Blaw-Knox Antenna

Blaw-Knox Antenna (HMFWP)

Location: Mason, OH 45040 Warren County
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Country: United States of America
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N 39° 21.13', W 84° 19.63'

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In 1922, during the infancy of broadcast radio, the call letters WLW were assigned to the station begun by Cincinnatian Powell Crosley Jr. The station moved its transmitting operations to Mason in 1928, and by April 17, 1934, WLW had permission to operate experimentally at 500,000 watts. Becoming the first and only commercial radio station to broadcast at this "superpower," WLW was formally opened at 500,000 watts by President Franklin D. Roosevelt on May 2, 1934. Using its 831-foot Blaw-Knox antenna to broadcast at ten times the power of any station, it earned the title "The Nation's Station." Locals reported hearing broadcasts on barbed wire fences, milking machines, rainspouts, water faucets, and radiators. The custom built transmitter, a joint venture between RCA, GE, and Westinghouse, remained in operation until March 1, 1939 when the Federal Communications Commission (FCC) ordered the station to return to broadcasting at 50,000 watts.
Series This marker is part of the Ohio: Ohio Historical Society series
Marker Number5-83
Year Placed2002
Placed ByOhio Bicentennial Commission, The Longaberger Company, Mason Historical Society, City of Mason, Warren County Board of Commissioners, and The Ohio Historical Society
Marker ConditionNo reports yet
Date Added Tuesday, September 23rd, 2014 at 12:17am PDT -07:00
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Locationbig map
UTM (WGS84 Datum)16S E 730310 N 4359265
Decimal Degrees39.35216667, -84.32716667
Degrees and Decimal MinutesN 39° 21.13', W 84° 19.63'
Degrees, Minutes and Seconds39° 21' 7.80" N, 84° 19' 37.80" W
Driving DirectionsGoogle Maps
Area Code(s)513
Closest Postal AddressAt or near 748-772 Tylersville Rd, Mason OH 45040, US
Alternative Maps Google Maps, MapQuest, Bing Maps, Yahoo Maps, MSR Maps, OpenCycleMap, MyTopo Maps, OpenStreetMap

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