Talk:HD Radio

message: "As of May 2009, there were more stations in the world on the air with HD Radio technology than any other digital radio technology."
Really? Even more so than broadcasting in the DAB? It comes to my attention that HDradio is a system thats mostly limmited to Unites States and a few European areas., And the statistics in that paregraph shows the stations that are only in United States, Theres alot of radio stations in the world, and a good majority is outside the united States, and The worlds a pretty big place you know.....
(I'm sorry my english is bad, I really speak Russiwn...)  — Preceding unsigned comment added by 67.5.158.162 (talk) 06:53, 14 December 2011 (UTC)
thread_title: not sure about the statistics, may not be the netrual PV for worldview

message: Why does Sony is not making car stereos HD ready? MarioV 01:50, 9 June 2006 (UTC)
thread_title:  Sony 

message: It seems that this article has more useful information on AM radio than the AM broadcasting article.
--
In any discussion of HD Radio's merits, please try to seperate your attacks on HD's negative affects on AM radio from those about FM radio.  As a broadcast engineer, I know that HD causes many more interference problems on AM than it does on FM.  I use it on FM, but hate it on AM.  When you don't qualify your "hash" and interference complaints about stations and situations with a discussion of what band you're hearing this trouble on, you give the public the impression HD Radio is as bad for FM as it is for AM, which it clearly isn't. - 128.61.18.2 (talk) 11:28, 3 October 2008 (UTC)
thread_title:  AM Radio 

message: "The term "on channel" is a misnomer because the system actually broadcasts on the ordinarily unused channels adjacent to an existing radio station's allocation"
Am rather amused by this bald lie. It goes to show how dishonest the HDR proponents are.
On the AM BC band there are no vacant slots either side of an AM station. In fact the modulation bandwidth is as wide (or wider) than the channel spacing. 
It might be true that local stations are well spaced, but more distant stations are at 10 KHz spacing, so there is no way to avoid the digital sidebands when listening to a distant station..
~~  — Preceding unsigned comment added by 14.207.18.233 (talk) 10:56, 9 April 2023 (UTC)
thread_title:  AM digital interference 

message: Should there be a sentence explaining what the HD in the title stands for? I'm sure they intend for it to stand for High Definition, although that's probably just a way to cash in on the HDTV non-craze that's going down. Is there some official title for the HD portion of the name?
HD Radio does not stand for anything.--XMBRIAN 19:14, 16 September 2006 (UTC)
thread_title:  Title and should it be moved

message: I believe that there is an error in the article, "It does not generally cause interference to any analog station within its 1mV/m² signal strength contour, the lowest limit to which the FCC protects most stations."  The units of radio signal strength should be mV/m.  See the article http://en.wikipedia.org/wiki/Signal_strength .Bartonsmith 13:42, 17 September 2006 (UTC)
thread_title:  Signal Strength Units ? 

message: I understand the difference of the HD radio signal and the radio receiver. But what about the radio speakers? Is there a difference or are they just putting an improved signal through the same old speakers which will not maximize the new HD singal?
There is no such thing as "HD" or Digital speakers or even headphones.  I laugh everytime I see digital in reference to sound waves.  Ever listen to a modem... that's what digital sounds like.  Also, don't ever think that the higher the wattage the better the speaker.  Always look for efficiancy when buying speakers.  A 1000 watt speaker just takes a 1000 watt amp to push it.
Ty  —Preceding unsigned comment added by 192.195.66.44 (talk) 14:22, 26 August 2008 (UTC)
thread_title:  HD Speakers? 

message: I changed the definition of what HD stands for at the end of the first paragraph.  It originally said it stands for Hybrid technology, however according to Howstuffworks.com.
Yeah, it's a sloppy edit.  :-(
Fontenot 1031 22:13, 27 November 2006 (UTC)
replies: text: Update: The representative of the HD Digital Radio Alliance has the following update on the question of what HD stands for: "HD Radio is a trademarked name that was chosen because it resonates with consumers to mean a better quality audio experience. It’s easy for consumers to understand that HD means higher quality. Although HD Radio uses a hybrid digital technology, that is not what HD Radio stands for. iBiquity is currently reaching out to Wikipedia and IBM to have those references changed."
That's kind of deceptive to call something "HD" expecting people to associate it with "High Definition" but then say that it really doesn't mean that, and it doesn't mean "Hybrid Digital" and that it really doesn't mean anything at all.  Should we be more clear in the first paragraph about this strangeness?
--Rcronk (talk) 22:33, 4 December 2007 (UTC)

text: Thanks for getting in touch with us.  Right "HD" is simply part of our trademark for In-Channel, On-Band digital radio technology. It doesn’t have a meaning on its own. - Vicki Stearn, Director, Corp. Com.
I'll tweak the first paragraph to be more clear on this.
--Rcronk (talk) 21:20, 5 December 2007 (UTC)
thread_title:  The real definition of HD 

message: * Adding digital content may create high-frequency spikes. Do these have any detrimental effect on health? For example, can they interfere with normal nerve axon and synaptic transmission characteristics in the human body? Or does their amplitude drop so greatly inside the body (the body is a wet conductor) that they have negligible effects?
* The plan is eventually to eliminate the audio signal, to go all digital. Is this fair to owners of AM radios? I'm thinking, for example, of construction workers who rely on inexpensive AM radio to help get them through the day.
* Perhaps a minor complaint: it used to be that crystal radio sets charmed youngsters and got them interested in science and technology. Are we losing this sort of thing by eliminating all simple technology in favor of silicon chips?
David 18:00, 15 December 2006 (UTC)
replies: text:   Since the FCC controls the maximum power output, the addition of the Digital signal requires a corresponding decrease for the Analog.  So if, for example, the limit was 100 watts total, that means the analog portion must be reduced from 100 watts to 99 watts to make room for the 1 watt digital portion.  (Short answer: Yes.)  ;-)  Theaveng 22:40, 22 August 2007 (UTC)
thread_title:  More Criticisms 

message: Are the complete, exact technical specifications of the digital format etc secret?  If not, please give the basic info in the article, and link to complete info.  If the specs are secret, how foolish and wrong to pick this as a "public" broadcast standard -- good thing the rest of the world seems smarter!  What about decoding this digital signal with a computer?
(howstuffworks seems like a valuable additional source: http://electronics.howstuffworks.com/hd-radio1.htm) -69.87.204.244 14:05, 6 March 2007 (UTC)
thread_title:  secret? 

