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HD Radio’s History of Innovation and Future of Growth

What they're talking about is similar to the way SCA was used at one time. It wouldn't be for consumer use, but commercial subscribers. And yes, it would be encoded.
But Kevin referred to HD2s and HD3s, which are already accessible for free on any HD radio receiver. That genie is already out of the bottle. I suppose a day could come when HD radio could be encrypted. But who's going to pump money into an encryption technology for something that requires new HD receivers? Theoretically, Analog FM could also be encrypted for subscription. But that still begs the point -- who would buy a newer technology, encrypted FM receiver? I don't see FM or HD's situation changing to subscription -- there already are numerous online, streaming subscription services for probably most commercial uses. Every grocery, box and drug store I walk into that has music is using one. Even pubs and taverns have internet jukeboxes, which isn't much different.
 
Dr. Bruce Elving, whose Ph.D. thesis was related to FM DXing, and who published the FM Atlas until shortly before he passed away, used to sell SCA receivers, but you had to have a disability in order to buy them. Not sure, I assume he was licensed to do so, but he modified DX type receivers.
McMartin was a (relatively speaking) large provider of SCA tuners. It was pretty easy to hack one of those 'McMartian' tuners to make it frequency agile. I probably still have one in my basement somewhere. Most of the Muzak tuners were built by Toa.

Radio Reading Services for the blind were another common consumer of SCA's, which I always thought was one of the better uses. The problem was, if the listener lived in an area with excessive multipath at the host station's frequency, the crosstalk from the main carrier was pretty intolerable. Considering the table top units had cheap telescoping antennas, it was always a challenge trying to keep the SCA listeners happy.
 
McMartin was a (relatively speaking) large provider of SCA tuners. It was pretty easy to hack one of those 'McMartian' tuners to make it frequency agile. I probably still have one in my basement somewhere. Most of the Muzak tuners were built by Toa.

Radio Reading Services for the blind were another common consumer of SCA's, which I always thought was one of the better uses. The problem was, if the listener lived in an area with excessive multipath at the host station's frequency, the crosstalk from the main carrier was pretty intolerable. Considering the table top units had cheap telescoping antennas, it was always a challenge trying to keep the SCA listeners happy.
With the McMartin receivers, just install a capacitor in place of the crystal and adjust the tuning slug to change the frequency of the receiver. I've done it. :)
 
And besides, with HD radio, like all radio, you can change stations while driving. Can't do that legally on your phone in many (most?) states.
Distraction is distraction.

Jeff in Sa-ra-so-ta!
 
If there’s ever a pure digital mandate for HD Radio, it will be the end game for over-the-air AM and FM radio. So if there’s an analog sunset, that will be the final coffin nail for free radio.
 
The FCC will never mandate a system which is patented and requires payment before the station can use the technology.
 
If HD Radio is the future and they want wide adaption, why not go the analog TV route and have a forced cutoff date.
 
If HD Radio is the future and they want wide adaption, why not go the analog TV route and have a forced cutoff date.
That’s my thinking as well. Granted the television thing was selling spectrum to the telecoms.
 
If HD Radio is the future and they want wide adaption, why not go the analog TV route and have a forced cutoff date.
Please read my previous post:
The FCC will never mandate a system which is patented and requires payment before the station can use the technology.
And from The BigA:
It's zero possibility. The entire foundation of the Communications Act is free reception of radio and TV.
 
If HD Radio is the future and they want wide adaption, why not go the analog TV route and have a forced cutoff date.

Because, as Frank said, they would be giving the owner of the HD Radio trademark a windfall profit.

It also makes hundreds of millions of AM & FM radios obsolete and useless, destroying the EAS system.

HD Radio is not free shareware. It's a copyrighted and trademarked technology that users must license and pay for.

No one has said "HD Radio is the future." It's another outlet among many other platforms. What radio owners are doing is combining AM, FM, HD, and streaming together. That is the future. Give consumers options and let them pick.
 
Because, as Frank said, they would be giving the owner of the HD Radio trademark a windfall profit.

HD Radio is not free shareware. It's a copyrighted and trademarked technology that users must license and pay for.

No one has said "HD Radio is the future." It's another outlet among many other platforms. What radio owners are doing is combining AM, FM, HD, and streaming together. That is the future. Give consumers options and let them pick.
So it's a marketing ploy. That answers my questions. The FCC has no power over it?
 
So like with Digital TV where they sold spectrum. Could the FCC do the same with terrestrial ratio? Digitize it and sell the spectrum?
 
So it's a marketing ploy. That answers my questions. The FCC has no power over it?

What do you mean? What is a marketing ploy? The FCC regulates all broadcasting.
So like with Digital TV where they sold spectrum. Could the FCC do the same with terrestrial ratio? Digitize it and sell the spectrum?

There is no value in AM or FM spectrum as there is with VHF. Read up on your physics.
 
Only to make sure that the system meets the RF mask regulations. Once approved, the FCC has nothing more to do with the matter.
It seems to be stuck in limbo. Did the FCC consider this a fad and would never get wide adoption? Could they have pushed it further if they wanted to?
 
It seems to be stuck in limbo. Did the FCC consider this a fad and would never get wide adoption? Could they have pushed it further if they wanted to?

They approved it for use and let the marketplace decide. As they did with AM stereo. No mandate.

There never was a mandate for FM either. It took 35 years to gain acceptance in the market.
 
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