This is the US Station History section of
The Broadcast Archive

Maintained by:
Barry Mishkind - The Eclectic Engineer
Assisted by: Peter Haas and Donald Wilson
Last Update 6/17/07

CLEAR CHANNEL STATIONS

The original purpose of clear channel stations in the US (as opposed to the company of the same name) was to provide coverage, especially at night, to the "white areas" of the US, where there were no stations at all. Clear Channel stations were known as Class I stations.

Originally, the signals were protected as far as they reached. The original breakdown of the I-A channels reduced that to 1000 miles, later reduced to 900 and then 850 miles. Some co-channel I-Bs (1170 and 1500, for example) are as close as 850 miles.

HISTORIC DESIGNATIONS

Class I-A refers to the dominant station on a frequency. They are always 50 kW and nominally non-directional - although several of the stations directionalized on purpose in order to use power that might go into the oceans, redirecting it over land. 

Class I-B stations were required to protect other occupants of the channel and normally used directional antennae to accomplish this task. 

Class I-N stations were based in Alaska or Hawaii, and operated with 10 kW or more, non-directionally.

There were also some Class II stations on some of the channels, but they were completely limited by the Class 1 stations' contours, and often were daytime only. Additionally, there are several channels that were assigned as clear channels to Mexico, Canada, and the Bahamas.

CURRENT DESIGNATIONS

Following an international agreement in the mid-1980's, the FCC redefined the classes of stations as:

  • Class A: Former Class I-A, Class I-B, and Class I-N, (Clear channel stations with protected skywave coverage areas.) [1-N was defined as Alaska stations with 10 kW or greater fulltime.]
  • Class B: Former Class II-A, Class II-B, Class III-A, and III-B. (Stations with equivalent night time powers of 250 Watts or greater, except class A or C) 
  • Class C: Former Class IV (Local "Graveyard" Channel) stations.
  • Class D: Former Class II-D, and Class III-B daytime only stations. (Stations with less than 250 Watts power at night, and which receive no nighttime service area protection.)

Peter Haas notes: My list, as confirmed from examining the NARBA treaty documents, of U.S. Class I-A Clears are: 640, 650, 660, 670, 700, 720, 750, 760, 770, 780, 820, 830, 840, 870, 880, 890, 1020, 1030, 1040, 1100, 1120, 1160, 1180, 1200 and 1210, since 1941. I call these "Class I-A Clears in-fact." There are 25 in number.

Additional United States Class I-A clears, which I call "de-facto Class I-A Clears," as these were once clear, but were broken down by a variety of means, including State Department actions, actions by the owners, actions by the FCC prompted by political pressure from highly-placed parties, etcetera. De-facto Class I-A Clears once included at least: 680, 710, 810, 850, 1000, 1050, 1170, 1190, and possibly others. (All of these are within or immediately adjacent to a group of Class I-A Clears in-fact, which were assigned solely to the United States until new Canadian and Mexican Class I-A Clears were forced into the broadcast band at 740, 800, 860, 900, 990, 1010, 1050, 1220 and various other frequencies, thereby displacing other stations by +10, +20, +30, +40, or -10 kHz.)

Those clears which are presently on 1500 through 1530 (formerly on 1460 through 1490) were not de-facto Class I-A Clears as these were not Clears at all, but were so-called "high-powered Regionals." On account of their very high frequencies these stations were allowed the 10 kW power which was otherwise reserved for a Clear, whereas conventionally-powered Regionals were otherwise limited to 5 kW.

Subsequent to 1941, these "high-powered Regionals" were converted to Class I-B Clears, and additional Clears and Regionals were added above 1530, with 1540 becoming a Class I-A Clear (Bahamas), 1550 becoming a Class I-B Clear (Canada and Mexico), 1560 becoming a Class I-A Clear (Cuba, but this was abrogated after Castro's rise, and was taken by the United States as Class I-B Clears), 1570 becoming a Class I-A Clear (Mexico), and 1580 becoming a Class I-A Clear (Canada), while 1590 and 1600 became conventionally-powered Regionals.

FLAMETHROWER STATIONS

Here is a look at what most people would consider the "Flamethrower" stations of the US. Peter Haas shares a number of his observations on the assignments and how they came to be the way they are today.

Afterward is another listing of additional 50 kW stations in North America, many of which were squeezed onto the band with as many as 12 towers and extremely narrow beamwidths.  
640
KFI, Los Angeles - I-A KFI, built by Earl C. Anthony, was a pioneer station in LA.
KFI tour         KFI history
Remembering KFI
650
WSM, Nashville, TN - I-A Home of the Grand Ole' Opry, and proud owner of a distinctive Blaw-Knox diamond shaped antenna.
WSM Tour     WSM history 
660
WFAN, New York - I-A Originally WEAF, and later WNBC, this station started as the AT&T station in New York.
WFAN Tour     WFAN history
WEAF/WNBC/WRCA/WNBC history
670
WSCR, Chicago - I-A Went on the air in March 1922 as WGU, but changed to WMAQ to avoid confusion with WBU, Chicago.
WSCR Tour      WSCR/WMAQ history
680
KNBR, San Francisco - I-A KNBR operates a Franklin style antenna, designed to reduce fading.
KNBR Tour         KNBR history
WPFT, Raleigh, NC WPTF Tour        WPTF history
690 Canadian Class I-A clear.
WOKV, Jacksonville, FL One of the Brennan home-brew 50 kW transmitters made this a smoking signal.
WAPE Tour         WAPE history
XETRA, Tijuana, BC - I-B 77 kw daytime, 50 kW-N
XETRA Tour          XETRA history
700
WLW, Cincinnati, OH - I-A WLW was a true US "Flamethrower," operating at 500 kW (the highest power for any US AM radio station) from 1934-1939.
WLW history page    WLW Picture Tour
710 Although shared, there are no foreign Class A's on 710 (hence it isn't "shared" in the conventional meaning of that term).
WOR, New York - I-B WOR is directional simply because WOR originally utilized a "long wire," which inherently has a Figure-8 pattern.

