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True I-A clear(ed) channel stations

H

houstonradiogeek

When I do searches for the original clear channel statons, and I get lists that also include stations that are 50Kw, or I-B class, directional multitower arrays, etc.

What I'm seeking, for curiosity purposes only, is the list of the TRUE I-A stations that "owned" their frequency and pumped it full of 50,000 watts of juice 24/7 from a single tower.<P ID="signature">______________
I listen to what I like.
Ratings be Damned.</P>
 
I know that WKBW is 1A and KOMA is 1B

WHAS is 1A, a station in Las Vegas is 1B

WOR is 1A and WAQI is 1B

I can not think of others.

> When I do searches for the original clear channel statons,
> and I get lists that also include stations that are 50Kw, or
> I-B class, directional multitower arrays, etc.
>
> What I'm seeking, for curiosity purposes only, is the list
> of the TRUE I-A stations that "owned" their frequency and
> pumped it full of 50,000 watts of juice 24/7 from a single
> tower.
>
<P ID="signature">______________
[email protected]</P>
 
> I know that WKBW is 1A and KOMA is 1B
>
> WHAS is 1A, a station in Las Vegas is 1B
>
> WOR is 1A and WAQI is 1B
>
> I can not think of others.

One out of three right.

WKBW and KOMA were both I-B, as were WOR and WAQI. WHAS was indeed I-A, while KXNT in Las Vegas was II-A.

The 25 US I-As were:

KFI 640
WSM 650
WNBC 660
WMAQ 670
KNBR 680
WLW 700
WGN 720
WSB 750
WJR 760
WABC 770
WBBM 780
WBAP/WFAA 820
WCCO 830
WHAS 840
WWL 870*
WCBS 880
WLS 890
KDKA 1020
WBZ 1030*
WHO 1040
WTAM 1100
KMOX 1120
KSL 1160
WHAM 1180
WOAI 1200

The two asterisked I-As, WWL and WBZ, were the only ones with directional antennas, and both for the same reason - to avoid wasting huge amounts of power over the ocean. Either one could (and still can) operate ND if they wanted to. 1100 in Cleveland operated with a DA for a while as well, but returned to ND operation.

The distinction between I-A and I-B operation was eliminated in the eighties when the class system was revised to the present A, B, C, D. Former I-As and I-Bs are now all class A facilities.

(The I-Bs, unlike the I-As, were allocated two to a channel beginning in the thirties and forties, usually operating DA-1 or DA-N to provide mutual protection. A handful of I-Bs - WGY and KNX - were able to operate ND-U because they were so far from their co-channel signals.)

The further breakdown of the clears, in the sixties and seventies, created the II-A operations on the former I-A clear channels, yielding stations like 720 Las Vegas, 880 Lexington NE, 660 Window Rock AZ and so on. Those II-A stations became class B facilities in the eighties.

s

<P ID="signature">______________
Tower Site Calendar 2005 NOW AVAILABLE! - <a target="_blank" href=http://www.fybush.com/nerw.html#calendar>www.fybush.com</a></P>
 
> > I know that WKBW is 1A and KOMA is 1B
> >
> > WHAS is 1A, a station in Las Vegas is 1B
> >
> > WOR is 1A and WAQI is 1B
> >
> > I can not think of others.
>
> One out of three right.
>
> WKBW and KOMA were both I-B, as were WOR and WAQI. WHAS was
> indeed I-A, while KXNT in Las Vegas was II-A.
>
> The 25 US I-As were:
>
> KFI 640
> WSM 650
> WNBC 660
> WMAQ 670
> KNBR 680
> WLW 700
> WGN 720
> WSB 750
> WJR 760
> WABC 770
> WBBM 780
> WBAP/WFAA 820
> WCCO 830
> WHAS 840
> WWL 870*
> WCBS 880
> WLS 890
> KDKA 1020
> WBZ 1030*
> WHO 1040
> WTAM 1100
> KMOX 1120
> KSL 1160
> WHAM 1180
> WOAI 1200
>
> The two asterisked I-As, WWL and WBZ, were the only ones
> with directional antennas, and both for the same reason - to
> avoid wasting huge amounts of power over the ocean. Either
> one could (and still can) operate ND if they wanted to. 1100
> in Cleveland operated with a DA for a while as well, but
> returned to ND operation.
>
> The distinction between I-A and I-B operation was eliminated
> in the eighties when the class system was revised to the
> present A, B, C, D. Former I-As and I-Bs are now all class A
> facilities.
>
> (The I-Bs, unlike the I-As, were allocated two to a channel
> beginning in the thirties and forties, usually operating
> DA-1 or DA-N to provide mutual protection. A handful of I-Bs
> - WGY and KNX - were able to operate ND-U because they were
> so far from their co-channel signals.)
>
> The further breakdown of the clears, in the sixties and
> seventies, created the II-A operations on the former I-A
> clear channels, yielding stations like 720 Las Vegas, 880
> Lexington NE, 660 Window Rock AZ and so on. Those II-A
> stations became class B facilities in the eighties.

