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WFAN Now running IBOC

A

autopaint-1

Guest
WFAN (660 Khz 50K 1A) is now running its IBOC exciter.
 
and there's at least one more NY 1A on the way. Been listening to WFAN all mrning in beautiful HD and it sounds great. Sounds more like a STL than an AM broacaster (SBE 15 here)
 
Glad you like the digital. But the analog would sound even better if they restored the bandwidth, you had a receiver that didnt chop off the audio, and they would be less agressive with the processor. In fact, my bet if you did a side by side you would pick the analog over the digital anytime. I remember when AM used to sound good.
 
"Glad you like the digital. But the analog would sound even better if they restored the bandwidth, you had a receiver that didnt chop off the audio, and they would be less agressive with the processor. In fact, my bet if you did a side by side you would pick the analog over the digital anytime. I remember when AM used to sound good."

Glad you like analogue AM. Yes it can sound great if you are in a very strong field and there is NO outside interference (and of course no summer noise). Yep AM can sound good but sadly no one under the age of 30 listens to most AM radio stations and wouldn't even if they programed music. When you are competing with FM, Ipods, and the satelites to name a few you have to at least sound competitive, when it comes to audio quality. In a market like NY using wide band filtering would bring in so much noise from other stations, that it's not realistic. Although in our market most of the bog market english language stations are below 1200 Khz, there isn't a frequency without a station or two on it. At night forget anyhting above 1200 Khz. In this part of the world IBOC is a good thing. Better audio and much less noise (when using a IBOC radio that is). By the way I grew up listening to stations like WABC in the 60's and compared to FM, AM never sounded good. It was fine until we were able to make comparisons. Who's going to listen to an AM station (even in mono wideband mode) when you drive down the road hearing atmospheric, alternator or engine noise, when you can tune any number of relatively quiet FM facilities. Remember when you widen the passband on an AM radio you allow more interference to enter.
 
"HD Radio is very wideband, and subject to your statements as well."

WRONG!!!! IBOC signals do NOT extend outside the licensed bandwidth and thanks to error correction I haven't lost an IBOC signal during a thunder storm. Go out and buy a radio before you make these hearsay statements. Not everyone has or wants high speed internet. If you are a DXer and want to listen to DX I'd suggest you get on your high speed computer and listen to those "must hear" stations over the internet. You can join the MW DX century club in one afternoon over the internet. I live in a very RF congested area and NONE of the IBOC stations cause interference to any listenable radio station in this part of the country. Since WFAN has turned on their IBOC at 660 and WOR is running there's at 710 (Both 50K stations) I can still hear the 690 out of Conneticut ( and it's a relatively low power station) with no IBOC interference.I listend to WFAN yesterday in my car and heard not one instance of IBOC interefernce. Now my car radio is "channelized" in that I can't tune to 715 Khz so that might explain some things. My Super radio 3 (in normal) postion doesn't get any IBOC interference from a properly tuned IBOC signal either. If people are hearing IBOC under their analogue audio I'd suggest that they either don't know how to tune a radio or maybe they are mistaking normal analogue interference for IBOC. My B.A. and IBOC (WFAN sounds great!) brings new life to the AM broadcast band. I've heard another 50 K 1A is going IBOC within a week. It seems that the IBOC move is finally underway. Oh, if you are a DXer angered by the move to IBOC, might I suggest the SW bands or do what I did about 35 years ago, get your ham license. I've had an Extra for nearly 25 years and I am not happy about the move to no code tickets (My CW speed was about 40 wpm when I took my exam on Varick street), but I guess that's what they call progress. Specifically I know many of us in the pro IBOC camp would really love to know what the reason is for your obviously anti IBOC comments (and don't give me the it's not perfect BS because your anger goes deeper than that because you don't suggest any serious alternative to it. Radio Mondial is not compatible at all and the Khan system has issues such as poor quality of construction as well as other limitations (such as no commercial receivers available). The more I read about Khan the more I start thinking that he's nothing more than a spoiler and that doesn't serve the public good.
 
FM stereo, think again

OK so you think FM sounds better than AM? In some cases yes. but did you know that there is a very good chance that that FM station you listen to is being heard only in Mono. You will only get stereo when in a very strong field because again, the radio mfrs design the radios to blend to mono so that you wont complain of picket fencing, or interference caused by tall buildings or mountains. You hear very little about this, but try it. Stereo goes away quite close to the transmitter.
 
"OK so you think FM sounds better than AM? In some cases yes. but did you know that there is a very good chance that that FM station you listen to is being heard only in Mono. You will only get stereo when in a very strong field because again, the radio mfrs design the radios to blend to mono so that you wont complain of picket fencing, or interference caused by tall buildings or mountains. You hear very little about this, but try it. Stereo goes away quite close to the transmitter."