A Canadian de-facto Class II-B was assigned, thereby breaking down 710 into a de-facto Class I-B channel from a de-facto Class I-A channel. The Canadian is/was CKVM. After WOR moved to a directional antenna, it was required  to protect CKVM, and, hence, WOR has little, if any, secondary service north of the U.S.-Canadian border, around Lake Ontario. This is the protection afforded to CKVM. Before, WOR was a de-facto Class I-A.
WOR Pictures
KSPN, Los Angeles - II-B Originally KRLO, then KEJK, KMPC, KDIS and KTZN. 

Went on-air before WW-II with only 5 kW as a de-facto Class II-B, but increased to 50 kW/10 kW DA-N post-war.

KMPC sought I-B status after WWII, but was unable to show it would receive adequate protection.
KIRO Seattle, WA - I-B Protects KMPC
WAQI, Miami, FL II-B Originally WFTL, then WGBS, 
720
WGN, Chicago - I-A The Tribune station went on the air as WEBH or WDAP, depending upon whose history you read.
730 This is a Mexican Clear
740 CHWO, Toronto - 50 kW This is a Canadian Clear Channel
KCBS, San Francisco - I-B
750
WSB, Atlanta, GA - I-A The first broadcast station licensed in the SE.
760
WJR, Detroit, MI - I-A
WJR Tour
770 This is an interesting channel. Long legal wars were fought over the allocation.
WABC, New York - 1-A Originally WJZ (Newark, NJ). 

WABC never installed the DA which the FCC requested in order to protect KOB's STA operation on 770, therefore it never gave up its dominant position on 770.
KKOB, Albuquerque, NM - II-A Was on 1180 as a daytimer/shared-timer, with KEX, later moved to 1030/770 (at various times; 1030 was eventually determined to be "technically infeasible").

KOB challenged WABC at the Commission level and in Federal court, but lost at the SCOTUS. Finally reallocated as a Class II-A, it is the only Class II-A not on the original Class II-A List. 

The decision was very important, as by the time this issue was settled, KSWS was already on-air as a Class II-A, and the Commission/SCOTUS could, rightfully so, say that New Mexico already had a Class I-type station (Class II-As are really de-facto Class I-Ns, except that they are in the 48 states, not in the "non-contiguous states," which is what the Class I-N designation means) and, therefore, there was no need for KOB to be a Class I. Game over! 

Consequently, WABC retained its Class I-A designation.

Today, KKOB uses a 230 Watt synchronous transmitter in Santa Fe, NM
KTTH, Seattle, WA - II-B Originally, as KXA, it was a limited time station, although it sought Class I-B status. However, the courts would not give in to KXA. Now 50 kW/5 kW, DA-2
780
WBBM, Chicago - I-A
800 Mexican clear channel.
XEROQ, Ciudad Juarez, Chihuauah, Mexico Previously XELO, it was 150 kW at one time.
CKLW, Windsor, Ontario (Detroit).
810
WGY, Schenectady, NY - I-B WGY was a de-facto Class I-A, which is why it is 50 kW ND-U. Broken down to a de-facto Class I-B by the addition of San Francisco's 810, first, and, later, by KCMO and a few others.
KCMO, Kansas City, MO - II-B Always a Class II-B. Formerly 10 kW nights, now 5 kW nights. Strange.
KGO, San Francisco - I-B KGO was co-owned with WGY, so General Electric simply elected to break down WGY, thereby freeing KGO to move from 960 to 810, thereby boosting its class from a de-facto Class III-A to a de-facto Class I-B.

KGO TOUR
820
WBAP, Dallas - I-A Home of the famous share time with WFAA, 820 booms out of the Dallas/Ft. Worth area.

At one time, 820 was a tenant on WFAA/570's towers (the middle one?). The tenancy arrangement was very expensive, so Belo obtained its own site.
830
WCCO, Minneapolis, MN - I-A The big one in the Midwest.

Formerly CBS O&O under the "seven station rule." Again owned by CBS.
WCCO History      WCCO Tour
840
WHAS, Louisville, KY - I-A
WHAS Tour
850
KOA Denver, CO - I-B KOA was a de-facto Class I-A, which is why it is 50 kW ND-U. Broken down to a de-facto Class I-B by the addition of Boston's 850, first, and, later, by many others.
WHDH Boston, MA - II-B
860 Canadian Class I-A
870
WWL New Orleans, LA - I-A
880
WCBS New York - I-A Originally WAGH, then WBOQ, WABC, then WCBS.
900 Mexican Class I-A
940 Canadian/Mexican clear
990 Canadian Class I-A clear.
1000 This channel is shared with Mexico, with the Mexican "grandfathered" at 10 kW ND
WMVP Chicago, IL - I-B This station used to be WCFL, a station owned by a labor union. 

WMVP Tour
KOMO Seattle, WA - I-B
1010 Canadian Class I-A clear
1020
KDKA Pittsburgh, PA - I-A Among the very first broadcast stations in the US.
KINF Roswell, NM - II-A  The first II-A to be built - then KSWS. This is the station that began the breakdown of the Clear Channels. The array seems very weird for a Class II-A, but it was necessary in order to achieve zero kW towards KDKA, while maintaining *at least 10 kW* towards every other bearing within the Southwest.

