A Very Sound Question

[dfaulkner]

Why does the little 5kw night pattern of 1190 have noticably fuller fidelity than the big 50kw day pattern ? If I hear the morning switch, there will be 10 to 15 seconds of both transmitters banging into each other & then all the bass is gone. In the evening, it's the reverse. It's been this way for months.

 

[charles123]

Why does the little 5kw night pattern of 1190 have noticably fuller fidelity than the big 50kw day pattern ? If I hear the morning switch, there will be 10 to 15 seconds of both transmitters banging into each other & then all the bass is gone. In the evening, it's the reverse. It's been this way for months.

Why is the sky blue?

 

[dfaulkner]

Why does the little 5kw night pattern of 1190 have noticably fuller fidelity than the big 50kw day pattern ? If I hear the morning switch, there will be 10 to 15 seconds of both transmitters banging into each other & then all the bass is gone. In the evening, it's the reverse. It's been this way for months.

Why is the sky blue?

It's something to do with the gases in earth's atmosphere that cause it to appear blue. In outer space the sky is black. ;D

 

[secondchoice]

I am not an employee of CC, so this is just a guess.

1190 has two transmitter sites.

http://www.radio-locator.com/info/KFXR-AM

There are two STL’s and audio chains. If they are running HD during the daytime, the bass or lower freq.’s should be set lower. IIRC IBOC can not peak over 100% on AM. Some AM’s who are HD, usually turn off the IBOC at night as to not interfere with adjacent channel stations. If so that is why the night time set up sounds better.

 

[Lancer]

2 different sites, 2 different transmitters. A little EQ tweak would fix it.

On the final night when KAAY Little Rock switched from rock to gospel in 1985, they fired up the old RCA transmitter & you could immediately tell the difference in EQ during the last "Beaker Street" broadcast. Their newer transmitter had a thinner sound so they fired up the old one for the last show.

 

[LibertyNT]

since 1190 does not run in HD
I would assume the EQ settings for whatever reason are set different.

 

[radioaircheck]

1190 is still on the air?

 

[metroneck]

Something is different, sometimes Pugs voice sounds good on it. That's scary.

 

[Jay Walker]

Depends on the STL/T-1/Telco line to both the Rockwall and Hunter-Ferrel site.
Plus separate audio processing is located at each site instead of the studio. So the difference in processor settings at each site could be a factor.

If I recall correctly when I had dealings with the frequency there were 8k telco lines to both.
However that was years ago. We couldn't get a clean shot on RF because of the berm the county built around the landfill to the east of the daytime site.

The Rockwall site would be a pretty long hop for an RF STL from the tollway, Irving would be reasonable from the tollway depending on what building blocks the shot. It's funny, you'd think with 12 towers the night-time site would have more bandwidth issues.

Last I knew they were using a DX-50 Harris day and a solid state 5k Harris at night.

Great old site with a lot of history, and too many snakes. I wonder if that copperhead snake skin is still in the rack at Hunter-Ferrel LOL. ;D

 

[Tom Wells]

Why does the little 5kw night pattern of 1190 have noticably fuller fidelity than the big 50kw day pattern ? If I hear the morning switch, there will be 10 to 15 seconds of both transmitters banging into each other & then all the bass is gone. In the evening, it's the reverse. It's been this way for months.

Why is the sky blue?

It's something to do with the gases in earth's atmosphere that cause it to appear blue. In outer space the sky is black. ;D

Air IS blue, if your're looking through a certain thickness of it.
Which is also why the sunset sky and sun goes red. You're looking through MORE air.
The other colors refract "out".


IBOC in AM requires that modulation not exceed 94% negative, lest the carrier pinch off, at which point there'd BE no reference for the
mulitple digital sidebands to reference. Even in a totally digital mode, a vestigal carrier would of necessity remain.

So to make sure that never happens, the audio must be cut back. Cutting back on the bass also helps to ensure this, as bass frequenceis
hog up a lot of power. Another aspect is high level audio modulated AM where the audio power actually ADDS TO the total output, vs
modern pulse width modulation transmitters, much more "efficient" but will never ever sound gigantic like the old plate modulated behemoths.

You're not supposed to be able to tell the difference. You think it sounds cheap? Well, it is. That's the whole point.

Then if this station runs iboc, the digital sidebands all "subtract" actual audio information from the signal.
This is not possible to correct, as the "information" is all in one basket.

Again, you're not supposed to be able to hear this.
But far wiser people at ibiquity insist that your listening experience be diminished in order to apply iboc.

 

[LibertyNT]

1190 Does not Run HD.

 

[dfaulkner]

Thanks for all the answers. I just stopped listening to it yesterday. My cell phone has fuller fidelity. I think it's something particular to 1190 rather than AM in general, KAAM has 10 times the low end. On my car radio the low end of KAAM can over drive (I think that's the right word for: "more bass than the speakers can handle.") the speakers. And I hear an oustanding selection of country music on KSCS. They sound Great !

 

[dakareedog]

I spoke to the engineer several years ago about this. he attributed the fuller bass on the night Xmtr to better wound coils.