Once again, Scott Fybush to the rescue! Thanks Scott!<P ID="signature">______________

Co/Moderator: New York,Miami,Airchecks,Classic Radio and Where Are They Now?</P>
 
You know a lot more than I do about that. What about KYW 1060 Phila.? I thought they were 1A.

> > I know that WKBW is 1A and KOMA is 1B
> >
> > WHAS is 1A, a station in Las Vegas is 1B
> >
> > WOR is 1A and WAQI is 1B
> >
> > I can not think of others.
>
> One out of three right.
>
> WKBW and KOMA were both I-B, as were WOR and WAQI. WHAS was
> indeed I-A, while KXNT in Las Vegas was II-A.
>
> The 25 US I-As were:
>
> KFI 640
> WSM 650
> WNBC 660
> WMAQ 670
> KNBR 680
> WLW 700
> WGN 720
> WSB 750
> WJR 760
> WABC 770
> WBBM 780
> WBAP/WFAA 820
> WCCO 830
> WHAS 840
> WWL 870*
> WCBS 880
> WLS 890
> KDKA 1020
> WBZ 1030*
> WHO 1040
> WTAM 1100
> KMOX 1120
> KSL 1160
> WHAM 1180
> WOAI 1200
>
> The two asterisked I-As, WWL and WBZ, were the only ones
> with directional antennas, and both for the same reason - to
> avoid wasting huge amounts of power over the ocean. Either
> one could (and still can) operate ND if they wanted to. 1100
> in Cleveland operated with a DA for a while as well, but
> returned to ND operation.
>
> The distinction between I-A and I-B operation was eliminated
> in the eighties when the class system was revised to the
> present A, B, C, D. Former I-As and I-Bs are now all class A
> facilities.
>
> (The I-Bs, unlike the I-As, were allocated two to a channel
> beginning in the thirties and forties, usually operating
> DA-1 or DA-N to provide mutual protection. A handful of I-Bs
> - WGY and KNX - were able to operate ND-U because they were
> so far from their co-channel signals.)
>
> The further breakdown of the clears, in the sixties and
> seventies, created the II-A operations on the former I-A
> clear channels, yielding stations like 720 Las Vegas, 880
> Lexington NE, 660 Window Rock AZ and so on. Those II-A
> stations became class B facilities in the eighties.
>
> s
>
<P ID="signature">______________
[email protected]</P>
 
Thanks again Mr. Fybush :)

> The distinction between I-A and I-B operation was eliminated
> in the eighties when the class system was revised to the
> present A, B, C, D. Former I-As and I-Bs are now all class A
> facilities.

> (The I-Bs, unlike the I-As, were allocated two to a channel
> beginning in the thirties and forties, usually operating
> DA-1 or DA-N to provide mutual protection. A handful of I-Bs
> - WGY and KNX - were able to operate ND-U because they were
> so far from their co-channel signals.)

WGY's co-channel "partner" is KGO-San Francisco, but KNX's? WAPI-Birmingham?


>
> The further breakdown of the clears, in the sixties and
> seventies, created the II-A operations on the former I-A
> clear channels, yielding stations like 720 Las Vegas, 880
> Lexington NE, 660 Window Rock AZ and so on. Those II-A
> stations became class B facilities in the eighties.

KTRH in Houston is a Class B station, broadcasting on 740 KHz (a Canadian clear channel), so I assume it's old class was either I-B or II-A.<P ID="signature">______________
I listen to what I like.
Ratings be Damned.</P>
 
> You know a lot more than I do about that. What about KYW
> 1060 Phila.? I thought they were 1A.

No, sir. As anyone in Bucks County can tell you, KYW goes to a two-tower directional array at night to protect WEPN 1050 in New York. It was a I-B.

To answer the other questions in this thread, KNX was a I-B as well, and for a time even used a directional antenna. 1070 is a Canadian clear channel, and the former I-A was CBA Moncton NB. That's far enough from KNX that KNX can still be ND-U.

I believe KTRH was I-B.

s<P ID="signature">______________
Tower Site Calendar 2005 NOW AVAILABLE! - <a target="_blank" href=http://www.fybush.com/nerw.html#calendar>www.fybush.com</a></P>
 
Re: True I-A clear(ed) channel stations - correcting my own list!

> KNBR 680

KNBR was/is ND, but it's I-B. And I omitted WCAU (WPHT) 1210, which was I-A.

The FCC list also shows WCFL (WMVP) 1000 as having been I-A, which is incorrect. It's DA-N, mutually protecting KOMO Seattle, and was I-B.

s<P ID="signature">______________
Tower Site Calendar 2005 NOW AVAILABLE! - <a target="_blank" href=http://www.fybush.com/nerw.html#calendar>www.fybush.com</a></P>
 
Isn't WABC actually a 1-B? I seem to recall reading somewhere that many years ago, they were supposed to have gone directional away from KOB. They never did, and are considered a 1-A, "sorta, kinda, like"?

Also, with 25 US class 1-A clears, how come only 12 of them were ever considered candidates to go 500KW?<P ID="signature">______________
_____________________________________________
Proud 2 B a pioneering satellite radio subs¢riber
Ai4i is always on the trailing edge of technology</P>
 
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