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Author Topic: FM IBOC Power Increase Sought  (Read 12398 times)
KB1OKL
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FM IBOC Power Increase Sought
« on: June 13, 2008, 08:25:43 PM »


http://www.rwonline.com/dailynews/index.cgi


A group of broadcasters and equipment manufacturers now has formally asked the Federal Communications Commission to approve increasing the allowable FM IBOC digital operating power by up to 10 dB, from the current –20 dB to –10 dB.

[EDIT]

Now the excrement hits the fan.

[EDIT-post truncated because originating material is copyrighted. Unauthorized use of copyrighted content is in violation of Radio-Info's TOS.]
« Last Edit: June 13, 2008, 08:37:30 PM by Board Editor 3 » Logged
SUPERCASTER
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Re: FM IBOC Power Increase Sought
« Reply #1 on: June 14, 2008, 09:39:33 AM »


http://www.rwonline.com/dailynews/index.cgi


A group of broadcasters and equipment manufacturers now has formally asked the Federal Communications Commission to approve increasing the allowable FM IBOC digital operating power by up to 10 dB, from the current –20 dB to –10 dB.

[EDIT]

Now the excrement hits the fan.

[EDIT-post truncated because originating material is copyrighted. Unauthorized use of copyrighted content is in violation of Radio-Info's TOS.]

I would have liked to have seen the rest of your post unedited. Could KB1OKL please provide us with links to the unauthorized copyrighted content?
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"HD RADIO- MAKES FM SOUND LIKE AM, AND AM SOUND LIKE CRAP!"
Play Freebird
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Re: FM IBOC Power Increase Sought
« Reply #2 on: June 14, 2008, 02:05:43 PM »


I would have liked to have seen the rest of your post unedited. Could KB1OKL please provide us with links to the unauthorized copyrighted content?


This is the link (posted in his original message):
http://www.rwonline.com/dailynews/index.cgi

On the same page, I note with interest (under the headline Newberry Takes NAB Radio Board Top Slot) that both the radio and TV boards of NAB decided to adopt a resolution opposing the use of Channels 5 and/or 6 for radio broadcasting.   

Here we have 12 MHz of prime VHF spectrum that will become largely vacant next February, a band where existing AM stations could simulcast their digital signals and avoid the nightly IBOC skywave disaster.  VHF would also be easier to incorporate into mobile phones (as discussed in the preceding article), but NAB doesn't have the foresight or common sense to investigate the Channel 5/6 proposal further.   

Instead, the TV Board apparently would rather invite new applicants to file to build new stations on those channels and allow these operators to take a slice of local TV revenue.   

Who can explain the logic here?



« Last Edit: June 14, 2008, 02:07:46 PM by Play Freebird » Logged
Chuck
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Re: FM IBOC Power Increase Sought
« Reply #3 on: June 14, 2008, 05:46:10 PM »


Who can explain the logic here?


It is just a guess, but they probably see more money in TV than they do in radio.  Historically, NAB hasn't been all that helpful to radio since they produced the famous Stan Freeburg - Sarah Vaughn  "Who Listens to Radio?" spots back in the 1960's.

If you ever want to understand the motivations of NAB, I suggest following the money.


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w9wi
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Re: FM IBOC Power Increase Sought
« Reply #4 on: June 14, 2008, 07:29:19 PM »

On the same page, I note with interest (under the headline Newberry Takes NAB Radio Board Top Slot) that both the radio and TV boards of NAB decided to adopt a resolution opposing the use of Channels 5 and/or 6 for radio broadcasting.   

Here we have 12 MHz of prime VHF spectrum that will become largely vacant next February, a band where existing AM stations could simulcast their digital signals and avoid the nightly IBOC skywave disaster.  VHF would also be easier to incorporate into mobile phones (as discussed in the preceding article), but NAB doesn't have the foresight or common sense to investigate the Channel 5/6 proposal further.   

