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HD Interference and the FCC

C-QUAM AM Stereo didn't go anywhere. It's still there, as the (default) AM Stereo standard for mediumwave broadcasting in the US. Most modern transmitters have the capability installed as a standard feature - and at most stations, it's turned off.

The reasons why? Sure. One: no AM Stereo receivers out there. Two: practically speaking, C-QUAM would have to be mandated by the FCC in order for it to gain traction. The problem is, AM Stereo requires lower average modulation for the system to work properly. AM operators have, for generations now, been culturally of a mindset which demands they have the "loudest, brightest signal on the dial." In order for this assumption to change all AM operators would have to play by the same rules, meaning everyone's modulation would have to be reduced by at least 6 dB. It would be worthwhile for everyone to concentrate on audio quality and stereo instead of just loudness, but unless it's a concerted industrywide objective, it won't happen.

Hand-in-glove with this, for AM to resurge our industry would have to demand far stricter enforcement of Part 15 rules to reduce manmade noise. Instead of pursuing this worthwhile objective, the NAB and Big Radio have been sitting with their thumbs up their butts trying to force HD Radio on a market which couldn't care less.
 
Nothing will ever be done about interference and noise until it affects iPods, iPhones, broadband, and the Microsoft/Apple bottom lines.
But, by then, it will be too late. The spectrum will all be toast.

(To elaborate: The mess we are in now is due to the reluctance of the industry to spend any money on making their devices NOT interfere. In order for there to be any action, the presence of interference will have to affect their bottom line.)
 
Savage said:
C-QUAM AM Stereo didn't go anywhere. It's still there, as the (default) AM Stereo standard for mediumwave broadcasting in the US. Most modern transmitters have the capability installed as a standard feature - and at most stations, it's turned off.
Click to expand...

How many stations even broadcast music on AM anymore? Its usually only the small town daytime stations. It can be a real gem to find these stations that are able to have a better sounding AM signal than the overcompressed audio pumped out by some FM stations. Most other AM stations are sports/talk where AM stereo wouldn't add much to the listening experience.
 
The only AM Station here in Vallejo..that has AM Stereo is 1190 KDYA the light and that's a urban contemporary gospel station, I want to hear today's music..not just on FM

I liked hearing like Q106 & KIIS-FM on AM 2 CHR station, KKLQ in San Diego went bust
 
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