I know there is a piggyback HD (digital system) by XPERI now but why haven’t radio broadcasters, the FCC and the NAB done what was done with TV . . . do away with analog and have only digital radio after say 5-10 years.
The advantage of digital TV was not in the fact that it was digital but in the fact that it was much higher resolution.
FM analog sounds just as good as digital systems to 99% or better of listeners.
The FCC choose IBiquity in 2002 (now XPERI), but it seems to since be spinning its wheels.
The FCC did not "choose" iBiquity, the radio industry did. They presented it to the FCC as a fait acomplit.
It worked. The changeover was fun (for me and all the people at our station). I took calls from early users (viewers, many into high-end audio / video), it was fun talking to our viewers that were watching this new technology.
Of course, radio is mostly a mobile proposition today. TV is not. In fact, digital TV ruined the market for little portable analog TV sets one could carry with them and have last all day on a pair of AAA batteries.
Many felt 8-VSB was chosen because it was U.S. developed in full or in part by Zenith. The Zenith name today is now owned by LG Electronics (a South Korean TV manufacture).
And LG makes absolutely the best TVs in the world, per all the recongized reviews. They don´t need the Zenith name... since that name was already deteriorated before it was sold.
So my question, every time AM & FM radio in the U.S came up with a way to make things better for radio, for example, transmitting in Stereo for AM or later HD (for digital AM & FM) it seems to be handled the “wrong way”, like “it’ll figure itself out” thinking.
AM's problems are not its audio. They lie in the fact that so few AMs even cover their entire market area today. Just 180 AMs in the top 100 markets cover 80% of the market day and night... less than an average of two good signals per market.
The FCC left analog radio on and digital kind of “piggybacks” on analog . . . after years of doing this we still have mainly analog AM and FM radio.
AM has little hope of rescue due to coverage and increasing noise levels. FM does not really have a perceived need for digital as analog FM sounds perfectly acceptable to nearly every listener.
Kind of like the FCC did with AM stereo, why???
I recall I think 4 systems at one time (for AM stereo) and the FCC put it in the hands of “the marketplace, why?
One reason: Leonard Kahn. And there were five systems, but when his was not picked, he held up AM stereo for almost 5 years, and by then nearly all music listening had gone to FM.
I recall going to the NAB in Las Vegas in the early 90’s and going to the Kahn booth, real simple set-up he had. Leonard Kahn had about 4 different radios . . . all tuned to a local Vegas AM station transmitting his AM stereo standard.
It sounded good.
So did all of the systems. I had order #1 for two of the five for an AM I managed, but by the time the FCC ruled "let the market decide" none of us were investing in AM any more.
But Motorola had an issue . . . I recall the “platform motion” that you’d hear on the Motorola system on AM skip signals at night. The L & R channels would move back & forth.
And it was fixed.
I had it at KTNQ in LA, and it sounded fine in the strong signal areas... but when you got below the 10 to 15 mV/m contours in DA nulls, it could be nasty. I turned it off and nobody... not one listener... noticed.
To say it plain & simple . . . AM stereo went nowhere. Because in my opinion it was left to “the marketplace”.
By FCC decision and because Leonard Kahn would not accept defeat. So the FCC said, "OK, we tried. Now it is up to you guys to shoot it out on your own".
Now we have the new system for digital AM & FM radio (XPERI) and it too seems to be going nowhere.
Partly because the FCC did not set a shut-off date for analog radio . . . they should!
No, they should not. There are hundreds of millions of analog AM radios out there now, and about 170,000,000 are in cars and won't be replaced until the vehicle is in a junk yard. Requiring all digital would make all those radios obsolete with no replacement option.
Forget the thinking that we don’t need AM or the present FM band frequencies for another service, like was done with the DTV changeover. Instead shut down the present AM & FM bands for THE GOOD OF RADIO BROADCASTING in our country and make radio all digital on a new band/s over a 5 -10 year period.
The period needed to get 90% of all car radios off the road is about 22 to 23 years. Your idea is impractical.
And, of course, listeners have no perception of need for digital radio. For TV, it was big flat screens and enormous resolution improvements. In radio it is zilch, nothing, nada.
During that time broadcasters will simulcast analog & digital but digital will all be on a new band/s.
Nobody buys new radios today, as the move is to streaming. Hint: streams are digital, but old analog FM usually sounds better. Listeners have figured that out.
And the only radios made from that point on will be digital receiving only the new bands.
Why don’t AM & FM broadcasters unite and demand that to happen, demand that what was done to TV be done to radio?
Because there is no notable improvement such as there was in TV. "Digital" was once a frightening word to radio, but that was 25 years ago when digital satellite was on the horizon... it came and did not destroy terrestrial radio. And now, even my kitchen microwave and water filter are "digital" so that word has no strength or power any more.
I recall that some felt that present FM broadcasters did not want additional competition from AM’s, if they all had the same good quality sound on a new band.
FM owners knew that nearly none of the local AMs even covered their market so we ignored them.
I feel this change to digital only radio would help radio to stay in all cars, gas & electric cars. And in many cases end the interference issue we now have especially on AM in cars, homes and businesses.
Again, there are huge markets like Phoenix and San Diego and the like that don't even have one AM that covers the whole metro. And others like Orlando, Atlanta, Nashville, that have, maybe, one that comes close to full coverage but even then not without interference from co-channel stations in the rest of the world.
IF THIS WAS DONE, WILL FINALLY HAVE DIGITAL RADIO . . . NO MORE AM & FM
Nobody asks for it... particularly consumers.
NOTE - if you want to still play around on AM ( I'd like it ) let stations go digital only on the present AM band and do it with as much power as they want to use up to 50 kw. But those stations would still have to have a facility on the new digital band/s also.
They would rip each other up so badly at night that nobody would be listenable. It is not modulation that determines skip on the AM band... it is the frequency of each station.
In any case, most of the "good " AM allocations were done over 80 years ago. Cities expanded and grew and those signals don't work any more. Our two big neighbors, Canada and Mexico, decided to gradually move about 80% of all AMs to the FM band. Canada is cleaning out AM, leaving only specialized services on AM. Mexico is letting everybody except on the regulated US border and a couple of big cities move to FM; AM is being given mostly to groups in rural areas that broadcast in one of Mexico's over 100 indigenous languages in very rural areas.
Brazil is closing the AM band. Many South American and Central American nations now have less than 25% of the AMs they once had.