message: The article says:
Other criticisms, particularly from the television broadcast industry, cite HD radio’s rather colloquial usage of the term HD, which has historically been used and reserved for television. Some have argued this usage may be a form of trademark infringement. However, most arguments are unsubstantiated—the HD networks and media conglomerates (Fox, ABC, etc) failed to secure the trademark initially, and hence lost the HD branding to the public domain (similar to “Hoover” for vacuums, “Kleenex” for tissues, “Ziplock” for plastic bags, among others).
Terms such as Hoover, Kleenex, Ziploc and others (thought that list is woefully incomplete, missing, for instance, "spam" and "google") are registered trademarks that have become "genericized" and are in danger of losing or have in fact lost their trademark registrations. They are, in effect, victims of their own popularity. In contrast, nobody registered the term HD as a trademark or, more appropriately, as a certification mark and, as a result, the term can be used by anybody except to the extent that the companies that have used the term HD in relation to television image quality have common law trademark rights.
The comparison to so-called genericized trademarks is not appropriate in the context of the term HD and should be removed by somebody who is responsible for this page.
Kaplanmyrth 03:19, 18 March 2007 (UTC)
replies: text: Did it really say "Ziplock"?  Because that's not how it is spelled.  Also, all three named brands are still extant, valid trademarks. Huw Powell (talk) 03:05, 16 May 2015 (UTC)
thread_title:  HD not a generic trademark 

message: Feel free to add a HD radio column to the OFDM#OFDM system comparison table. Mange01 11:48, 17 July 2007 (UTC)
thread_title:  OFDM system comparison table 

message: `This article may be too technical for a general audience' ... no way!  If you want to add a less technical summary, fine, but don't remove all the technical bits.  dougmc 14:47, 1 August 2007 (UTC)
thread_title:  Too technical? 

message: :Image:Hdradiologo.jpg is being used on this article. I notice the image page specifies that the image is being used under fair use but there is no explanation or rationale as to why its use in this Wikipedia article constitutes fair use. In addition to the boilerplate fair use template, you must also write out on the image description page a specific explanation or rationale for why using this image in each article is consistent with fair use.
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thread_title: Fair use rationale for Image:Hdradiologo.jpg

message: This page seems to be heavily biased against HD radio, including lots of unsourced statements:
*"in actual practice this is absolutely untrue unless you live within 10 miles of the transmitters and even then the fidelity is not as good as a good analog radio"
*"this results in one station obliterating two others creating harmful interference which is against the FCC rules although these are not being enforced at all at this point anyway"
*"HD Radio has been criticized for being incompatible with the standards selected by most other countries; hence overseas travel with an HD Radio, or the sale of radios to or from countries that don't use HD Radio is not possible. Manufacturers presently must design and build separate radios for the U.S. market which many find a waste of time as many other more realistic countries' broadcasting regulators can see this model is going absolutely nowhere except in a few engineers minds here in the US."
*"Unlike regular car radios which come standard with every automobile, HD Radio requires you to buy a new radio or upgrade costing more than $1000 extra." (is this a serious criticism?)
The criticism section is large and criticism creeps into the other sections anyway.  The whole article needs references and criticisms should be limited to those with sources.  I'd make many of these edits myself, but I don't really know much about the subject. I've added several "attribution needed" tags where appropriate.  Oren0 02:31, 22 September 2007 (UTC)
replies: text: Obviously you don't like HD radio, but in order for your edits to be taken seriously you need to conform to WP:NPOV and WP:NOR. If you can find reliable sources that make criticisms, then by all means add them. If you believe that statements in the article are inaccurate, mark them with  tags and give editors time to fix them. But nobody will tolerate you turning this page into your own soapbox. You can't add facts (especially highly detailed ones about range and quality and such) unless they're sourced, end of story. Oren0 21:29, 22 September 2007 (UTC)
replies: text: "not even any talk of it"   -----  False.  False.  False.  FCC *did* in fact request that manufacturers develop BOTH analog  and pure-digital modes, because the FCC plans to treat radio the same way they are treating television (with an analog shutdown in the future.)  Thus if you review the white papers, you will see there are modes for Pure Digital operation.  Those modes may never get used, but that doesn't change the fact that they are there, and that's why they are documented here.  -  Theaveng 15:09, 24 September 2007 (UTC)
replies: text:  P.S.  As for quality, if you've ever listened to HE-ACC or AAC+ internet radio (on Shoutcast for example) at 40 kilobits/second then you already know how HD-AM sounds.  HD Radio uses the same codec with the same quality as internet AAC+ radio.    "Scientific testing by the European Broadcasting Union has indicated that HE-AAC at 48 kb/s was ranked as "Excellent" quality using the MUSHRA scale."  Source wikipedia.   AAC+ is also the same codec being used for European-DAB radio (starting 2008).   -  Theaveng 15:35, 24 September 2007 (UTC)

text: Gata, you claim that this article reads like an Ibiquity puff piece, yet do not really cite any particular parts of it. In your defense, I have seen nothing that says the FCC plans to eventually convert the FM dial to digital. In fact, I've been hearing exactly the opposite, yet I currently have no sources readily available for that. If there is a plan to turn off analog radio, then this needs a very strong cite (an FCC document, AP report, etc. - not from an opinion blog). Now Gata, just because this article is not a complete slam on HD Radio does not mean that it is propaganda. And I think it's pretty ironic in that, while criticizing it for being overtly POV, you added tons of unsubstantiated 'facts' and lots and lots of opinion (...'went over like a lead balloon'). Now tell me, is THAT WP:NPOV? That's why many are irritated by your recent actions on this article. It is not because you are right and everyone else is wrong, as you obviously seem to think. Overall, the article is good, and I can see that it is heavy in facts, even answering a few questions that I had about it. --Fightingirish 13:46, 27 September 2007 (UTC)
replies: text: Although the FCC many never discontinue analog radio, HD Radio *does* include Pure Digital modes as part of its standard, and I think they should be documented.  -  Theaveng 15:49, 27 September 2007 (UTC)
replies: text: That is true, but it will be a long time, if ever, until the FCC will mandate all-digital like they did with TV. That distinction should be made, to avoid confusion.--Fightingirish 18:25, 27 September 2007 (UTC)
replies: text: The chances of the FCC mandating radio to go the same route as TV (pure digital) is ages away from now. There are too many analog radios still in use that and HD radio is still in its infancy, and still has a lot of kinks (I call em flaws) to work out. --Milonica (talk) 19:11, 7 October 2008 (UTC)
thread_title:  NPOV 

