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Some more AM IBOC interference problems coming out of the closet?

See "Detroit Pistons moved to CBS due to HD Radio interference?" here:
http://www.rbr.com/radio/detroit-pistons-moved-to-cbs-due-to-hd-radio-interference.html

Isn't it fitting that one of the two stations clobbering Cheap Channel station WDFN's nighttime signal with useless Hash Disturbance (TM) noise is another Cheap Channel Station?

Less just is the fact that the other "HD" noise generator rendering WDFN unlistenable at night belongs to CBS, whose Detroit AM-FM simulcast is benefitting from the interference.
 
Re: Detroit Pistons moved due to "HD" interference?

I'm just wondering why radio keeps the lid on this stuff, it is obviously happening a lot more than anyone in radio admits, especially on the AM side. Are people who work in radio THAT afraid of the IBOC Alliance, companies like CBS etc. that invested money in this scam? This happened two years ago and it was pretty much a secret until now??
 
Re: WDFN Interference

I'm wondering when or if radio is going to go up in arms about this stuff or just let Horrible Distortion continue to go limping off into the night as it has been?
 
Re: Detroit Pistons moved due to "HD" interference?

KB1OKL said:
I'm just wondering why radio keeps the lid on this stuff, it is obviously happening a lot more than anyone in radio admits, especially on the AM side. Are people who work in radio THAT afraid of the IBOC Alliance, companies like CBS etc. that invested money in this scam? This happened two years ago and it was pretty much a secret until now??
Click to expand...

Let's separate fact from fiction.

HD on AM began as an afterthought, and has done nothing to improve the dwindling and failing AM. At best, it only sounds good on a few stations that have had the time and the money and engineering talent to optimize the entire station. At worst, it has limited coverage and the dueling codecs from cell phone calls and news, digital storage and processing fight with the HD codec and it sounds awful.

But...

The HD Alliance is just a bunch of stations and companies that have agreed to run the same HD promotion campaigns. The groups that are in it include some of the ones that put some money in iBiquity and some that did not, but not all of either. It has no power other than being a promotion vehicle for the stations.

And the compaies that invested in iBiquity put relatively small amounts of money in iBiquity, basically seed capital to try to encourage the development of an in-band digital system. I believe most thought of it as a donation that might have benfitted radio, and not as a major investment expected to yield returns.
 
This from Radio & Television Business Report 1/26/11:

Pete Skorich, Detroit Pistons Director of Broadcasting, addressed a rumor that RBR-TVBR heard regarding a rate reduction in The Detroit Pistons contract with Clear Channel’s Sports WDFN-AM 1130 kHz over poor reception in the evenings. Details had it that 50-kW KMOX St. Louis (1120) and 50-kW WRVA Richmond (1140) were killing WDFN’s nighttime signal because of their skywave HD Radio carriers on 1130. Well, Skorich tells us there was no rate reduction but instead a complete move to CBS Radio’s The Ticket (WXYT) simulcast of 97.1 and 1270 some two years ago.

But he did note it was because of reception complaints: “That was one of the components, and we were with them for five years. They had a weak signal and we were getting a lot of people that could not hear us. It could have been [because of] HD Radio, but at the time we were totally unaware of it.”

Could this be Pandora's box finally staring to open for IBOC?

more at:

http://www.rbr.com/radio/detroit-pistons-moved-to-cbs-due-to-hd-radio-interference.html
 
I can't even listen to my local AM stations anymore. It's as if there's IBOC on every channel....but, it's actually just screaming noise from the hundreds of LCD and Plasma TV sets in my neighborhood. I wonder how many people who think they are getting IBOC interference, are actually hearing THAT stuff, instead?

I'm thinking about getting with some of the FCC guys, and seeing if it's possible to update their website with some Interference Troubleshooting info, and stream some examples of different interference for people to use for identifying RFI.
 
kenglish said:
I can't even listen to my local AM stations anymore. It's as if there's IBOC on every channel....but, it's actually just screaming noise from the hundreds of LCD and Plasma TV sets in my neighborhood. I wonder how many people who think they are getting IBOC interference, are actually hearing THAT stuff, instead?

I'm thinking about getting with some of the FCC guys, and seeing if it's possible to update their website with some Interference Troubleshooting info, and stream some examples of different interference for people to use for identifying RFI.
Click to expand...

Very east to differentiate iBlock noise from other forms of noise, IBOC sounds like a rushing low frequency white noise and surrounds the carrier of the offending station. as much as 30 Khz-40Khz on either side.
 
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