Well in my market (NYC) most FM transmission (but not all) comes from the Empire state building. That building is on 5th avenue at 33rd street. Now I realize there is some tilt built into the antenna systems so that the RF "hole" under the transmitter site isn't glaring. If that's what you mean by being near a transmitter site and losing the stereo subcarrier I understand what you mean. That said, I drive into NYC (midtown) every day from 25 miles north and guess what? I never lose the stereo subcarrier once. Yes it can happen and yes it can blend to mono (and by the way this blend feature is only on car radios. My component stereo doesn't do "blend). Is this David Sarnoff from the great beyond? FM audio quality is much better under many circumstances than AM. Take a look at an over the air television broadcast during a thunder storm. While you'll see all sorts of video distortion due to electrical interference, the audio remains uneffected. I feel like I'm fighting the Armstrong wars all over again. Sure under ideal circumstances AM can sound good and yes they came up with a few stereo methods (none of which was all that great and I have a handful of AM stereo radios so I speak from experience) but in today's world stereo Am is comperable to the old RCA video disc or even the Pioneer 12 inch video disc. Technology and time has passed these antiquated systems. Like it or not IBOC is starting to appear. As of this monent there are many more IBOC stations broadcasting in NYC than there ever were AM stereo stations. It's really great here. I listened to WFAN today switch from anolgue to IBOC and when they switched to the IBOC mode the noise disappeared and all of a sudden there was clean high end on AM. It sounded just like a 15 K broadcast loop and not. I receive WFAN as a local and even with my Superradio 3 in wide band mode the audio quality comes nowhere near what I hear in IBOC.As I mentioned to a friend of mine WFAN sounds much better than WCBS in IBOC. It all has to do with processing and WCBS has to make changes specifically to it's IBOC processing.
 
Here is the digital alternative for FM that does not does not jam adjacent channels:
www.dreinc.com
There is no need for a compatible digital FM broadcasting system to use adjacent channels!
The HD Radio/iBiquity system should not get final approval from the FCC because it creates additional unecessary off channel interference. HD Radio is a defective broadcasting system that is being hyped as the only alternative, and the wave of the future. Both statements are false.
There is a better alternative in spite of your false claims about iBiquity/HD Radio.
What is your obsession with DXers?
What's that all about?
AM radio already has enough noise and interference without adding digital buzz to the band to compound the problem.

You LOVE your HD Radio, many other's dont.

You claim there is no such thing as HD Radio interference, many others plainly hear it.

You claim using adjacent channels to transmit high duty cycle digital signals create no interference to analog broadcasting. Yet previous studies by NRSC clearly show even low intensity analog audio harmonics cause interference to adjacent channel stations.

I guess it all boils down to what the HD Radio ads say, "ARE YOU DEAF YET?"


autopaint-1 said:
"HD Radio is very wideband, and subject to your statements as well."

WRONG!!!! IBOC signals do NOT extend outside the licensed bandwidth and thanks to error correction I haven't lost an IBOC signal during a thunder storm. Go out and buy a radio before you make these hearsay statements. Not everyone has or wants high speed internet. If you are a DXer and want to listen to DX I'd suggest you get on your high speed computer and listen to those "must hear" stations over the internet. You can join the MW DX century club in one afternoon over the internet. I live in a very RF congested area and NONE of the IBOC stations cause interference to any listenable radio station in this part of the country. Since WFAN has turned on their IBOC at 660 and WOR is running there's at 710 (Both 50K stations) I can still hear the 690 out of Conneticut ( and it's a relatively low power station) with no IBOC interference.I listend to WFAN yesterday in my car and heard not one instance of IBOC interefernce. Now my car radio is "channelized" in that I can't tune to 715 Khz so that might explain some things. My Super radio 3 (in normal) postion doesn't get any IBOC interference from a properly tuned IBOC signal either. If people are hearing IBOC under their analogue audio I'd suggest that they either don't know how to tune a radio or maybe they are mistaking normal analogue interference for IBOC. My B.A. and IBOC (WFAN sounds great!) brings new life to the AM broadcast band. I've heard another 50 K 1A is going IBOC within a week. It seems that the IBOC move is finally underway. Oh, if you are a DXer angered by the move to IBOC, might I suggest the SW bands or do what I did about 35 years ago, get your ham license. I've had an Extra for nearly 25 years and I am not happy about the move to no code tickets (My CW speed was about 40 wpm when I took my exam on Varick street), but I guess that's what they call progress. Specifically I know many of us in the pro IBOC camp would really love to know what the reason is for your obviously anti IBOC comments (and don't give me the it's not perfect BS because your anger goes deeper than that because you don't suggest any serious alternative to it. Radio Mondial is not compatible at all and the Khan system has issues such as poor quality of construction as well as other limitations (such as no commercial receivers available). The more I read about Khan the more I start thinking that he's nothing more than a spoiler and that doesn't serve the public good.
 