message: I'm an electrical engineer.  I did a lot of research on HD Radio and how it works (or does not work), reviewing various white papers and FCC studies of the hardware.  And what happens next?  Along came 2 people who basically destroyed all my hard work.  I was going to go back and try to restore all the facts I had added to article, but you know what?  Forget it.  There's no point in me wasting my time trying to "fix" the article, if people can so easily ERASE EVERYTHING I ADDED to the article.  Why should I waste my time???
Yes I'm angry.  The vandals erased some VALID information (both the pros and cons) along with my carefully researched citations.  What did I waste my time for?  -   Theaveng 14:08, 24 September 2007 (UTC)
replies: text: What?  Wikipedia isn't the Utopian ideal it's often touted as?  Shock, horror! ;) 24.254.10.80 (talk) 05:41, 28 July 2008 (UTC)
replies: text:  I've reverted the entire article back to how it was BEFORE 68.184.38.79 and GATO (probably the same person) started making Barbarian Vandal Raids on the entry.    I can understand their skepticism for HD Radio (after my research I decided NOT to buy HD;  it's got some serious flaws), But that's no excuse for them to destroy/obliterate all the hard work I put into the article, trying to make it factual and informative.  Stupid frak____.  -  Theaveng 14:42, 24 September 2007 (UTC)
thread_title: I'm ______ at the vandalism