The very existence of KSWS, and its Class II-A signal, which is considered by the FCC, and by the SCOTUS, to be a "station of the Class I type", was the central reason why KOB's law suit vs. WABC was dismissed, with an order that it abandon its de-facto Class I-B operation, and that it refile as a Class II-A ... the only Class II-A station not originally on the Class II-A List. 

KTNQ Los Angeles, CA - II-B A late entry ... originally a daytimer limited by KDKA

KGBS (predecessor of KTNQ) was 50 kw DA-1 L-KDKA, and it always operated with its licensed day (DA-1) facilities from midnight to 5 am Sunday, Pittsburgh time, which was 9 pm to 2 am Sunday/Monday, L.A. time.

KGBS, became a Class II-B in the seventies, after KSWS, the first Class II-A to be licensed, had been operating 50 kW-D, 10 kW-N, DA-2, for about ten years. KSWS' new 50 kW night DA, paid for by Storer, was especially designed so that it sent no more than 10 kW towards KGBS/KTNQ, nights.

Incredibly, Storer was also considering selling the 50 DA-1 L-KDKA station to a religious broadcaster for low $$$, but that prospective buyer tried to get a lower price by bad-mouthing Storer publicly, so Storer pulled out and decided, instead, to take the extra time it took to do the 50/50 DA-2 upgrade, which also included KSWS.
1030
WBZ Boston, MA - I-A
1040
WHO Des Moines, IA - I-A
WHO Tour
1050
XEG Monterrey, Mexico - I-A
1060 Shared with Mexico
KYW Philadelphia, PA 1-B
1070 Shared with Canada.
KNX Los Angeles, CA - I-B KNX was a de-facto Class I-A, on 1050, which is why it is 50 kW ND-U. It was broken down to a Class I-B when it was moved from 1050 to 1070.

The Canadian is, of course, a Class I-B, and is also 50 kW ND-U. Perhaps the only dual 50 kW ND-U allocations.
Steve Blodgett's KNX Site
1080
WTIC Hartford, CT - I-B
KRLD Dallas - I-B KRLD Tour
KWJJ Portland, OR - II-B
1090 Shared with Mexico
WBAL Baltmore, MD - I-B
KTHS Little Rock, AR - I-B Originally at Hot Springs, AR as a II-B, Perhaps the last 1-B added in the US.
KPTK Seattle, WA - II-B
XEPRS, Rosarito, BC- I-N
1100
WTAM, Cleveland, OH - I-A  

 
KJBS, San Francisco The granddaddy of weird allocations. For a time was 50 kW daytime, 1 kW (from a different site across the bay in San Francisco itself) from sunset until 9 PM PT, then back to 50 kW from 9 PM PT (midnight at WTAM) until sunrise.
1110
WBT Charlotte, NC - I-B WBT was a de-facto Class I-A. Purchased by CBS. Broken down to a de-facto Class I-B by the addition of KFAB, which had been a share-timer on 780. Sold by CBS before the DA was installed. Operated 50/10 kW ND-U until the DA was installed after the war.
KFAB Omaha, NE - I-B Was a share-timer, on 780. Moved to 1110 in order for CBS' WBBM to become a Class I-A.
(KRLA) Pasadena, CA - II-B Ok, so it is now KDIS ... and just a faded memory of the legacy of KRLA. 
KRLA Tour       KRLA History 
1120
KMOX St. Louis, MO 1-A KMOX Tour      KMOX History
1130 U.S.-Canadian clear
KWKH Shreveport, LA I-B
WBBR New York, NY I-B
CKWX Vancouver, BC I-B This is the only Canadian Class I station not formerly owned by CBC in modern times (CJBC was privately owned, in pre-war times, however).
1140 Shared with Mexico
WRVA Richmond, VA 1-B
1160
KSL Salt Lake City, UT 1-A
1170
WWVA Wheeling, WV 1-B
KVOO Tulsa, OK 1-B
1180
WHAM Rochester, NY 1-A
1190
WOWO Ft. Wayne, IN - I-B Originally a powerhouse on the 1190 channel, WOWO was purchased by ICB, owner of WLIB. Power reduced to 9.8 kW, nights, which effectively broke this station down to a Class II-B. Was a de-facto Class I-A until co-owned KEX was moved from 1180 to 1190.
WOWO Tour
WLIB New York, NY - II-B Formerly a daytimer, became a fulltimer with the breaking down of WOWO.
KEX Portland, OR - I-B Was a share-timer, with KOB, on 1180. Became a de-facto Class I-B when Westinhouse's WOWO was broken down to a Class I-B
1200
WOAI San Antonio, TX - I-A
1210
WCAU Philadelphia, PA - I-A
1220 Mexican Class I-A clear
1500
WTOP Washington, DC 1-B
KSTP Minneapolis, MN 1-B
1510
Boston Was WMEX.
WLAC Nashville, TN 1-B
KGA Spokane, WA 1-B
1520
WWKB Buffalo, NY 1-B Originally WKBW
KOMA Oklahoma City, OK 1-B
1530
WSAI Cincinnati, OH I-B Still licensed to use ND-D from LSR Cincinnati to LSS Sacramento.

This was the payback for allowing KFBK to move from a Class IV to a Class I-B, whereas before WKCY had 1530 all to itself.
KFBK Sacramento, CA I-B Boasts a very Efficient Franklin Antenna
KFBK Tour
1540 Shared with ZNS-1, Bahamas
KXEL Waterloo, IA I-B
1550 Shared Canadian/Mexican. The Canadian is 10 kW DA-1. The Mexican is grandfathered at 10 kW, believed to be operating 100 kW/10 kW ND
1560
WQXR New York, NY I-B
KNZR Bakersfield, CA I-B Grandfathered at 10 kW N. Presently operating 25 kW-D, 10 kW-N, DA-N.
1570 Mexican Class I-A
1580 Canadian Class I-A

ADDITIONAL STATIONS

Donald Wilson shares these additional stations which run 50 kW signals or, in the case of international stations, notified power levels. Some others share the Clear Channel with at least 10 kW.