"There is no need for a compatible digital FM broadcasting system to use adjacent channels!"

Tough, because IBOC is growing larger every day. You can scream all you want about how you don't like IBOC but you are wasting your time. We just got 2 new AM Iboc stations here in NY. That's 2, 50 K 1A clear channel stations and at least one more on the way soon. So go ahead and complain all you like. IBOC is coming on strong. Even during the hight of AM Stereo we never had as many stations operating that mode . We have between 20 & 25 streams as I type this and more are coming. I guess if you want your out of town stations you'll have to follow your own logic and listen on the computer. The days of DXing those weak out of market stations may be coming to an end. For the average listener that fact will pass and there will be little or no complaining about it. IBOC is coming on strong!!
 
The consumers will decide what happens, as was the case with all the other dead end "improved" systems like AM Stereo, FM Quad, etc.
If the consumers don't care enough to buy HD Radios, then you likely will wind up broadcasting to a handful of broadcast engineers, and a few curious "early adopters" with money to waste.
 
"The consumers will decide what happens,"

This has always been the case and the same will happen now.

"as was the case with all the other dead end "improved" systems like AM Stereo, FM Quad, etc."

Or it could be a success which is the other possibility you failed to mention.

"If the consumers don't care enough to buy HD Radios, then you likely will wind up broadcasting to a handful of broadcast engineers, and a few curious "early adopters" with money to waste."

And if changes aren't made and soon, the AM broadcast band will eventually go the way of many European Long Wave outlets and then there will be nothing to listen to in that spectrum. Today the audience for most medium wave stations is growing older and older and as those listeners die off (and they will) there will be no one to replace them, unless that band can be made more listenable than it is today.
 
autopaint-1 said:
And if changes aren't made and soon, the AM broadcast band will eventually go the way of many European Long Wave outlets and then there will be nothing to listen to in that spectrum. Today the audience for most medium wave stations is growing older and older and as those listeners die off (and they will) there will be no one to replace them, unless that band can be made more listenable than it is today.

I don't see where IBOC is going to accomplish this. Indeed, I fear widespread deployment of AM-IBOC could accelerate the decline of AM broadcasting.

At least in my experience, to get reliable HD reception, an AM station must be so strong that its *analog* signal is free of noise & interference. Going digital does improve the audio quality somewhat and eliminates some of the noise generated in the receiver's internal circuits, but the improvement really isn't all that dramatic. If IBOC would clean up the computer noise on the local NPR talk station (15kw on 1430 at about 20 miles) or clear up the nighttime interference on the local station in the county seat (35 watts at 8 miles on 790) then it would increase my time spent listening to AM. It won't. The digital won't work on either of these stations.

Many AM listeners tolerate a small amount of noise & interference to receive desired programs. WLAC continues to be a decently-rated station, despite a nighttime signal that's subject to some level of interference in many parts of the metro, especially at night. In areas where this noise exists, their HD signal won't. You might tolerate a bit of interference to listen to Rush or the UT basketball game, but you won't tolerate total silence!

Dropping the analog & going to digital-only mode may well clear up much of this trouble. Of course, it'll also throw away the 99.999% of your audience that doesn't have a HD receiver. How do you get that 99.999% to buy a HD radio, when it costs 1000% more (literally) than an analog set & much of the time, doesn't work any better for the hybrid-mode broadcasts that are on the air now?

(it would be interesting for someone with a duopoly to shut down one of their analog signals altogether, get a permit to operate that station in IBOC digital-only mode, and use it as a digital simulcast of the other analog signal. That may be a more effective way of arriving in a digital world.)
 
"At least in my experience, to get reliable HD reception, an AM station must be so strong that its *analog* signal is free of noise & interference."

I've already posted audio of WNYC a NY station on 820 Khz that in my computer room is riddled with locally generated noise. When the IBOC blend takes place the noise disappears. I am using a Boston Acoustics HD Receptor and I am about 30 miles north of the WNYC transmitter site.

"The digital won't work on either of these stations."

That's an unproven conclusion you've arrived at. Without testing you can only make assumptions as to what the viability is or is not. IN the NY metro area I am able to hear every market IBOC station AM&FM with my radio and a simple indoor antenna (dipole for fm and a small loop for the am. The radio comes with its own loop as well)

"Many AM listeners tolerate a small amount of noise & interference to receive desired programs. WLAC continues to be a decently-rated station, despite a nighttime signal that's subject to some level of interference in many parts of the metro, especially at night."

