https://members.boardhost.com/chicagomediachat/info/user=detectivetom' width='330' height='300' border=0 style='border:none;'> on November 28, 2025, 2:58 pm, in reply to "FCC Allows FM Digital Radio Asymmetric Sidebands - HD radio limps on. :-) "

How come those in 107 band have to stay current?

Re: FCC Allows FM Digital Radio Asymmetric Sidebands - HD radio limps on. :-)

Posted by WYTZZ95FM <iframe src='https://members.boardhost.com/chicagomediachat/info/user=WYTZZ95FM' width='330' height='300' border=0 style='border:none;'> on November 28, 2025, 4:36 pm, in reply to "Re: FCC Allows FM Digital Radio Asymmetric Sidebands - HD radio limps on. :-) "

The 6th paragraph and forward describe why. It is not too clear aka layman terms.....

108 Mhz and above involves the Aircraft radio band. They are afraid the FM stations that end at 107.9fm, if one of the sidebands are activated to higher power for HD FM stations, it can/might interfere with the Airplane radios.

Z

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