KGO listener IBUZZ'ED off station

[PocketRadio]

"More bad sound quality on KGO"

"I've been getting a hum or buzz on KGO for about a month. Sometimes it's so bad I have to change stations. I'm in Palo Alto not far from the transmitter (2-3 miles). I used to be able to hear Morse code in the background on this station, but this is a new problem."

"Around 9 a.m. this morning I was heading south on the Golden Gate Bridge and through the Richmond. The network news and Ronn Owens sounded as if they were on cell phones calling into to the studio. To make sure it was not my radio I went to KCBS and KNBR and both sounded fine."

http://tinyurl.com/3blnrd

"KGO nighttime IBOC?"

"I was listening to David Lazarus and heard the audio go flat and background noise increase. I thought the transmitter was going south, but sure enough, there were IBOC sidebands. The switch was around 8:13PM"

"Yes. That's what you heard. You have good ears! We've been having problems with the IBOC box and wanted to be sure that it would work in the morning if I set it to do so (It won't). You may hear more funny business tomorrow, but we'll certainly try to keep it tame. Sorry about the interruption. I'm pretty annoyed. It lost its settings. You heard the "flat" audio because the internal 5khz filter had switched itself in. (Sounded AWFUL! didn't it?). Industry experts keep telling me that listeners can't hear the difference. Sorry, that's crap! Right now, it works except that there is no digital audio (IBOC audio) present. I suspect a problem with the audio card in the box but will do more testing tomorrow. I have a hard time believing that there are people who think that the 5khz filter is a good idea. Sorry, I just can't agree with that, especially when you crank out a bunch of compressed, satellite or codec delivered programming. It's just a honking awful mess."

http://tinyurl.com/22jush

I'm sure, just one of many ! What pathetic engineering !

 

[davideduardo]

"I've been getting a hum or buzz on KGO for about a month. Sometimes it's so bad I have to change stations. I'm in Palo Alto not far from the transmitter (2-3 miles). I used to be able to hear Morse code in the background on this station, but this is a new problem."


I'm sure, just one of many ! What pathetic engineering !

The simple answer has nothing to do with HD. But it is related to the reception of marine telegraphy in the past.

Palo Alto is smack in the KGO null. It has less than 1000 watts in the null. Any kind of man-made interference is going to affect it badly.

 

[PocketRadio]

"I've been getting a hum or buzz on KGO for about a month. Sometimes it's so bad I have to change stations. I'm in Palo Alto not far from the transmitter (2-3 miles). I used to be able to hear Morse code in the background on this station, but this is a new problem."


I'm sure, just one of many ! What pathetic engineering !

The simple answer has nothing to do with HD. But it is related to the reception of marine telegraphy in the past.

Palo Alto is smack in the KGO null. It has less than 1000 watts in the null. Any kind of man-made interference is going to affect it badly.

Looks like KGO's broadcast engineer disagrees with you:

"KGO nighttime IBOC?"

"Yes. That's what you heard. You have good ears! We've been having problems with the IBOC box and wanted to be sure that it would work in the morning if I set it to do so (It won't). You may hear more funny business tomorrow, but we'll certainly try to keep it tame. Sorry about the interruption. I'm pretty annoyed. It lost its settings. You heard the "flat" audio because the internal 5khz filter had switched itself in. (Sounded AWFUL! didn't it?). Industry experts keep telling me that listeners can't hear the difference. Sorry, that's crap! Right now, it works except that there is no digital audio (IBOC audio) present. I suspect a problem with the audio card in the box but will do more testing tomorrow. I have a hard time believing that there are people who think that the 5khz filter is a good idea. Sorry, I just can't agree with that, especially when you crank out a bunch of compressed, satellite or codec delivered programming. It's just a honking awful mess."

http://tinyurl.com/22jush

 

[R.F. Burns]

"I've been getting a hum or buzz on KGO for about a month. Sometimes it's so bad I have to change stations. I'm in Palo Alto not far from the transmitter (2-3 miles). I used to be able to hear Morse code in the background on this station, but this is a new problem."


I'm sure, just one of many ! What pathetic engineering !

The simple answer has nothing to do with HD. But it is related to the reception of marine telegraphy in the past.

Palo Alto is smack in the KGO null. It has less than 1000 watts in the null. Any kind of man-made interference is going to affect it badly.

Looks like KGO's broadcast engineer disagrees with you:

"KGO nighttime IBOC?"

"Yes. That's what you heard. You have good ears! We've been having problems with the IBOC box and wanted to be sure that it would work in the morning if I set it to do so (It won't). You may hear more funny business tomorrow, but we'll certainly try to keep it tame. Sorry about the interruption. I'm pretty annoyed. It lost its settings. You heard the "flat" audio because the internal 5khz filter had switched itself in. (Sounded AWFUL! didn't it?). Industry experts keep telling me that listeners can't hear the difference. Sorry, that's crap! Right now, it works except that there is no digital audio (IBOC audio) present. I suspect a problem with the audio card in the box but will do more testing tomorrow. I have a hard time believing that there are people who think that the 5khz filter is a good idea. Sorry, I just can't agree with that, especially when you crank out a bunch of compressed, satellite or codec delivered programming. It's just a honking awful mess."

http://tinyurl.com/22jush

Wow, what insite. Hey did you check out KGO's ratings in San Francisco before you posted that nonesense?