message: If Gato4001 only did this once or twice, I wouldn't care, but he keeps making these same changes again-and-again-and-AGAIN, even though he has been instructed not to do so.  He is a DISRUPTIVE editor, not a constructive one.  He seeks to destroy the article, rather than create a better one.  He seeks to create chaos, rather than harmony & cooperation.
* DELETED positive-sounding phrases w/o cause:
*(Note if a phrase repeats, it's because Gato deleted it multiple times in multiple revisions, despite being asked not to erase valid information.)
**"new radio is required. Brand name (Sony, Cambridge Sound Works, JVC, etc.) HD Radio receivers are available for home and car at major consumer electronics chains, online and through regional stores."
**(under AM)  "If in the future the FCC decides to discontinue analog broadcast, as they decided to do with analog television"
**(under FM)  "If in the future the FCC decides to discontinue analog broadcast, as they decided to do with analog television"
**"terrestrial broadcasters are hopeful that a large marketing campaign and falling prices for HD Radio receivers will increase sales. (www.redorbit.com/news/entertainment/889294/hd_radio_pumps_up_volume/index.html)"
**"HD originally stood for Hybrid Digital/analog"
**"More than 1360 stations are broadcasting with HD Radio technology and more than 600 offering Multicast channels."
**"Proposals for AM stereo have produced similar controversies."
**(deleted a second time, even after it was restored) "Proposals for AM stereo have produced similar controversies."
**"a large marketing campaign by terrestrial broadcasters and falling prices for HD Radio receivers may increase sales."
**"Go to the link if you have money to burn and want to waste some of it."  (whereupon he deleted some 30 important links to external information)
**AND AGAIN: "Go to the link if you have money to burn and want to waste some of it."  (whereupon he deleted some 30 important links to external information)
**Deleted reference: in.tech.yahoo.com/070427/137/6f226.html
**Deleted another reference: www.ibiquity.com/broadcasters/quality_implementation/iboc_white_papers
**Deleted external reference to www.mp3newswire.net/stories/7002/hd-radio2.html.  Why?  Who knows?
****(editor's note)  (These phrases didn't need to be deleted; he's destroying useful information.)
* Randomly inserting questions in the middle of articles:
**"(in whose opinion is this "high quality" besides iBiquity's?)"
**"(where are the specs? High quality compared to what? What standard is being used?)"
**"(by what standards is the audio considered "high quality"?)"
**"(what analog shutdown? There is none scheduled at all, what do you base this on, any citations for this?)"
**"(where are the specs, in whose opinion is the audio "high quality?)"
**"(can you support this with a reference?)"
**"(In whose opinion does IBOC approach CD quality sound? Ibiquity's or consumers?)"
**"(How often does this happen? are there references for this in real world listeing?}"
**"(in whose opinion is it high quality audio, iBiquity's or consumers? where are the audio figures, frequency response, compression ratio etc?)"
**"(Can you back this up with a source or is this just iBiquity backpedaling hoping consumers will associate it with TV's HD?)"
**"(in whose opinion is this high quality audio, consumers or iBiquities?)"
**"600 offering Multicast channels. (Are these all on the air now or is there only a small minority on the air, and how many are on at night? where are your figures?)"
**"(achieving quality equal to Analog AM Stereo) (in whose opionion and is this likely?)"
****(editor's note)  (The questions are fine, but they belong in the TALK page, not the article.  We've told Gato4001 this many, many times, but he refuses to listen.  He just keeps inserting random questions into the middle of articles.  He is disruptive, uncooperative, and creating chaos.)
* ADDED negative-sounding phrases w/o citation:
*(Note if a phrase repeats, it's because Gato posted it multiple time in multiple revisions, despite being asked not to include POV opinions in the article.)
**"creating widespread harmful interference especially in the AM broadcast bands."
**"although there are very few AM stations using IBOC at this present time due to fear of consumer complaints of interference"
**"NDS, a maker of digital media encryption technology, recently signed a deal with iBiquity to provide HD Radio with an encrypted content-delivery system that effectively institutes subscriptions capability on digital radio, so it may not be free for long."
**(under AM)  "If in the future the FCC decides to discontinue analog broadcasts, which is very much in doubt,"
**(under FM)  "If in the future the FCC decides to discontinue analog broadcasts, which is very much in doubt,"
**"HD radio has so far gone over like a lead balloon."
**"Currently the HD Digital Radio Alliance... althought the majority of these companies' stations do not use IBOC Hybrid Digital"
**"This is designed to provide additional choices for listeners instead of several stations all independently deciding to create the same format, although this has not happened to any great extent as of this writing"
**"iBiquity Digital dubiously claims that the system approaches CD quality"
**"HD is free at this point although iBiquity is trying to come up with various licensing schemes"
**"In pure digital mode which is doubtful at this point"
**"HD programing is generally abysmal."
**"they are investigating negative consequences such as harmful interference to their own country's radio stations which has started to become a problem since the night AM IBOC startup on Sept 14, 2007."
**"(fact? The fact is that only a small portion of the licensed stations are actually transmitting IBOC at this present time, especially on the AM band: http://topazdesigns.com/iboc/station-list.html"
**"HD Radio tuners have been noted by many owners to be very insensitive (who own Hybrid Digital radios and belong to various radio clubs who wish to remain anonymous and have not consented to give their names)"
**"Hybrid Digital Radio has been criticized in many trade magazines (you can go find them if you like, they are there)"
**"Go to the link if you have money to burn and want to waste some of it."  (whereupon he deleted some 30 important links to external information)
**"Clear Channel is actually selling programming of several different music genres such as Indian snake Charming music, The 24 hour Barry Manilow channel, Ray Conniff Singers sing everything, and Lawrence Welk soundtracks from his old shows"
**"achieving quality equal to Analog acoustic victrola sound"
**"iBiquity Digital notes that the system approaches 1928 Victrola quality sound and offers reduced interference and static although in actual practice this is absolutely untrue unless you live within 10 miles of the transmitters and even then the fidelity is not as good as a good analog radio."
**"if there ever is an analog shutdown which is highly doubtful at this point due to many interference complaints"
**"Much of the highly questionable success of this system"
**"features redundancy and poor sound"
**"The main problem with FM-HD seems to be that the signals are very weak and the receivers are extremely insensitive which is not a good combination as the receivers do not decode the hybrid digital signal unless you are extremely close"
**"blanking out the two adjacent channels for many 100's of miles from a 50 KW clear which are at the present time the predominant users of HD as they have nothing to lose."
**"this noise is a jarring experience when you encounter it."
**"much to the dismay of most of the radio community."
**"unlike HD-AM which completely wipes out two adjacent channels creating harmful interference which is supposed to be against the FCC rules."
**"whether this format will still exist by 2009 is questionable."
**"multicast (HD2, HD3, etc.) signals such as polka channels, all punk rock channels and basket weaving instructional programs."
**"can only receive HD if you live in the stations backyard and have a large outdoor antenna."
**"will revert to analog mode if you are lucky, many times it will revert to atmospheric noise as the signal will be completely lost if you are farther than 3 miles form the transmitters"
**"HD Radio has been officially adopted only by the US and Brazil who will obviously jump off a bridge if the US says so."
**"iBiquity and other sources do not explicitly state in published articles that these test are actually test of how bad the interference is to the domestic stations, many neighboring countries are said to be upset at all the noise this mode generates especially on the AM band and are expected to officially complain to the US government soon."
**"Manufacturers presently must design and build separate radios for the U.S. market which many find a waste of time as many other more realistic countries' broadcasting regulators can see this model is going absolutely nowhere except in a few engineers minds here in the US."
**"this results in one station obliterating two others creating harmful interference which is against the FCC rules although these are not being enforced at all at this point anyway."
**"If the analog portion is dropped which is extremely doubtful at this point"
**"FCC approved nighttime AM HD broadcasts making a mess of AM reception countrywide with a growing outcry from consumers."
**"there are reported to be fewer than half a million HD radios in use in the U.S. but the numbr is suspected to be far less"
**"So far IBOC has been selling like a lead balloon."
**"iBiquity ultimately has control over HD Radio receiver-manufacturer licensing thereby becoming a virtual monopoly over listeners choice in the US"
**"HD Radio requires you to buy a new radio or upgrade costing more than $1000 extra."
**"HD radio costing more than $100 over the price of the existing radio that comes in the car."
**"making a mess of many parts of the AM spectrum even at this early stage of the night rollout of IBOC and this is only expected to get worse as more station furtively turn on the IBOC at night"
**"which is an incredibly jarring noise that makes many people think their radios are defective."
**"Most analog AM radios have electronic filters to remove all signals more than 5 kHz away from the center frequency which is the reason why most modern AM receivers sound so bad"
**"If the analog portion is ever dropped dropped which is very doubtful at this point"
**"The FCC is a bought and paid for corrupt arm of the administration which values business's every whim over conmsumers needs"
**"iBiquity ultimately has control over HD Radio receiver, in other words they are a monopoly obviously having greased the correct palms"
**"most of these foreign countries are evaluating the negative consequences (inteference) of IBOC (HD) to their own analog stations not any positives which apparently most other countries fail to see."
**"reception is improved although this in reality is only arguably true if you are within a few miles of the transmitters and have an outside antenna."
**"although the real amount is far smaller as many broadcasters are afraid of the consequences from consumers and also realize that virtually no one owns these expensive receivers which do not work as advertised."
**"extends out by 15 kHz creating a whooshing hash sound which covers up the two adjacent channels ruing reception on these two adjacents."
**"and incompatible with all AM receivers in existence at this point."
**"HD Radio is also unique in that it creates vast amounts of interference on both adjacent bands in the AM band and the receiver needs to be very close, somewhere around 10 miles or less in most cases with outdoor antennas to receive the FM IBOC"
**"HD so far is going over like a lead balloon and many broadcast experts expect it to go the way of the dodo within two years."
**"HD Radio (achieving quality much poorer than curent analog)"
**"may increase sales although in reality this is doubtful as consumer apathy is rampant with the many much better technologies available now."
**"but interferes for hundreds of miles at night making a mess of many parts of the aM spectrum even at this early stage of the night rolloout of IBOC"
**"In 2006, BMW began offering HD Radio tuners as an option in their 5,6 and 7-series models which have sold like lead balloons."
**"Reception can be problematic in fringe areas such as across town"
**"Much of the following BS is iBiquities point of view and was most likely written by an IBOC shill, independent voices are not tolerated here obviously"
**"To Summarize, DO NOT BUY AN IBOC RADIO AS THEY ARE A WASTE OF MONEY AND WILL BE OBSOLETE VERY SOON, AM STEREO WAS A MUCH BETTER IDEA AND SOUNDED BETTER AND DIDN'T CREATE INTERFERENCE TO OTHER STATIONS AND IT DIDN'T WORK OUT EITHER."
****(editor's note)  (Thus he's trying to twist the article from an informative piece, into an ANTI-HD propaganda piece.)
Yes I'm angry.     I'm sick of seeing these Barbarian Vandal Raids destroying all my hard work (improving the article) over the last month.     He's also destroying other people's hard work who originally created the article ~2 years ago.  GATO4001 is disruptive, uncooperative, and creating chaos.  -  Theaveng 11:34, 26 September 2007 (UTC)
replies: text: Try to keep your emotions out of it.  Getting angry is unlikely to help the encyclopedia improve.  There have been two "final warnings" posted on User Talk:Gata4001.  If you believe he violates NPOV/vandalism again, feel free to report him at Wikipedia:Administrator intervention against vandalism.  Try to remain civil though. Oren0 17:31, 26 September 2007 (UTC)
thread_title: Documentation of Gata4001's Uncooperation/vandalism

message: I notice some one changed the "regular radio comes with all cars" to "most cars".  I'm curious to know:  What car models do NOT come with a radio?  I recently looked at the cheapest car I could buy (toyota yaris), and it came with a radio even with everything else stripped (no power brakes; no power steering; no a/c).  -----  Point is: I am unaware of any car model that does not come with an analog radio; it's standard equipment.  Isn't it?  -  Theaveng 14:54, 24 September 2007 (UTC)
replies: text: Tata Motors announced a Tata Nano last year: the $2000 made-in-India car on which neither a broadcast radio nor an airbag are standard equipment. Odds are, it doesn't include IBOC either, though... --66.102.80.212 (talk) 08:48, 9 January 2009 (UTC)
thread_title: What cars Don't come with old-style analog radios?