Each station's current class is shown as [A] or [B] after their previous class, for some stations an earlier class is shown in note text. 

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 540 - Canadian and Mexican Clear Channel

CBK        Waltrous, SK               I-A     [A]     50 kW ND

CBT        Grand Falls, NF           I-B     [A]     10 kW ND

XEWA     San Luis Potosi, SL     I-A     [A]     150 kW ND

WFLF      Pine Hills, FL                II-B  [B]     50 kW DA-2
    (Former calls: WQTM, WRTM, WWZN, WGTO) 

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 580 - Regional Channel 

CJFX        Antigonish, NS           III-A   [A]     10 kW DA-1 
        CP NEW DA AT NEW SITE 25 kW DA-1

KMJ         Fresno, CA                 III-A   [B]     50 kW DA-1

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640 - US Clear

KFI     Los Angeles, CA            I-A     [A]     50 kW ND 

KYUK Bethel, AK                     I-N     [A]     10 kW ND

CBN Saint John'S, NF               I-B     [A]     10 kW ND 


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650 - US Clear


WSM     Nashville, TN              I-A     [A]     50 kW ND 

KENI     Anchorage, AK            I-N     [A]     50 kW ND
    (Former call: KYAK) 

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660 - US Clear

WFAN     New York, NY           I-A     [A]     50 kW ND
    (Former calls: WNBC, WRCA, WEAF)

KFAR     Fairbanks, AK             I-N     [A]     10 kW ND

KTNN     Window Rock, AZ     II-A     [B]     50 kW DA-N


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670 - US Clear


WSCR     Chicago, IL                 I-A     [A]     50 kW ND
    (Former call: WMAQ)

KDLG     Dillinghan, AK             I-N     [A]     10 kW ND

CKXB     Musgravetown, NF     II-B     [A]     10 kW DA-2
    (Former call: CHYQ) 

KBOI     Boise, ID                     II-A     [B]     50 kW DA-N


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680 - US Clear

KNBR     San Francisco, CA      I-A     [A]     50 kW ND

KBRW     Barrow, AK                I-N     [A]     10 kW ND

WRKO     Boston, MA               II-B    [B]     50 kW DA-2
    (Former calls: WNAC, WLAW)

WCBM    Baltimore, MD            II-B     [B]     50 kW/20 kW DA-2

WPTF     Raleigh, NC                II-B     [B]     50 kW DA-N

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690 - Canadian Clear

CINF     Montreal, QC                 I-A     [A]     50 kW DA-1
    (Replacement stations for: CBF) Formerly 50 kW ND

XETRA Tijuana, BN                    I-B     [A]     77 kW/50 kW DA-2

WOKV  Jacksonville, FL             II-B     [B]     50 kW/10 kW DA-N
    Two site operation CP: 50 kW/25 kW DA-N
    (Former calls: WPDQ, WJKF, WAPE)

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700 - US Clear

WLW     Cincinnati, OH             I-A     [A]     50 kW ND

KBYR    Anchorage, AK             I-N    [A]     10 kW ND

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710 - Shared Clear  (Although shared, there are no foreign Class A's on 710 (hence it is not "shared" in the conventional meaning of that term.) 

WOR     New York, NY             I-B     [A]     50 kW DA-1

KIRO     Seattle, WA                 I-B     [A]     50 kW DA-N
    Protects KSPN 

KSPN     Los Angeles, CA         II-B     [B]     50 kW/10 kW DA-N
    Former calls: KRLO, KEJK, KMPC, KTZN, KDIS 

WAQI     Miami, FL                  II-B     [B]     50 kW DA-2
    Former calls: WFTL, WGBS

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720 - US Clear

WGN       Chicago, IL                 I-A     [A]     50 kW ND

KOTZ      Kotzebue, AK             I-N     [A]     10 kW ND

KDWN     Las Vegas, NV          II-A     [B]     50 kW DA-N
    Former call:  KQRX

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730 - Mexican Clear 

CKAC    Montreal, QC               I-B    [A]     50 kW DA-1

XEX       Mexico, DF                 I-A     [A]     100 kW ND
    (Has operated with as much as 500 kW)

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740 - Canadian Clear Channel

CHWO    Toronto, ON               I-A    [A]     50 kW ND
    (Replacement station for CBL Toronto)

KCBS     San Francisco, CA       II-B    [B]     50 kW DA-2

WQTM  Orlando, FL                  II-B   [B]     50 kW DA-2
    (Former calls: WWNZ, WKIS)
    
KRMG   Tulsa, OK                    II-B    [B]     50 kW/25 kW DA-2

KTRH    Houston, TX                II-B    [B]     50 kW DA-2

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750 - US Clear

WSB     Atlanta, GA                  I-A     [A]     50 kW ND

KFQD   Anchorage, AK            I-N     [A]     50 kW ND
    Formerly Class II

CBGY   Bonavista Bay, NF       I-B     [A]     10 kW DA-2

KMMJ   Grand Island, NE         II-B    [B]     10.5KW DA-1
    (Formerly a Limited Time II-C)

KXL     Portland, OR                II-B    [B]     50 kW/20 kW DA-2
    (Formerly a Limited Time II-C)

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760 - US Clear

WJR    Detroit, MI                     I-A     [A]     50 kW ND

KFMB San Diego, CA               II-B    [B]     5 kW/50 kW DA-N
    (Moved from 540 in 1963, the day power is limited by a contour overlap with KBRT 740 Avalon, CA.)

