Broadcasting (Oct - Dec 1950)

Record Details:

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OCTOBER 2, 1950 ' BROADCASTI TELECASTING NEW ANTENNA MAKES WHO A FAR BEHER BUY THAN EVER! WHO^s Potential Nighttime Audience Increased 92.7%! WHO will be operating soon with two new 50 kw transmitters (AM and FM), two new antennas, and a new 780-foot tower. Representing a $400,000 investment, this new equipment not only improves WHO's transmission, hut also brings two hundred thousand new people within WHO^s .5 millivolt contour — nearly three million new people within WHO's nighttime fading zone! Here are the figures: BEFORE NOW INCREASE Area Inside .5 Millivolt Contour (Square Miles) 84,500 89,000 5.3% Population Inside .5 Millivolt Contour 3,890,000 4,100,000 5.4% Area Inside Nighttime Fading Zone (Sq. Miles) 73,000 125,300 = 71.6% Population Inside Nightlime Fading Zone 3,162,400 6,096,300 92.7% *Area of Iowa is 52,680 sq. mi. Population figures based on 1940 Census. '$ -.. '■ s. NEW AM EQUIPMENT WHO'S new 780-foot tower, a 300-degree verticaldirectionalized antenna, is the result of years of research and experimentation by WHO'S Technical Research Laboratory. Before the equipment was actually built, a small model tower and antenna were erected and operated at ten times WHO's frequency. This model test made it possible for WHO's engineers to perfect the design and to determine exactly what the new equipment would do in terms of more effective transmission. The new antenna's design almost completely eliminates unusable radiation above 40 degrees from the earth and returns this energy to horizon levels. NEW FM EQUIPMENT A new 12-bay super-gain FM antenna has been installed near the top of the 780-foot tower. This antenna radiates 400 kw effective radiated power and is driven by a new 50 kw FM transmitter. Space has also been provided on the tower for possible future installation of a super-gain TV antenna. WHO's major investment in new AM and FM equipment makes this station the most modern 50 kw operation in the U.S. — is proof of who's determination to provide its listeners with topnotch radio service ... its advertisers with outstanding radio values. Tlie 1950 Iowa Radio Audience Survey gives further evidence of who's leadership . . . reveals that WHO is "listened to most" by 37.5% of Iowa's radio families, daytime — 43.9%, nighttime. Get all the facts about WHO, including a complimentary copy of the 1950 Survey. Write direct or ask Free & Peters. + far IOWA PLUS! + DES MOINES . . . 50,000 WATTS Col. B. J. Palmer, President P. A. Loyet, Resident Manager FREE & PETERS. INC. National Representatives oi iviarcn 3 ir7Q