message: You can add these to the article AFTER you give us some citations.  If you don't have citations, then they can not be added.  (Because they are merely unsubstantiated opinions without validation.  They are also not NPOV (neutral).)
*"AM stations are hesitant to change fearing consumer and industry backlash at the interference which this system is beginning to generate country wide." - How do you know?  Do you have a source for this information?
*"www.hear2.com/2007/09/measuring-hd-ra.html#comments"  - No this is NOT a valid citation.  It is merely someone's opinion.
*"(NDS, a maker of digital media encryption technology....)"  - And this doesn't belong in the INTRODUCTION section, which is merely a brief summary, not a detailed analysis.  It belongs where I put it; in the Overview section.
-  Theaveng 17:03, 26 September 2007 (UTC)
thread_title: GATA's contributions

message: I've come across these comparisons between HD-Radio and DRM already on the DRM page. I edited it and posted the  reason what was wrong with it. Please, read it and fix especially the paragraph  AM-HD vs. AM-DRM that is completely wrong.
BTW, there is nothing called AM-DRM. DRM is a standard for radio broadcasting on frequencies below 30MHz. That is what you may call AM. The standard for broadcasting on FM will be called DRM+.
24.81.130.107 09:42, 28 September 2007 (UTC)
replies: text: I think that's a trivial distinction, since various European Union nations have already started installing DRM in the same band where AM currently sits (hence AM-band-DRM, or just AM-DRM), but I will make the change just to keep you happy.  :-)   As for AM-HD Radio, it's pure digital mode is designed to fit inside 10 kilohertz, but you were partly correct.  It's  not 40 kbps, but only 20 kbps.  -  Theaveng 10:12, 28 September 2007 (UTC)
replies: text:  You still got it wrong. Look at this line: "Hybrid mode (analog and digital) - 5 for AM, 5 for DRM at 10 kbits/sec - (HD Radio is 40-60)". Just admit it. You're comparing apples and oranges - 10kHz bandwidth for DRM (only 5kHz used for data) with 30kHz for HD-Radio (20kHz used only for data, other 10kHz used to broadcast data "under" analog signal). 24.81.130.107 11:23, 28 September 2007 (UTC)
replies: text:   "Just admit it."  You make it sound as if I am deliberately lying.  I assure you I am not.  At the time I posted that paragraph, it seemed logical to compared the DRM hybrid mode to the HD hybrid mode.  -  —Preceding unsigned comment added by Theaveng (talk • contribs) 09:33, 29 September 2007 (UTC)
replies: text:  I'm just glad we don't have DRM in the U.S. since it'd be a complete mess of confusion with the other DRM (Digital Rights Management). It's bad enough that iBiquity co-opted the HD moniker and freely admit it really means nothing.  Just another way for corporations to mislead the public into handing over buckets of cash for something that isn't what it's made out to be. 24.254.10.80 (talk) 05:48, 28 July 2008 (UTC)
thread_title:  Comparison with DRM completely wrong 

message: It makes the entry look very biased and is free advertising.   Gata4001 15:31, 28 September 2007 (UTC)
replies: text: This is standard practice for anything with a logo.  For a few examples at random, see Google, Frosted Flakes, Xbox 360, and Blu-ray Disc.  This article is about a registered trademark and therefore the logo is included right on top. Oren0 16:28, 28 September 2007 (UTC)
replies: text:  Clearly the Blu-ray article is biased.    Give me VHS any day of the week.  (Just joking.)  -  Theaveng 16:34, 28 September 2007 (UTC)

text: When I was growing-up, I got to hear lots of my dad's 8-tracks, and they were okay except they had a serious flaw with speed (either going too fast or too slow).  The absolute best sound quality (analog) came from Type IV Metal cassettes, with Type II store-bought chrome a close second.  Cassetes run circles around 8-track.  -----  (But Digital audio like CDs or SA-CDs blow them all away.)    -  Theaveng 11:48, 30 September 2007 (UTC)
replies: text: I always thought good quality vinyl LPs were the best as far as analog formats go. Digital sounds great, but the earlier ones sounded a bit cold compared to vinyl. 8-tracks were garbage, as were most cassettes. Commercial reel-to-reel wasn't bad (my dad actually had some prerecorded '60s stuff on R2R), but a pain to work with for just listening to music. Mobile Fidelity Sound Labs turned out some amazing vinyl product.--Fightingirish 01:15, 2 October 2007 (UTC)
replies: text: A Type IV cassette can achieve 20-22,000 hertz with 80 db S/N.  I don't think any vinyl can beat that (too much noise).  -  Theaveng 14:42, 2 October 2007 (UTC)

text: "I still hate IBOC and can't wait until it dies".    Really?  I had no idea you felt that way.  <wink>  :-)  —Preceding unsigned comment added by Theaveng (talk • contribs) 13:18, 19 October 2007 (UTC)
thread_title:  Why is what looks like the iBiquity HD radio logo allowed on top of the HD radio entry? 

message: I've just read through this, and I have yet to figure out how exactly to listen to HD radio signals. Me thinks it's time to stop with the "I wish I was a high school electronics teacher" speech, and just get to the point. This is an encyclopedia, not an electronics manual.  —Preceding unsigned comment added by 124.183.121.32 (talk) 11:31, 28 November 2007 (UTC)
replies: text: On the other hand, I'm an electrical engineer, and I find this article EXTREMELY valuable in understanding how it works, why it sounds better than analog, and how it compares with other Digital Radio options (like DRM or DAB).  -----  Oh and to answer your question: "How do I listen to HD radio signals?"  Answer: You buy an HD radio; simple as that.  :-)  The article says that in the first few paragraphs, and even provides a list of manufacturers towards the end, so you know where to go to buy one.     - Theaveng (talk) 12:23, 28 November 2007 (UTC)
thread_title:  Way too technical 