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770 - US Clear

WABC     New York, NY           I-A     [A]     50 kW ND 

KCHU     Valdez, AK                I-N     [A]     9.7 kW ND
    Former call: KGGN 

KKOB     Albuquerque, NM      II-A     [B]     50 kW DA-N

KTTH     Seattle, WA               II-B     [B]     50 kW/5 kW DA-2 
    Former calls: KNWX, KULL, KRPM, KXA)

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780 - US Clear

WBBM     Chicago, IL              I-A     [A]     50 kW ND

KNOM     Nome, AK                I-N     [A]     25 kW/14 kW ND

KKOH     Reno, NV                 II-A     [B]     50 kW DA-N
    Former calls: KROW, KCRL

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790 - Regional Channel 

CIGM     Sudbury, ON             III-A    [A]     50 kW DA-2

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800 - Mexican Clear Channel. 

XEROK   Ciudad Juarez, CH      I-A     [A]     150 kW ND  (Now runs at 20/50 kW)
    Former call: XELO 

CKLW     Windsor, ON (Detroit) II-B    [B]     50 kW DA-2 

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810 - US Clear

WGY     Schenectady, NY           I-B     [A]     50 kW ND

KGO     San Francisco,CA          I-B     [A]     50 kW DA-1

WHB     Kansas City, MO          II-B     [B]     50 kW/5 kW DA-N
    Former call: KCMO

WKVM  San Juan, PR                II-B     [B]     50 kW DA-1

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820 - US Clear

WBAP     Fort Worth, TX           I-A     [A]     50 kW ND

KCBF     Fairbanks, AK              I-N     [A]     10 kW ND
    Former call: KFRB (once had a CP for 50 kW ND)

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830 - US Clear

WCCO     Minneapolis, MN         I-A     [A]     50 kW ND

KMXE     Orange, CA                 II-B     [B]     50 kW/20 kW DA-N
    Former calls: KPLS, KSRT

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840 - US Clear

WHAS     Louisville, KY              I-A     [A]     50 kW ND

KXNT     North Las Vegas, NV    II-B    [B]     50 kW/25 kW DA-2
    Former calls: KVEG, KBKK

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850 - US Clear
KOA     Denver, CO                     I-B     [A]     50 kW ND

KICY     Nome, AK                     I-N     [A]     50 kW ND
    Uses a 50 kW DA towards Siberia 11 PM TO 4 AM 

WEEI     Boston, MA                  II-B     [B]     50 kW DA-2
    Former call: WHDH

WTAR     Norfolk, VA                 II-B    [B]     50 kW/25 kW DA-2
    Former calls: WRAP, WNIS

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860 - Canadian Class I-A 

CJBC     Toronto, ON                  I-A    [A]     50 kW ND

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870 - US Clear

WWL     New Orleans, LA           I-A     [A]     50 kW DA-1

KHNR    Honolulu, HI                 II-B     [B]     50 kW DA-1
    Former call: KAIM (Currently operating at lower power from STA site.)

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880 - US Clear

WCBS     New York, NY               I-A     [A]     50 kW ND
    Former calls: WAHG, WBOQ, WABC, WCBS. 

KRVN     Lexington, NE                II-A     [B]     50 kW DA-N

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890 - US Clear

WLS     Chicago, IL                       I-A     [A]     50 kW ND

KBBI    Homer, AK                       I-N     [A]     10 kW ND

KDXU  St. George, UT                 II-A     [B]     10 kW DA-N

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900 - Mexican Class I-A 

CKBI     Price Albert, SK               I-B     [A]     10 kW DA-N

XEW     Mexico, DF                      I-A     [A]     250 kW ND 

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910 - Regional Channel

KIYU     Galena, AK                    III-A     [B]     CP 12.5 KW ND

WFDF   Farmington Hills, MI       III-A     [B]     50 kW/19 kW DA-2

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940 - Canadian/Mexican clear 

CINW     Montreal, QC                  I-B     [A]     50 kW DA-1
    Replacement station for CBM Montreal

XEQ     Mexico, DF (Iztapalapa)     I-A     [A]     150 kW/50 kW ND 

KWRU  Fresno, CA                       II-B    [B]     50 kW DA-2
    Former call: KFRE

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950 - Regional Channel

WWJ     Detroit, MI                     III-A     [B]     50 kW DA-2

WPEN   Philadelphia, PA             III-A     [B]     5 kW/21 kW DA-N
    Two site operations.  CP: 25 kW/21 kW DA-2 

KJR     Seattle, WA                     III-A     [B]     50 kW DA-2

--------------------------------------------------------------------------------

970 - Regional Channel

WFLA  Tampa, FL                      III-A     [B]     25 kW/11 kW DA-2

--------------------------------------------------------------------------------

980 - Regional Channel

CKNW New Westminster, BC     III-A     [A]     50 kW DA-1 

--------------------------------------------------------------------------------

990 - Canadian Class I-A clear. 

CBW     Winnipeg, MB                 I-A     [A]     50 kW/46 kW ND

CBY     Corner Brook, NF             I-B     [A]     10 kW ND

WDYZ Orlando, FL                     II-B     [B]     50 kW/14 kW DA-2
    Former calls: WHOO, WMMA

--------------------------------------------------------------------------------

1000 This channel is shared with Mexico, with the Mexican "grandfathered" 
at 10 kW ND 

WMVP     Chicago, IL                     I-B     [A]     50 kW DA-2
    Former calls: WCFL, WLUP

KOMO     Seattle, WA                     I-B     [A]     50 kW DA-N

XEOY     Mexico, DF (Iztacalco)      I-B     [A]     50 kW/10 kW ND

--------------------------------------------------------------------------------


1010 - Canadian Class I-A clear 

CBR        Calgary, AB                     I-A     [A]     50 kW DA-1

CFRB     Toronto, ON                     I-B     [A]     50 kW DA-2

WINS     New York, NY                 II-B     [B]     50 kW DA-2
    Former call: WGBS 

--------------------------------------------------------------------------------

1020 - US Class 

KDKA     Pittsburgh, PA                 I-A     [A]     50 kW ND
Among the very first broadcast stations in the US. 