KGO-AM ABC Radio News/Talk 6.3 5.6 6.1 5.7 5.5

Apparently the IBOC must have driven all their listeners away.
KGO is the number one station in the market. Better luck next time.

 

[PocketRadio]

"I've been getting a hum or buzz on KGO for about a month. Sometimes it's so bad I have to change stations. I'm in Palo Alto not far from the transmitter (2-3 miles). I used to be able to hear Morse code in the background on this station, but this is a new problem."


I'm sure, just one of many ! What pathetic engineering !

The simple answer has nothing to do with HD. But it is related to the reception of marine telegraphy in the past.

Palo Alto is smack in the KGO null. It has less than 1000 watts in the null. Any kind of man-made interference is going to affect it badly.

Looks like KGO's broadcast engineer disagrees with you:

"KGO nighttime IBOC?"

"Yes. That's what you heard. You have good ears! We've been having problems with the IBOC box and wanted to be sure that it would work in the morning if I set it to do so (It won't). You may hear more funny business tomorrow, but we'll certainly try to keep it tame. Sorry about the interruption. I'm pretty annoyed. It lost its settings. You heard the "flat" audio because the internal 5khz filter had switched itself in. (Sounded AWFUL! didn't it?). Industry experts keep telling me that listeners can't hear the difference. Sorry, that's crap! Right now, it works except that there is no digital audio (IBOC audio) present. I suspect a problem with the audio card in the box but will do more testing tomorrow. I have a hard time believing that there are people who think that the 5khz filter is a good idea. Sorry, I just can't agree with that, especially when you crank out a bunch of compressed, satellite or codec delivered programming. It's just a honking awful mess."

http://tinyurl.com/22jush

Wow, what insite. Hey did you check out KGO's ratings in San Francisco before you posted that nonesense?

KGO-AM ABC Radio News/Talk 6.3 5.6 6.1 5.7 5.5

Apparently the IBOC must have driven all their listeners away.
KGO is the number one station in the market. Better luck next time.

Higher ratings, more listeners to drive away - better-luck-next-time !

 

[R.F. Burns]

"I've been getting a hum or buzz on KGO for about a month. Sometimes it's so bad I have to change stations. I'm in Palo Alto not far from the transmitter (2-3 miles). I used to be able to hear Morse code in the background on this station, but this is a new problem."


I'm sure, just one of many ! What pathetic engineering !

The simple answer has nothing to do with HD. But it is related to the reception of marine telegraphy in the past.

Palo Alto is smack in the KGO null. It has less than 1000 watts in the null. Any kind of man-made interference is going to affect it badly.

Looks like KGO's broadcast engineer disagrees with you:

"KGO nighttime IBOC?"

"Yes. That's what you heard. You have good ears! We've been having problems with the IBOC box and wanted to be sure that it would work in the morning if I set it to do so (It won't). You may hear more funny business tomorrow, but we'll certainly try to keep it tame. Sorry about the interruption. I'm pretty annoyed. It lost its settings. You heard the "flat" audio because the internal 5khz filter had switched itself in. (Sounded AWFUL! didn't it?). Industry experts keep telling me that listeners can't hear the difference. Sorry, that's crap! Right now, it works except that there is no digital audio (IBOC audio) present. I suspect a problem with the audio card in the box but will do more testing tomorrow. I have a hard time believing that there are people who think that the 5khz filter is a good idea. Sorry, I just can't agree with that, especially when you crank out a bunch of compressed, satellite or codec delivered programming. It's just a honking awful mess."

http://tinyurl.com/22jush

Wow, what insite. Hey did you check out KGO's ratings in San Francisco before you posted that nonesense?

KGO-AM ABC Radio News/Talk 6.3 5.6 6.1 5.7 5.5

Apparently the IBOC must have driven all their listeners away.
KGO is the number one station in the market. Better luck next time.

Higher ratings, more listeners to drive away - better-luck-next-time !

Very crteative... Wrong but very creative. What it does prove is that you have no idea about broadcasting. What's it like to be the Ed Wood of this radio board?

 

[JbeJay]

Wrong but very creative. What it does prove is that you have no idea about broadcasting. What's it like to be the Ed Wood of this radio board?

Ah, but Pocket does have a point of view: "HD is bad. HD is doomed. HD is a failure."

Now, it's possible that that is true, of course, but there is a subtle way to say it -- and then there is Pocket's way of saying it, and saying it, and saying it, and saying it.

Jay

 

[clouseau]

Wrong but very creative. What it does prove is that you have no idea about broadcasting. What's it like to be the Ed Wood of this radio board?

Ah, but Pocket does have a point of view: "HD is bad. HD is doomed. HD is a failure."