I think a plan to add only channels 5 and 6 as radio spectrum would have some serious holes in it.  In many markets it wouldn't add any available room at all.  (Nashville, Memphis, Philadelphia, Albany just to name a few)  While a lot of TV stations are indeed leaving these channels, some are staying. 

And it's way too late to tell them to go somewhere else.  At least one has already completed its channel 5 DTV facility & tested it on the air.  Moving these stations would have a "domino effect", forcing other stations to move as well.  It would postpone the DTV transition for at least a year and cost millions of dollars.  It won't happen.

What *could* be done is to allot the entire 2-6 band for radio *on a secondary basis to DTV*.  Some of this spectrum should be available pretty much everywhere.

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tripinva
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Re: FM IBOC Power Increase Sought
« Reply #5 on: June 14, 2008, 10:32:36 PM »

I think the FCC will eventually eliminate channels 2-6 anyway.  Reserving a whole band for less than 50 full-service stations is stupid.  The ones that are there will quickly figure out that they made a horrible mistake when viewers start calling in with complaints because they can't see anything, or what they see is riddled with pixels and dropouts.  I have first-hand experience with low-VHF digital, it's no fun.  My father has almost given up on PBS, we've done pretty much everything we can and it still is useless most of the time while the UHF digitals from the same location max out the signal meter.

What happens to channels 2-6 is another story.  I, too, would like an expanded FM, with daytimers and Class C AM stations being allowed to relocate to the spectrum currently used by channels 2-4, but I'm not sure it would ever actually happen.

Either way, I don't expect to see channels 2-6 sticking around.

- Trip
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Play Freebird
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Re: FM IBOC Power Increase Sought
« Reply #6 on: June 14, 2008, 10:42:43 PM »


What *could* be done is to allot the entire 2-6 band for radio *on a secondary basis to DTV*.  Some of this spectrum should be available pretty much everywhere.


My thoughts exactly.  I realize it would be difficult to completely clear 5 and 6 of full service TV stations, but in almost every market where one of those channels will remain in use, the other is vacant, leaving 6 Mhz of spectrum between 76 and 88 MHz available for other uses.    As I've mentioned before, there is already a precedent for shared use of Channel 6 by radio stations:  FM Channel 200.

LPTVs and translators should be put on 2, 3, or 4 rather than 5 and 6.   Unless the FCC steps in to prohibit abuse, many LPTV licensees will ask to move to Channel 6 so they can program their aural transmitters as "FM 87.7" and waste the remaining 5.8 MHz.   





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Chad-Stevens
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Re: FM IBOC Power Increase Sought
« Reply #7 on: June 15, 2008, 02:35:15 PM »

Regarding 54/76 through 88 MHz for radio, vis a vis HD Radio:  Wouldn't these lower freqs, be undesirable for digital radio for the same reasons as they are for digital TV broadcasts, what with the skip and all?

Don't get me wrong, I'd LOVE to see them added to the FM band, though I only propose 76 MHz as the bottom as Japan-spec radios, most of which tune 76-108, could be imported immediately.  Even if some markets could only use a portion of the new spectrum, it could conceivably relieve HUNDREDS of AM daytimers.
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tripinva
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Re: FM IBOC Power Increase Sought
« Reply #8 on: June 15, 2008, 04:01:58 PM »

Skip would still be a problem, but from what I've read, FM isn't affected by impulse noise in the same way that the AM video and digital signals are.  That's the biggest problem with using those for any kind of video.

- Trip
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audiophile.
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Re: FM IBOC Power Increase Sought
« Reply #9 on: June 16, 2008, 06:14:00 AM »

OK THE GAME IS ON.

13 broadcasters have filed to turn the FM band into a vast wastland:

http://www.rbr.com/radio/filing_hd_radio_power_increase_broadcasters.html

http://www.rbr.com/files.php?file=Request_for_Increased_Digital_FM_Power_484952980.pdf
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