Wow -- I am amazed at how much cleaner WXYT 1270's daytime signal sounds with IBOC off.

Even though it sounds like they are using less than full 10 kHz bandwidth (my guess would be 7 kHz to 8 kHz), the audio sounds very clean. Reception is now every bit as good as 910 WFDF.

I am not sure if 1310 WDTW was using IBOC previously, but suddenly their audio chain has improved, too! For the past few days, it sounds like they have been using a full 10 kHz bandwidth. Audio chain sounds nearly as good as WJR's!

_________________
Dave & Chuck are two no-talent hacks.

If only our posts didn't remind them to try to get it back on the air. It's really amazing how a small handful of stations can wreak so much havoc with the AM band.

_________________
"I'm meteorologist Arthur Mometer."

"Those of you who think you know everything are very annoying to those of us who do."

"Lies have to be repeated and repeated to be believed. Truth stands on its own merit."

The reason why their analog sounds like 7 or 8K is that you are supposed to "brick wall" the non IBOC audio to 5K.

Haha... and it STILL sounds better than the HD audio! That's just funny.

_________________
"And the one in the reeeear.... burned his driver's license!" - Johnny Cash

Man... I don't know about that Ed.

I was listening to Doc the other day and in HD and it sounded pretty good.

Its just not worth all of the havoc it reeks on the AM Band.

1270 and 1310 have both sounded sweet this week with their analog audio!

I'm going to enjoy this while it lasts. 1310's daytime signal in my location sounds unbelievably good on my clock radio with full 10 kHz bandwidth.

Not bad for an aged 5 kW facility located 20 miles away in the middle of the concrete jungle, especially with the hiss-o-matic WEXL located much closer to me & only 3 clicks up the dial.

_________________
Dave & Chuck are two no-talent hacks.

the Worst IBOC EVER on any radio station Is 1380 WGLM From Greenville, i used to live only 10 Miles from there Transmitter, and i got horrible IBOC.

WGLM has never had IBOC. BTW it was formerly WSCG, for "Stafford Communication Group" ( a very un-noticed station) and they never had it, either. Before that, people DO remember it as WPLB, before the era of IBOC existed.

If you had interference you think is IBOC, YOU had other issues, or don't remember your frequencies. Any interference that you believe may have been caused BY 1380 at that distance would have been nearly impossible, given the relatively low power of the station and the distance you stated.

BTW--while not required, spelling and some knowledge of proper writing/sentence structure would help you to be more believable, too when posting.

I inadvertently left my clock radio tuned to 1310 WDTW, and lo and behold, I woke up to Phil Hendrie this morning!

That was a pleasant surprise. Had no idea that Phil's show -- syndicated by right-leaning TRN -- aired locally on 1310. (Years ago, his old show syndicated by Premiere aired on the now-defunct 1310 The X.)

_________________
Dave & Chuck are two no-talent hacks.

The difference in sound quality between IBOC and non-IBOC stations (5khz vs 10khz) on my Delco AM stereo is nothing short of amazing. One of the best sounding stations I listen to at night is WMVP ESPN 1000. I swear it sounds like it is broadcasting a bandwidth even higher than 10khz.

btw - I could swear I remember reading somewhere that the legal limit is actually 10,200 khz on AM, and then a steep roll-off after that. So is there possibly some audio above 10,200 khz on some stations?

A good engineer can make analog NRSC sound very crisp and clean within the mask. However... I've heard that there are some engineers who figure if IBOC can chew up 60kHz of spectrum per transmitter, then they can disable their NRSC filters and transmit wideband out to 15kHz. I don't know if WMVP is one of them (aren't they IBOC too?) but I've definitely ran across a few stations while DXing at night on my C-QuAM radios that no doubt have their NRSC filters disabled. Too bad they are mono because they'd rival FM's in stereo. I still find a decent handful of AM stereo stations at night, especially during "critical hours" when some of the daytimers come in.

Also, in an ironic twist, there are quite a few AM stations who are just now going to stereo or turning it back on. Funny, after all this time, there seems to be more listener interest in C-QuAM than AM HD, and it's not just from DXers and radio people, either. There's evidently a lot more C-QuAM capable radios out there than we think.

_________________
"And the one in the reeeear.... burned his driver's license!" - Johnny Cash

Ed, engineers are turning off their NRSC filters? You have to be joking.
Do they turn them on just for the annual Spectrum Analysis?
It does make sense. The FCC is allowing any station that bows to the alter of IBOC to interfere beyond the second adjacent. So, whats
the point of keeping the analog mask in place?

We've had great success with AMS and even mono stations sounding good.

We had a CCM station in Cleveland that was incredible in stereo.

WMVP most definitely does NOT transmit IBOC HD audio. There has been no IBOC used on that frequency in years, if ever.

_________________
Dave & Chuck are two no-talent hacks.

The codec sounds like it's going through loose glass, music tends to mask that a bit better thought.

_________________
Both Democrats and Republicans are "liberals"! The Republican ideology is classical liberalism, while the Democrats is welfare liberalism.

WMVP is not exceeding 10khz, but they do push their audio right up to that limit.

Brief mp3 sample