message: I'm curious as to whether any future date for a switch-off of analog radio in the USA has been announced.   Analog cell phones are being shut off in the USA in 2008, and analog television in 2009.  Is it likely that analog radio may one day be shut off also, so as to free wireless spectrum for more data services? Pine (talk) 21:36, 29 December 2007 (UTC)
replies: text: No date set.  Given that analog radios are installed in virtually every car ever made, and cars last 20-30 years, it will probably be 20 years until Analog radio shuts down.  In Europe where DAB has existed for ten years, there's still no set date for eliminating analog radio, although various governments have suggested 2015 or 2020.  ----  Theaveng (talk) 20:05, 7 January 2008 (UTC)
replies: text: I highly doubt they will completely shut of analog radio. HD radio is not going to be the end all be all of conventional radio. Too many people have (and they are still manufacturing) analog radios for them to set any date at this point. There are no really good sources that say Analog radio will be shut off at all. --Milonica (talk) 21:10, 23 September 2008 (UTC)
replies: text: Analog TV takes up a lot of spectrum space, a big reason for removing it.  AM and FM radio are much smaller, so less reason to go. Many newer services are coming in at higher frequencies, easy with modern electronics.  But you never know. Gah4 (talk) 07:23, 11 December 2019 (UTC)
thread_title:  Analog shut off [?] 

message: The correct terms are stereo AM and stereo FM, not AM stereo and FM stereo. "Stereo" modifies the transmission system, not the other way 'round. As a wag remarked some decades back, "FM stereo is stereo with flutter".
Kahn was not the inventor of stereo AM. There are several stereo AM systems, of which his is one.
WilliamSommerwerck (talk) 14:39, 27 March 2008 (UTC)
replies: text: "Stereo modifies the transmission system, not the other way 'round."  So does this mean John Ashcroft was wrong when he called himself Attorney General?  Should it have been General Attorney, since "general" modifies the noun attorney?   (I'm making a point here about how English doesn't follow hard-and-fast rules, and is actually a vary flexible language.  i.e.  FM Stereo and Attorney General is acceptable usage.)  ----  Theaveng (talk) 14:09, 29 April 2008 (UTC)
thread_title:  picky points 

message: a. HD radio
Around the Boston area what are the lowest cost Hybrid Digital HD radios, that do the job in a manner of speaking, for listening to music and listening to singing?...
b. Satellite radio
What are the lowest cost tabletop or boombox type radios or setups available around the Boston area for both sirius and xm satellite radio services?...
Among a few references checked so far
http://en.wikipedia.org/wiki/Hd_radio
http://en.wikipedia.org/wiki/Sirius_Satellite_Radio
http://en.wikipedia.org/wiki/XM_Satellite_Radio
-- the zak 22:51, 11 April 2008 (UTC)
thread_title:  How to buy Hybrid Digital HD radio 

message: Problem: at this time, this section's tone degenerates into future-predictive FUD by its end.
Accuracy of the content notwithstanding, the tone seems far afield of Wikipedia standards.  —Preceding unsigned comment added by PScooter63 (talk • contribs) 18:09, 12 May 2008 (UTC)
replies: text: Indeed is it quite poor now; iBiquity's product wasn't the subject of this article until recently. It looks like it's time for a huge revert. --M1ss1ontomars2k4 (talk) 19:22, 21 September 2008 (UTC)
replies: text: Accept, HD Radio *is* a product of iBiquity.... same way VHS is a product of JVC.  You can't discuss one without the other.  ---- Theaveng (talk) 17:00, 7 October 2008 (UTC)
thread_title:  Reduced quality concerns - NPOV? 

message: In the last revision I edited, I found duplicate named references, i.e. references sharing the same name, but not having the same content. Please check them, as I am not able to fix them automatically :)
* "'Eda Geek'" :
** 
** 
* "'Digital Radio News'" :
** 
** 
DumZiBoT (talk) 02:06, 10 August 2008 (UTC)
thread_title:  Bot report : Found duplicate references ! 

message: Theaveng, rather than removing any reference that clarifies the HDC relationship to AAC, lets try this: you cite an article that show HDC IS compatible with the MPEG standard; if you cannot and it stands that the HDC bitstream is NOT compliant with the MPEG standard, then consumers have a right to know this, and we ask that you stop glossing this fact over by saying "AAC-derived". Incompatible is, incompatible, and proprietary is proprietary. Again you can disprove this by citing references.
You can also stop deleting references to fact: that second generation DAB stations are using AAC.  —Preceding unsigned comment added by Ken2009 (talk • contribs) 16:22, 16 December 2008 (UTC)
thread_title:  AAC standard 

message: I don't think the advert template is justified here.  I did not see a justification in the edit summary or here.  A short list of who makes technology available to consumers is I think always helpful in a article like this. patsw (talk) 17:35, 2 January 2009 (UTC)
thread_title:  rm Advert template 

message: ==== Extremely high cost ====
«FMeXtra is even less expensive, and—on the transmission side—requires no installation (and therefore no cost), other than plugging it into the transmitter. However, special radios are required for reception in most cases.»
:I really find difficulty understanding this sentence!
Is it contradicting itself!
#Can FMeXtra transmissions be received on an HD-radio-receiver? How?
#Can FMeXtra transmissions be received on DAB-receivers? How?
:*Can FMeXtra transmissions be received on both of HD-radio-receivers & DAB-receivers? How?
:*Can ordinary analog-FM-receivers receive FMeXtra transmissions? How?
--Mahmudmasri (talk) 14:19, 21 January 2009 (UTC)
thread_title:  Misunderstanding 

message: «FMeXtra is even less expensive, and—on the transmission side—requires no installation (and therefore no cost), other than plugging it into the transmitter. However, special radios are required for reception in most cases.»
:I really find difficulty understanding this sentence!
Is it contradicting itself!
#Can FMeXtra transmissions be received on an HD-radio-receiver? How?
#Can FMeXtra transmissions be received on DAB-receivers? How?
:*Can FMeXtra transmissions be received on both of HD-radio-receivers & DAB-receivers? How?
:*Can ordinary analog-FM-receivers receive FMeXtra transmissions? How?
--Mahmudmasri (talk) 14:19, 21 January 2009 (UTC)
thread_title:  Extremely high cost 

message: Admittedly, I'm still very new here at Wikipedia, but I'm a fast learner.  I'm wondering why the reference I included in a recent edit were removed by IP 76.84.142.26.  Was it the quoted text, or the source reference? Argguy (talk) 05:12, 28 May 2009 (UTC)
replies: text: I don't know why it was done, but can guess.  I have restored the citation, but not the promotional press release hype, which I would deem inappropriate content. Hertz1888 (talk) 05:59, 28 May 2009 (UTC)
replies: text:  Ah, good to know, thanks.  I quoted the text from the source and not from Microsoft, but I understand why it didn't belong. Argguy (talk) 06:03, 29 May 2009 (UTC)
thread_title:  References removed 