Now, it's possible that that is true, of course, but there is a subtle way to say it -- and then there is Pocket's way of saying it, and saying it, and saying it, and saying it.

Jay

I personally like the first thread he quotes. It's about general reception. Only one brief mention of HD as being the culprit. Suggested by... HIM.

Truly a legend in his own mind.

Clouseau

We now return you to your regularly scheduled irrelevant link.... coming up next...

 

[davideduardo]

Looks like KGO's broadcast engineer disagrees with you:

The quote you posted is from several weeks ago. It has nothing with the ongoing interference in KGO's null that people have noticed for the last 60 years.

"KGO nighttime IBOC?"

Night HD is not yet authorized.

"Yes. That's what you heard. You have good ears! We've been having problems with the IBOC box and wanted to be sure that it would work in the morning if I set it to do so....

Again, one test several weeks ago. This has nothing to do with hearing first code and then noise on 810 in KGO's very, very sharp null.

 

[SUPERCASTER]

Looks like KGO's broadcast engineer disagrees with you:

The quote you posted is from several weeks ago. It has nothing with the ongoing interference in KGO's null that people have noticed for the last 60 years.

"KGO nighttime IBOC?"

Night HD is not yet authorized.

"Yes. That's what you heard. You have good ears! We've been having problems with the IBOC box and wanted to be sure that it would work in the morning if I set it to do so....

Again, one test several weeks ago. This has nothing to do with hearing first code and then noise on 810 in KGO's very, very sharp null.

The funny thing about this is that while KGO's analog main carrier and sidebands may be nulled by KGO's directional antenna, the digital HD on adjacent channels may not necessarily have been equally nulled, therefore making the iBuzz much louder and more annoying.

I wonder why the FCC approved HD Radio's defective technology. Oh yes, I forgot. Once again it was politics and lobbyists that triumphed over good engineering.

 

[davideduardo]

[
The funny thing about this is that while KGO's analog main carrier and sidebands may be nulled by KGO's directional antenna, the digital HD on adjacent channels may not necessarily have been equally nulled, therefore making the iBuzz much louder and more annoying.

How do you figure that a phasor, which is frequency sensitive, could opperate differently for the analog or digital portion of a broadcast on the same frequency?

 

[PhilJSmith67]

Oh come on David, you've got as much technical experience out here as anyone out here, so don't start playing stupid. You know as well as anyone else that IBOC's primary and secondary ensembles are not transmitted on the analog channel. They are transmitted almost completely on the adjacent channels. And, as an engineer, you know full well that the pattern produced by a parasitic element phased for a specific frequency can vary greatly from the patterns +/- 10 to 20 kHz.

 

[clouseau]

Now ladies and gentlemen, we present a non engineering opinion to explain a general reception issue of a directional station from a person who is not an engineer, lives across the country from where it happened, and has a bias against HD RADIO.

The funny thing about this is that while KGO's analog main carrier and sidebands may be nulled by KGO's directional antenna, the digital HD on adjacent channels may not necessarily have been equally nulled, therefore making the iBuzz much louder and more annoying.

You are correct. This "could" be the reason. It could also be LED traffic lights, Patterns out of whack. A bad IBOC exciter (Which the engineer DID say was the case) or any one of a multitude of ills.

I wonder why the "Anti" people are so hell bent on blaming the fading of the paint on the Golden Gate Bridge and the mold growing in the Liberty Bell on off channel radiation in HD radio?

There ARE some legitimate concerns with HD on AM. This doesn't seem to be one of them as best I can tell.

Clouseau

 

[davideduardo]

Oh come on David, you've got as much technical experience out here as anyone out here, so don't start playing stupid. You know as well as anyone else that IBOC's primary and secondary ensembles are not transmitted on the analog channel. They are transmitted almost completely on the adjacent channels. And, as an engineer, you know full well that the pattern produced by a parasitic element phased for a specific frequency can vary greatly from the patterns +/- 10 to 20 kHz.

Actually, the HD data is transmitted in the sidebands of the AM stations, not adjacent channels. The reason one hears HD data "on" adjacent channels is the overlap of the sidebands of the adjacent: a station on 700 occupies per NRSC standards, 690 to 710. A station on 710 occupies 700 to 720. So if you tune 710 in the usable signal area of a 700 kHz station, you will get the legal, licenced sideband data of 700.

Yeah, the Q of a directional phasor is so frequency specific as to generally be waaaaaaaaaaaaaaay down as close in as 10 kHz to either side, with asymetrical reactive curves. This is why many directional stations that were not designed to be broadband (nearly flat +/- 10 kHz) can not successfully broadcast HD... the shape of the passband of the phasor is too sharp to accomodate HD.

In just about every licensed DA systems, the system is much MORE restricited as one moves away from the carrier frequency as dedsigning a broadband directional is vastly more expensive and, moreso, hard to tune.

Within the licensed 20 kHz bandwidth, the system will perform pretty much identically whther the signal is the analog or digital one.