KAXX     Eagle River, AK               I-N     [A]     10 kW DA-N
    Former calls: KFFR, KCFA

KCKN     Roswell, NM                   II-A     [B]     50 kW DA-2
    Former calls: KSWS, KBCQ, KINF, KXEM

KTNQ     Los Angeles, CA             II-B     [B]     50 kW DA-2
    Former call: KPOP, KGBS

--------------------------------------------------------------------------------

1030 - US Clear

WBZ       Boston, MA                      I-A     [A]     50 kW DA-1

KTWO   Casper, WY                     II-A     [B]     50 kW DA-N

--------------------------------------------------------------------------------

1040 - US Clear

WHO     Des Moines, IA                  I-A     [A]     50 kW ND

--------------------------------------------------------------------------------

1050 - Canadian/Mexican Clear 

CFGP     Grande Prairie, AB             I-B     [A]     10 kW DA-1
    (SILENT AND DELETED?)

XEG     Monterrey, NL, Mexico         I-A     [A]     150 kW ND

WEPN New York, NY II-B [B] 50 kW DA-1
(FORMER CALLS WEVD, WUKQ, WFAN, WHN, WMGM, WHN)

--------------------------------------------------------------------------------

1060 - Shared with Mexico 

KYW Philadelphia, PA I-B [A] 50 kW DA-1 
(FORMER CALLS WRCV, KYW)

XEEP Ejercito de Oriente, DF I-B [A] 100 kW/20 kW ND


--------------------------------------------------------------------------------

1070 - US Clear
1070 Shared with Canada. 

KNX Los Angeles, CA I-B [A] 50 kW ND
KNX was a de-facto Class I-A, on 1050, which is why it is 
50 kW ND-U. It was broken down to a Class I-B when it was 
moved from 1050 to 1070. The Canadian is, of course, a 
Class I-B, and is also 50 kW ND-U. Perhaps the only dual 
50 kW ND-U allocations.
Steve Blodgett's KNX Site 

CBA Moncton, NB I-B [A] 50 kW ND


--------------------------------------------------------------------------------

1080 - US Class 

WTIC Hartford, CT I-B [A] 50 kW DA-N
OPERATES ND UNTIL SUNSET IN DALLAS

KRLD Dallas, TX I-B [A] 50 kW DA-N

KUDO Anchorage, AK I-N [A] 10 kW ND
(FORMER CALLS KASH, KKSD, KASH, KTNX, KANC)

KFXX Portland, OR II-B [B] 50 kW/10 kW DA-2
(FORMER CALLS KOTK, KWJJ)


--------------------------------------------------------------------------------

1090 - Mexican Clear

WBAL Baltmore, MD I-B [A] 50 kW DA-N

KAAY Little Rock, AR I-B [A] 50 kW DA-N
Originally at Hot Springs, AR as a II-B, Perhaps the last 
I-B added in the US. (FORMER CALL KTHS)

XEPRS Rosarito, BCN I-B [A] 50 kW DA-N
(FORMER CALL XERB) 

KPTK Seattle, WA II-B [B] 50 kW DA-2
(FORMER CALLS KYCW, KMPS, KRPM, KMPS, KING)


--------------------------------------------------------------------------------

1100 - US Clear 

WTAM Cleveland, OH I-A [A] 50 kW ND
(FORMER CALLS WWWE, WKYC, KYW, WTAM) 

KNZZ Grand Junction, CO II-A [B] 50 kW Day/36 kW CH
/10 kW N DA-N
[NIGHT PATTERN MODIFIED TO ADD PROTECTION TO KFAX, 
FORMER 50 kW Critical Hours DA DELETED] 
(FORMER CALLS KJYE, KVEE, KIIO, KREX)

KFAX San Francisco II-B [B] 50 kW DA-1
The granddaddy of weird allocations. For a time was 50 kW 
daytime, 1 kW (from a different site across the bay in 
San Francisco itself) from sunset until 9 PM PT, then back 
to 50 kW from 9 PM PT (midnight at WTAM) until sunrise. 
[KFAX UPGRADED TO 50 kW FULL TIME IN THE LATE 1970'S USING 
KTNQ AS A PRECEDENT. THIS PERMITTED KFAX TO PROTECT THE 
SKYWAVE COVERAGE AREA OF WTAM, AND THE NIGHTTIME GROUNDWAVE 
COVERAGE OF KNZZ]
(FORMER CALL KJBS PRE 1959)


--------------------------------------------------------------------------------

1110 - US Clear

WBT Charlotte, NC I-B [A] 50 kW DA-N
WBT was a de-facto Class I-A. Purchased by CBS. Broken down 
to a de-facto Class I-B by the addition of KFAB, which had 
been a share-timer on 780. Sold by CBS before the DA was 
installed. Operated 50/10 kW ND-U until the DA was installed 
after the war. 

KFAB Omaha, NE I-B [A] 50 kW DA-N 
Was a share-timer, on 780. Moved to 1110 in order for CBS' 
WBBM to become a Class I-A. 