message: If HD is free on cable,  why can Radio HD be free?  —Preceding unsigned comment added by Munozonfuego (talk • contribs) 07:06, 16 June 2009 (UTC)
thread_title:  Question concerning the Costs of HD 

message: This article has several slams, some subtle, to HD radio and the radio broadcasting industry as a whole, placing the agenda and opinions of those who support LPFM above facts.
In the Bandwidth section:
Ironically, the National Association of Broadcasters claims this is not a problem, while at the same time using it as justification to keep LPFM stations (except its own members' translator stations) off the air.
Speculation, opinion, and a stance of those who support LPFM
The entire "Translators" section is all amateur analysis of the law and incorrect at that. The entire section can be summed up in two or three objective sentences.  —Preceding unsigned comment added by Sraolive (talk • contribs) 19:15, 16 September 2009 (UTC)
thread_title:  Bias 

message: What tabletop HD radios are the best?... Many tabletop radios with hybrid digital HD radio appear to be of deficient audio quality, for example the tabletop HD radios at Radio Shack stores.
-- the zak (talk) 08:01, 19 September 2009 (UTC)
replies: text: If you're serious about buying an HD Radio, look into the Sony XDR-F1HD. This is perhaps the best HD radio in existence right now. Just my two cents. The only thing, you'll need to plug it into a regular sound system, as it is just a tuner, not a radio with speakers. --milonica (talk) 00:13, 20 September 2009 (UTC)
thread_title:  Deficient audio quality of tabletop radios 

message: I changed kilobit/s ( base 2) to kB/s (base 10 ) to keep in parallel with kHz which is a base 10 measurement. Also because the latter kilobit/s ( base 2) is not common knowledge nor in standard usage to date. Also because standard  audio equipment is measured in the standard base 10 systems of kHz and kB/s etc --Anthony morgan peters (talk) 14:16, 12 October 2009 (UTC)
replies: text: Kilo (k) means ×103. Kibi (ki) means ×210. Lowercase b is the symbol for bit. Uppercase B is the symbol for byte. There are eight bits in a byte. The bit is the unit of data (hence the kilobit, kibibit, byte, kilobyte and kibibyte are also amounts of data). The bit per second (b/s) is the unit of data rate (hence kb/s, kib/s, B/s, kB/s and kiB/s are all measurements of data rate too, but they are not equal). The "per second" is by no means implicit. MegaPedant (talk) 01:45, 25 November 2009 (UTC)
thread_title: Changed kbits/s to kB/s

message: Rearanged and added the following to the intro for clearer reading and understanding  "to transmit audio and data via a digital signal in conjunction with their analog signals. As a standared practice,the kilohertz signal rate is written next to its corresponding data transfer rate kilobits/s or kbits/s in Hd radio documentation."--Anthony morgan peters (talk) 19:46, 13 October 2009 (UTC)
replies: text: What does "kilohertz signal rate" mean? I read it in the introduction and I can't work out what you mean by it, so I think the casual reader will be confused too. MegaPedant (talk) 01:49, 25 November 2009 (UTC)
replies: text: I think I just removed what was left of that line from where it had ended up for being relatively content- and context-free. Huw Powell (talk) 03:55, 16 May 2015 (UTC)
thread_title: Clearer reading

message: I made a disambiguating edit for a link of the word bandwidth to the article bandwidth (signal processing).  In the edit I made, it was clearly referring to an effective range of analog signal frequencies.  However, there are other places where the same word is used to refer to bandwidth (computing), or perhaps equivalently, bit rate.  This is not confusing to electrical engineers, but newcomers to the topic may want to know that there is a distinction.  (I'm in the middle of looking for everywhere that links to the disambiguation page bandwidth, so I thought I would drop a note to see if anyone else wants to tackle this.  If not, I may or may not come back in a few months and do it myself!)  CosineKitty (talk) 20:32, 19 January 2010 (UTC)
replies: text: Engineers sometimes get confused, as they are often used in mixed situations. But yes, usually I know which one is which. I am not sure that there is a good way to do it. Gah4 (talk) 07:29, 11 December 2019 (UTC)
thread_title: Ambiguity of the word ''bandwidth''

message: The FCC has released an order dated January 28, 2010 that allows for a four-fold IBOC power increase, with some restrictions for a few stations, and ground rules for settling interference issues.
http://hraunfoss.fcc.gov/edocs_public/attachmatch/DA-10-208A1.pdf
This order contains some technical inforamtion so someone with more technical knowledge will have to read it before anything is added to the article.  —Preceding unsigned comment added by 174.27.224.139 (talk) 23:29, 29 January 2010 (UTC)
thread_title: FCC Approves Power Increase:  Order Released

message: Restored edits made 29 January 2010 as these contain information that is more current.
WQXR:  See station website, station was sold and WNYC acquired the 105.9 frequency in a three-way deal with Univision, and put WQXR and Q2 on 105.9, and WQXR on the HD2 of WNYC, in a simultameous move on October 8, 2009.
Mormon Channel  See radio.lds.org, which will confirm content, and unique nature of being a noncommerciial station on a commercial station's HD2, may not be the only one as there had been one in Ohio for at least a time broadcasting an NPR affiliate via a commercial station's HD2.
Translators:  Red link is of call of translator that is one of a very small number of HD Radio broadcasters that are broadcating HD Radio in via translators (not putting HD2 on analog translator), the others are in Vermont and southern Nevada (KNPR translators).  Verifiable in directory at hdradio.com, click the link to see more than just the major markets for this.  —Preceding unsigned comment added by 174.27.224.139 (talk) 00:29, 31 January 2010 (UTC)
replies: text: The reason I reverted the edits is that it seems a bit unnecessary to have examples of stations. Wouldn't saying there are stations that do what they do be enough. Why do we have to get specific? It makes it seem like these are the only translators carrying the HD streams when I know there are more doing this. --milonica (talk) 01:15, 31 January 2010 (UTC)
thread_title: Edits regarding WQXR, Mormon Channel, translators

