Am HD Station Check List

[Chuck]

Barry McLarnon, has compiled a list of stations using HD on AM. It is quite interesting. He counts 222 on the air (more or less). As I mentioned in an earlier post, out of some 4500+ AM stations, that is not exactly an overwhelming percentage. (5% roughly)

Barry's list is at: http://topazdesigns.com/iboc/station-list.html

 

[dbdigital]

I've taken note of the stations in my area running IBOC that are on that list as well as printed out a list of local AM stations from Radio-Locator.

If I can study the nighttime contours for stations that are adjacent to the ones running HD and compare that to what I'm actually hearing on my best radio (clear, noisy or no signal), I figure I can come to some kind of conclusion as to whether HD on AM is a serious problem for local listening at night or not. DX'ing, of course, would be a different matter.

db

 

[davideduardo]

Barry McLarnon, has compiled a list of stations using HD on AM. It is quite interesting. He counts 222 on the air (more or less). As I mentioned in an earlier post, out of some 4500+ AM stations, that is not exactly an overwhelming percentage. (5% roughly)

It is nearly every viable full market coverage AM in the top 100 markets.

 

[Chuck]

Barry McLarnon, has compiled a list of stations using HD on AM. It is quite interesting. He counts 222 on the air (more or less). As I mentioned in an earlier post, out of some 4500+ AM stations, that is not exactly an overwhelming percentage. (5% roughly)

It is nearly every viable full market coverage AM in the top 100 markets.

Therein lies the problem. If 222 stations is all that is viable in the top 100 markets, what do you say to the other 4300 station owners and employees?

 

[Savage]

Before IBOC-huggers join WOR's Tom Ray in the "see!! SEE!!! The HD adjacent-channel interference ISN'T SO BAD!!" chorus (he was braying about "doom and gloomers" and the "apocalypse" in today's Inside Radio Online) you might want to take note of something potentially significant.

So far it appears NONE of the major CBS 50kw signals in the northeast/midwest have been running HD-AM at night. No IBOC sidebands noted from WBZ, WTIC, KDKA, KYW, WINS, KMOX, etc., as of 9pm 9/14, and none last night either. Just that short list removes a potential dozen shrill IBOC spurs from the AM dial.

WOR's IBOC noise as received here in Rochester is particularly obnoxious on 700 and 720. WABC's on 780 and 760 ditto - no longer possible to read WJR here any more.

Note to IBOCiacs: if you think the public and broadcasters are going to fall for the "boiled-frog" slo-mo HD-AM nighttime rollout as a means of avoiding interference complaints, forget it!

 

[hipporadio]

So far it appears NONE of the major CBS 50kw signals in the northeast/midwest have been running HD-AM at night. No IBOC sidebands noted from WBZ, WTIC, KDKA, KYW, WINS, KMOX, etc., as of 9pm 9/14, and none last night either. Just that short list removes a potential dozen shrill IBOC spurs from the AM dial.

1120 KMOX, St. Louis was indeed running IBOC on the evening of 9/13. I was listening to their “Two Johns – No Waiting” local show Thursday night BEFORE the midnight IBOC “starting gate”, and observed...

KMOX on 1120 appears to have “jumped the gun”—failing to even turn it off at local sunset. At 10PM [EDT], they ID’d: "1120 KMOX and KMOX-HD – St Louis"; and their digital sidebands were apparent on 1110 and 1130.

The Buzz-Saw is spinning at full speed this very moment on 1110 and 1130 courtesy of “The Mighty ‘MOX”

 

[4dude]

THIS IS RIDICULOUS.............

 

[jlehmann]

WTIC has had it on all night, it decoded a couple times here in MA. WFAN just turned theirs on when the game ended, goodbye WSM and WSCR.

 

[clouseau]

THIS IS RIDICULOUS.............

I agree.

Dozens of people claiming that there is interfernece to WLW 70 miles EAST of NYC.

Really sad.

Clouseau

 

[Savage]

Kind of an aside here, but not really:

I would like to publicly give props to Clouseau for his appearance last night on www.radioracket.com's gabfest on IBOC. It took cajones to walk into the anti-HD lions' den and mount a cogent, comprehensible defense of IBOC-AM. Overall George, Kyle & co. did a great job with almost two hours' worth of frank discussion about the pros and cons of the system.

I disagree with Clouseau about IBOC as do many other posters here. But he is a gentleman and a radio professional, which I wish were also true of a regular antagonist on radio-info who just called me a liar (in a separate thread.) And no, I do not intend to dignify that person with a response.

If we're going to get to the truth about IBOC we've all got to look at facts instead of emotion and undisclosed agendas, personal and professional.

 

[awj223]

I agree.

Dozens of people claiming that there is interfernece to WLW 70 miles EAST of NYC.

Really sad.

Clouseau

70 mi east of NYC is still within WLW's 50/50 skywave.

 

[SUPERCASTER]

Barry McLarnon, has compiled a list of stations using HD on AM. It is quite interesting. He counts 222 on the air (more or less). As I mentioned in an earlier post, out of some 4500+ AM stations, that is not exactly an overwhelming percentage. (5% roughly)

Barry's list is at: http://topazdesigns.com/iboc/station-list.html

Looking at the McLarnon list, and taking AM HD adjacent channel "saddlebags" into account, if just the small number of HD stations listed start broadcasting with HD at night, virtually every AM frequency will be involved. Imagine what would happen if HD AM actually becomes popular!

HD radio, sowing the seeds of it's own destruction.