KDIS Pasadena, CA II-B [B] 50 kW/20 kW DA-2
Ok, so it is now KDIS ... and just a faded memory of the 
legacy of KRLA. 
(FORMER CALLS KSPN, KRLA, KXLA, KPAS)
KRLA Tour KRLA History 


--------------------------------------------------------------------------------

1120 - US Clear 

KMOX     St. Louis, MO                     I-A     [A]     50 kW ND


KPNW     Eugene, OR                       II-A     [B]     50 kW DA-1



--------------------------------------------------------------------------------

1130 - U.S.-Canadian clear 

KWKH Shreveport, LA I-B [A] 50 kW DA-N 

WBBR New York, NY I-B [A] 50 kW DA-N 
(FORMER CALL WNEW) 

CKWX Vancouver, BC I-B [A] 50 kW DA-2
This is the only Canadian Class I station not formerly owned 
by CBC in modern times (CJBC was privately owned, in pre-war 
times, however). 

KFAN Minneanapolis, MN II-B [B] 50 kW/25 kW DA-2
(FORMER CALL WDGY)


--------------------------------------------------------------------------------


1140 - Shared with Mexico 

WRVA Richmond, VA I-B [A] 50 kW DA-1

XEMR Monterrey, NL I-B [A] 50 kW DA-N

KHTK Sacramento, CA II-B [B] 50 kW DA-2
(FORMER CALL KRAK)


--------------------------------------------------------------------------------


1150 - Regional Channel 

CKX Brandon, MB III-A [A] 50 kW/10 kW DA-2 
(DELETED?)

KTLK Los Angeles, CA III-A [B] 50 kW/44 kW DA-2
(FORMER CALLS KXTA, KIIS, KPRZ, KUSA, KIIS, KRKD)

WHBY Kimberly, WI III-A [B] 20 kW/25 kW DA-2
(FORMER CALLS WYNE)


--------------------------------------------------------------------------------

1160 - US Clear 
1160 KSL Salt Lake City, UT I-A [A] 50 kW ND

WYLL Chicago, IL II-B [B] 50 kW DA-2
(FORMER CALLS WXRT, WSCR, WJJD) TWO SITES 


--------------------------------------------------------------------------------

1170 - US Clear
1170 WWVA Wheeling, WV I-B [A] 50 kW DA-N

KFAQ Tulsa, OK I-B [A] 50 kW DA-N
(FORMER CALL KVOO)

KJNP North Pole, AK I-N [A] 50 kW/21 kW ND
Formerly 50 kW DA-N

--------------------------------------------------------------------------------

1180 - US Class 

WHAM Rochester, NY I-A [A] 50 kW ND

KOFI Kalispell,MT II-A [B] 50 kW/10 kW DA-N

RADIO MARTI Marathon Key, FL -- -- 100 kW DA-1
U.S. IBB / VOA, Not in FCC DATA 

--------------------------------------------------------------------------------

1190 - US Class 

WOWO Ft. Wayne, IN I-B [B] 50 kW/9.8 kW DA-N 
Originally a powerhouse on the 1190 channel, WOWO was 
purchased by ICB, owner of WLIB. Power reduced to 9.8 kW, 
nights, which effectively broke this station down to a Class 
II-B. Was a de-facto Class I-A until co-owned KEX was moved 
from 1180 to 1190. 
WOWO Tour 

KEX Portland, OR I-B [A] 50 kW DA-N
Was a share-timer, with KOB, on 1180. Became a de-facto Class 
I-B when Westinghouse's WOWO was broken down to a Class I-B 

XEWK Guadalajara, JA I-B [A] 50 kW/10 kW ND 

WLIB New York, NY II-C [B] 10 kW/30 kW DA-2
Formerly a daytimer, became a fulltimer with the breaking 
down of WOWO. 


--------------------------------------------------------------------------------


1200 WOAI San Antonio, TX I-A [A] 50 kW ND

WCHB Taylor, MI II-B [B] 50 kW/15 kW DA-2
(FORMER CALLS WMKM, WBTI)


--------------------------------------------------------------------------------


1210 WPHT Philadelphia, PA I-A [A] 50 kW ND
(FORMER CALLS WPTS, WGMP, WOGL, WCAU)

KGYN Guymon, OK II-A [B] 10 kW DA-N
HAS AN APPLICATION FOR OKLAHOMA CITY 50 kW/10 kW DA-2


--------------------------------------------------------------------------------


1220 Mexican Class I-A clear 

XEB San Lorenzo Tezonco, DF I-A [A] 100 kW ND 

WHKW Cleveland, OH II-B [B] 50 kW DA-1
(FORMER CALLS WHKZ, WHK, WHKC, WKNR, WGAR)


--------------------------------------------------------------------------------


1260 Regional Channel 

CFRN Edmonton, AB III-A [A] 50 kW DA-N 


--------------------------------------------------------------------------------


1270 Regional Channel

WXYT Detroit, MI III-A [B] 50 kW DA-2
(FORMER CALL WXYZ)


--------------------------------------------------------------------------------


1300 Regional Channel

WOOD Grand Rapids, MI III-A [B] 20 kW DA-2


--------------------------------------------------------------------------------


1410 Regional Channel 

CFuN Vancouver, BC III-A [A] 50 kW DA-2


--------------------------------------------------------------------------------


1500 WTWP Washington, DC I-B [A] 50 kW DA-2
(FORMER CALLS WTOP, WJSV)

KSTP Minneapolis, MN I-B [A] 50 kW DA-N
FRANKLIN TYPE ANTENNA DAYTIME, 179 DEGREES OVER 179 DEGREES


--------------------------------------------------------------------------------


1510 WLAC Nashville, TN I-B [A] 50 kW DA-N

KGA Spokane, WA I-B [A] 50 kW DA-2

WWZN Boston, MA II-B [B] 50 kW DA-3
(FORMER CALLS WSZE, WNRB, WSSH, WKKU, WMRE, WITS, WMEX)