message: Conditional Access is mentioned as being a requirement to offer Services such as reading for the blind.
This is untrue.  Previous generation of that service only required a received capable of decoding SCA
signals, and Radio reading service were most definitely not 'illegal to receive', required no subscription, and no conditional access.
The Boston COMINS project operated at MIT in the mid 1980s is another example of using the SCA channel.
rhyre (talk) 20:40, 22 June 2010 (UTC)
replies: text: The citation attached to that statement made no mention of conditional access. It did mention a demo of radio reading services, which apparently did not require conditional access to work. I also have trouble understanding why a technology similar to closed captioning (as the reference describes it) would require conditional access, seeing as CC has worked on broadcast television signals for decades. If somebody can find a reference that doesn't contradict that statement, excellent, but for the time being it doesn't seem to belong here. --Aurochs (Talk | Block) 16:30, 2 September 2012 (UTC)
thread_title:  Conditional Access assertion untrue 

message: The comparison with DAB does not seem to mention how it performs in mobile environment with the effects of multipath, DAB was designed specifically for use in cars and does not suffer from the distortion experienced with FM where there is multipath.  HD Radio is based on an FM transmission so how does it compare?--jmb (talk) 23:49, 18 July 2010 (UTC)
thread_title: Comparison with DAB

message: Hd radio has now been around awhile. AM Hd is really cool when rolled out right but it rarely is done. News AM station in Dallas and College station sound well. A small AM Disney station in Houston, does sound really well. You could use the format to put old music back on the radio. The station in question sounds awesome. I have never Got am digital at home. Only on my mobile unit. I am the HD boy, I own 4 radios. Tuner, portable, table, and a great inexpensive car radio by JVC. They all vary in reception. All radio's do. Also how someone rolls out HD makes a huge difference on how it sound. Some HD ones sound great. I have heard some roll-outs with no back ground noise, no articulation and just great sound. Most twos sound a little articulated. If you read HD white papers, (I have) they talk about what files to encrypt and not to process. Wrong file, it will sound bad. Stations even mix them. The mask is a little small. You basically need to be in the target area of the station. The DXing at this point is just for those who live in the area of broadcast. Get a car unit. Oh lets talk mobile. My JVC is great. I can get great sound in target areas well. I just replaced a Honda radio with it and it works fine. Most two (HD-2) stations hold up well under bridges and buildings. Most DX sadly live, quiet retired lives out in the country, where you need a home antenna to even get analog FM. Big steel does work rurally and you can get a nearby market ok on HD. Where HD really is cool is the multi signals. Old formats are brought back, bad AM are FMed, and some other formats could go national. HD will rock win the stations figure out how to make money. The non profits are having all kinds of fun with it. San Antonio, Texas got an African American station back. Houston got Christian rock. The internet is also a boon two these two stations. As for the haters, these guys sound like early Americans who hated electricity and phones. They forget that when FM rolled out no one, no one cared. Am stations where given FM licenses for free and did nothing with them. Later it mattered. HD can be a good median to expand the band, but not turn the lights off on real band. And oh by the way, Radio is still free.  — Preceding unsigned comment added by Scottradioman (talk • contribs) 02:44, 29 March 2011 (UTC)
thread_title:  Hd in 2011 

message: Hello fellow Wikipedians,
I have just added archive links to  on HD Radio. Please take a moment to review my edit. If necessary, add  after the link to keep me from modifying it. Alternatively, you can add  to keep me off the page altogether. I made the following changes:
*Added archive https://web.archive.org/20071103013650/http://www.mediaweek.com:80/mw/news/tvstations/article_display.jsp?vnu_content_id=1003561802 to http://www.mediaweek.com/mw/news/tvstations/article_display.jsp?vnu_content_id=1003561802
*Added archive https://web.archive.org/20081216004340/http://www.codingtechnologies.com:80/products/sbr.htm to http://www.codingtechnologies.com/products/sbr.htm
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thread_title:  External links modified 

message: I noticed there's nothing in the article about the emergency and traffic alert capabilities of HD, via scrolling text messages.  There's a whole section on the Crutchfeld site called transmission of additional information [] but it's not the most reliable source, since they sell the radios.  Will keep looking for a better, neutral source.Timtempleton (talk) 18:22, 27 April 2016 (UTC)
thread_title:  Article is weak on additional transmission benefits 

message: Hello fellow Wikipedians,
I have just modified  on HD Radio. Please take a moment to review my edit. If you have any questions, or need the bot to ignore the links, or the page altogether, please visit this simple FaQ for additional information. I made the following changes:
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thread_title:  External links modified 

message: Hello fellow Wikipedians,
I have just modified 9 external links on HD Radio. Please take a moment to review my edit. If you have any questions, or need the bot to ignore the links, or the page altogether, please visit this simple FaQ for additional information. I made the following changes:
*Added archive https://web.archive.org/web/20090108040523/http://www.ce.org/Press/CEA_Pubs/2068.asp to http://www.ce.org/Press/CEA_Pubs/2068.asp
*Added archive https://web.archive.org/web/20090121104611/http://hdradio.com/how_does_hd_digital_radio_sound.php to http://www.hdradio.com/how_does_hd_digital_radio_sound.php
*Added archive https://web.archive.org/web/20090325090032/http://www.v-soft.com/web/IBOC%20Coverage%20and%20Interference%20Issues2.pdf to http://www.v-soft.com/web/IBOC%20Coverage%20and%20Interference%20Issues2.pdf
*Added archive https://web.archive.org/web/20090111041932/http://www.diymedia.net/feature/fdigital2.htm to http://www.diymedia.net/feature/fdigital2.htm
*Added  tag to http://www.fcc.gov/fcc-bin/audio/DA-10-208A1.pdf
*Added archive https://web.archive.org/web/20081216004432/http://www.bridgeratings.com/press_08.08.07.HDvsInternet.htm to http://www.bridgeratings.com/press_08.08.07.HDvsInternet.htm
*Added archive https://web.archive.org/web/20110714165459/http://www.nethfm.com/site/our-technology.html to http://www.nethfm.com/site/our-technology.html
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*Added archive https://web.archive.org/web/20070930033358/http://www.fcc.gov/mb/audio/digital/ to http://www.fcc.gov/mb/audio/digital/
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thread_title:  External links modified 

message: I would like some answer on:
AM HD Radio coverage distance.
That is for example: Can I receive any American digital HD radio  on AM antenna in Europe?
Is digital reception possible in Europe?
I do not really know what is even AM analog distance.
But I suppose it could be possible.  — Preceding unsigned comment added by 85.221.231.106 (talk) 18:31, 26 December 2019 (UTC)
thread_title:  AM HD Radio coverage distance 

message: Regarding receiving different digital and analog stations, it says:  there is no way for the receiver to recognize that there is no correlation between the two.  It seems to me that it can't be harder than Shazam. Gah4 (talk) 09:50, 15 April 2021 (UTC)
thread_title:  '' there is no way for the receiver to recognize that there is no correlation between the two''