How many of those listeners are in the under 30 group? Young people who are those that advertisers want DO NOT listen to AM radio. I have two daughters, one is 19 and the other 21 and neither one has an AM station on their car radio preset. They don't listen to AM on their other radios. They don't like the poor fidelity or the noise associate with AM.

"You might tolerate a bit of interference to listen to Rush or the UT basketball game, but you won't tolerate total silence!"

Rush has an audience that's probably 40 years to dirt. Talk radio (especially conservative talk radio) has no appeal for younger people. IBOC on AM allows for the digital to blend into analogue and visa versa. If you lose IBOC it doesn't go to silence.



"Dropping the analog & going to digital-only mode may well clear up much of this trouble. Of course, it'll also throw away the 99.999% of your audience that doesn't have a HD receiver."

The same is happening in the world of television. Most people do not have HDTV's and yet analogue stations are do to shut down in the near future. Such is technology and the way of ouor world.


"(it would be interesting for someone with a duopoly to shut down one of their analog signals altogether, get a permit to operate that station in IBOC digital-only mode, and use it as a digital simulcast of the other analog signal. That may be a more effective way of arriving in a digital world.)"

At this time AM stations do not have the ability to stream more than a single channel of audio. Owners will not take the financial loss of basically turning off one radio station for streaming digital content to experiment..
 
Here is the important point, folks:
It is all about getting better and better signal to noise ratios.
Forget about frequency response, induced distortions, and everything else.
AM analogue has a very high ratio of signal area to relatively full quieting signal area; perhaps several dozen or several hundred to one.
FM analogue would be down to just a few to one.
With digital, the ratio becomes about 99.999% (it looks like a ninety six, but it is a percent sign); almost everywhere you can hear the station, you will hear it with a near infinite signal to noise ratio.
 
They don't like the poor fidelity or the noise associate with AM.
How does adding digital noise and adjacent channel digital buzz to 1 Billion AM and FM radios in North America help what you claim?
iBiqity HD radio adjacent channel digital is a defective, incompatible system. We need something better that does not jam current radios, and still provide digital quality, such as FMeXtra.
www.dreinc.com
Or a compatible AM system that can operate at night without causing jamming interference.

I'll wait a few extra months for the new radios just to have a truely compatible system. That way I only have to buy an new radio ONCE! It is better to wait then be sorry. Just like a bad marriage, a mistake can be costly and one you will have to live with a long time.
What is the big rush anyway, almost no one is buying the HD Radios.
Regarding signal to noise ratios, why destroy them more with adjacnt channel digital buzz?
If you get better signal to noise ratio but reduce the coverage, is that truely a benefit?
 
I guess this means you're going to look elsewhere for your entertainment and information. The broadcast industry will miss you.
 
"I guess this means you're going to look elsewhere for your entertainment and information. The broadcast industry will miss you."

Written like a very arrogant would-be monopolist. Ironically, it really won't be all that long before the industry WILL sorely miss all of the people that will have been driven away - and leaving is getting easier every day. WiMAX 802.16e-2005, mobile, wireless, broadband Internet access is set to take off starting in the first half of next year. Do I have to spell out what that will do for Internet radio, particularly in moving vehicles?
 
"Written like a very arrogant would-be monopolist. Ironically, it really won't be all that long before the industry WILL sorely miss all of the people that will have been driven away - and leaving is getting easier every day. WiMAX 802.16e-2005, mobile, wireless, broadband Internet access is set to take off starting in the first half of next year. Do I have to spell out what that will do for Internet radio, particularly in moving vehicles?
"

The first part of your reply is written like a very ignorant small market wanna be. Now having said that I will say the it has been my contention that in the end Wi-Fi will be the way broadcasts are delivered to the puiblic. That is one of the reasons that major broadcasters have rushed to get their audio on the internet. Wi-Fi access will be treated like a utility. What I find interesting is the anger and the bitterness in your words. I'll just say this, if history is any teacher while the traditonal networks have lost some of their audience to cable operations, they still hold the vast majority of the audience and there isn't any sign that it's diminishing. In the world of radio, it's the commecial operators who have the ability through their bureaus and deep pockets (relatively speaking) to provide more than just music streams. I have nearly 30 years at the network level (which is locate in NYC) and while you may think me arrogant because I hold certain differing views from your's, my view is somewhat different. I am speaking from practical real world experience having worked for many years with great and many legendary broadcasters, who have passed on their expertise. You odn't agree? That is your right, but don't question my honesty or legitimacy as a long time broadcast professional who still works at the highest level in the industry.
 
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