The only "lost opportunity" was that which the FCC caused when it did NOT decide on a single system.
By the time any system could be put on the air, it was too late... FCC or not. It was the legal maneuvers of Leonard Kahn that moved any possibility of AM stereo 5 years back. In 1978, AM was still a viable music medium. By 1982 or so, FM had the lion's share of music listening.
While in 1978 AMs themselves could have promoted their still viable music formats on their own airwaves, by the time AM stereo got on the air, a large number of AMs were no longer music stations and those that were had decreasing ratings. Most importantly, the AM stations that were still in music did not look like a force to be recknoned with to the equipment manufacturers and retailers... and there was little interest in that sector.
That is rubbish and you can't possibly believe that Mr. Kahn was THE one individual who "killed" AM radio in the U.S. Please say it isn't so. If you really do believe this then you are seriously out of touch.[/quote]
AM went moribund somewhere in the late 70's to early 80's. Save for the new king of AM, talk, there was little else that had any enduring power as a format on the band. Sure, some ethinc formats remained viable for another decade, but even most Spanish language and Black music formats have abandoned the band.
Were there a chance to have saved AM, it was when the band still had half of all lstening. That was when Mr. Kahn filed the first of his shots at the industry.
Who cares??? You call yourself a broadcaster and you don't care about junk engineering which causes MADI (mutually assured destructive interference)
Hey, this is your choice but honestly, I think you need to re-evaluate what this profession is all about and what your own priorities are. I must say that this single comment astonishes me.
First, HD does not destroy listening to stations in their primary coverage areas save one or two reported cases and for which a solution truly should be mandated. But even leaving that discussion aside, AM is not salvagable.... the bulk of listeners are over 55, which is not a universally attractive sales demo. The main formats, all derivitives of talk (news talk, news, sports) are moving to FM to solve sound quality and demographic issues. Few AMs cover their whole market day and night, and aren't viable anyway...
David, have you thought about retiring at all?
Many times. But I keep being brought into new projects that are too much fun to say "no" to. Of course, none of those, by choice, would involve AM. And many don't involve RF at all... those who think that radio is about transmitters are going to be really sorry in the next few years.
Retirement may help to cheer you up from your overly depressing view on things and your reliance on irrational concepts to explain away real-world occurrences.
Happy New Year to you, too.