--------------------------------------------------------------------------------


1520 WWKB Buffalo, NY I-B [A] 50 kW DA-1 
Originally WKBW 

KOKC Oklahoma City, OK I-B [A] 50 kW DA-N
(FORMER CALL KOMA)

KGDD Oregon City, OR II-B [B] 50 kW/15 kW DA-2
(FORMER CALLS KZNY, KKSN, KFXX, KSGO, KYXI, KYMN)


--------------------------------------------------------------------------------


1530 WCKY Cincinnati, OH I-B [A] 50 kW DA-N
Still licensed to use ND-D from LSR Cincinnati to LSS 
Sacramento. This was the payback for allowing KFBK to move 
from a Class IV to a Class I-B, whereas before WCKY had 1530 
all to itself.
(FORMER CALLS WSAI, WCKY)

KFBK Sacramento, CA I-B [A] 50 kW DA-2
Boasts a very Efficient Franklin Antenna
KFBK Tour 


--------------------------------------------------------------------------------


1540 Shared with ZNS-1, Bahamas 

KXEL Waterloo, IA I-B [A] 50 kW DA-N

ZNS-1 Nassau, Bahamas I-B [A] 50 kW DA-1 

KMPC Los Angeles, CA II-B [B] 50 kW/37 kW DA-2
(FORMER CALLS KCTD, KXMG, KXED, KSKQ, KZLA, KPOL)

WDCD Albany, NY II-B [B] 50 kW DA-1
(FORMER CALLS WPTR, WDCD, WPTR)


--------------------------------------------------------------------------------


1550 Shared Canadian/Mexican. The Canadian is 10 kW DA-1. The Mexican is 
grandfathered at 10 kW, believed to be operating 100 kW/10 kW ND 

CBE Windsor, ON I-B [A] 10 kW DA-1

XERUV Jalapa, VC I-B [A] 10 kW ND 

KKAD Vancouver, WA II-B [B] 50 kW/12 kW DA-N
(FORMER CALLS KVAN, KMJK, KVAN, KGAR)


--------------------------------------------------------------------------------


1560 WQEW New York, NY I-B [A] 50 kW DA-2
(FORMER CALL WQXR)

KNZR Bakersfield, CA I-B [A] 25 kW/10 kW DA-N
Grandfathered at 10 kW N. 
Presently operating 25 kW-D, 10 kW-N, DA-N. 
(FORMER CALL KPMC)


--------------------------------------------------------------------------------


1570 Mexican Class I-A 

XERF Ciudad Acuna, CI I-A [A] 250 kW ND
Reported recently to be operating at 10 kW ND 


--------------------------------------------------------------------------------


1580 Canadian Class I-A 

CHUC Cobourg, ON --- [A] 10 kW DA-1 
(REPLACED CBJ Chicoutimi, QU I-A [A] 10 KW DA-1)
(CHUC NOW SILENT AND DELETED) 

CKDO Oshawa, ON --- [A] 10 kW DA-1 
(Replacement for CHUC) 

KMIK Tempe, AZ II-B [B] 50 kW DA-N
(FORMER CALLS KNIX, KCWW, KTUF)

KBLA Santa Monica, CA II-B [B] 50 kW DA-2
(FORMER CALLS KDAY, KOWL)


--------------------------------------------------------------------------------


1590 Regional Channel 

NEW Yellowknife, NT --- [A] 50 kW DA-1 


--------------------------------------------------------------------------------

... more coming....., including .... 

Frequency            Call Letters                            State

710                        WOR                              New York, NY

710                        KTZN                             Los Angeles, Ca

710                        KIRO                              Seattle, WA

720                        WGN                              Illinois

740                        KCBS                            San Francisco, Ca

750                        WSB                              Atlanta, Georgia

760                        WJR                               Detroit, Michigan

770                        WABC                           New York, NY

770                        KOB                               Albuquerque, NM

770                        KNWX                           Seattle, WA

780                        WBBM                          Chicago, Illinois

800                        CKLW                          Windsor, Ontario, (Detroit)

810                        KCMO                           Kansas City, Missouri

810                        KGO                              San Francisco, CA

810                        WGY                             Schenectady, New York

820                        WBAP                           Dallas/Ft Worth, Texas

830                        WCCO                          Minneapolis, Minnesota

840                        WHAS                           Louisville, Kentucky

850                        KOA                              Denver, Colorado

850                        WHDH (WEEI)              Boston, Mass

860                        KTRB                            San Francisco, Ca

870                        WWL                             New Orleans, Louisiana

880                        WCBS                           New York, NY

890                        WLS                              Chicago, Illinois

940                        KWRU                           Fresno, Ca

1000                      WMVP (WCFL)             Chicago, Ill

1000                      KOMO                           Seattle, WA

1010                      WINS                             New York, NY

1020                      KDKA                            Pittsburgh, PA

1020                      KINF                              Roswell, NM

1020                      KTNQ                           Los Angeles, Ca

1030                      WBZ                              Boston, Massachusetts

1040                      WHO                             Des Moines, Iowa

1050                      WEPN                           New York, NY

1050                      KTCT                           San Mateo, Ca

1050                      XEG                              Monterrey, Mexico

1060                      KYW                             Philadelphia, PA

1070                      KNX                              Los Angeles, Ca

1080                      WTIC                            Hartford, Connecticut

1080                      KRLD                            Dallas, Texas

1080                      KWJJ                             Portland, Oregon

1090                      WBAL                           Baltimore, Maryland

1090                      KTHS                            Little Rock, AR

1090                      KOMO                           Seattle, WA

1090                      XEPRS                           Rosarito, BC

1100                      KFAX (KJBS)              &nb