Television digest with electronic reports (Jan-Dec 1952)

Record Details:

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ESTIMATED cost TRANSMITTER INCLUDING TUBES 55 6 ANTENNA SYSTEM INSTALLED, (500 FT TOWER) 41 7 FREQUENCY AND MODULATION MONITORS STUDIO TECHNICAL EQUIPMENT, INCLUDING FILM 2.7 PROJECTION EQUIPMENT, LIVE STUDIO CAMERA, LIGHTING, AUDIO EQUIPMENT, FILM ACCESSORIES, SYNC GENERATOR, MISC 51 O COST OF ACQUIRING LAND (^ESTIMATE FOR EXAMPLE ONLY) ACQUIRING OR CONSTRUCTING BUILDING (ESTIMATE FOR 5.0 EXAMPLE ONLY) 20 0 OTHER ITEMS, INSTALLATION 2 0, ATTORNEY AND ENGINEERING 3.0, MISC 15. 6.5 TOTAL ESTIMATED COST 1825 ALL VALUES SHOWN IN THOUSANDS OF DOLLARS FIG. 20. Estimated cost of the typical 1-KW UHF station shown in Fig. 21. This includes one live studio and a 500-foot tower with highgain antenna which provides an ERP of approximately 20 KW. be difficult at times, but it is of utmost importance. “Concessions” to one advertiser will lead to the necessity for like concessions for others. When building an audience through increases in TV receiver circulation, long term sales contracts may be undesirable since rates are usually increased at six month intervals during the early, fast growing stages. Caution in Combining AM and TV Personnel Functions Combining of AM and TV station personnel functions should be avoided in the Sales and Production Departments. As an example, TV sales and AM sales may be, at times, competitive. Therefore, the salesman will promote sales of one medium to the disadvantage of the other. In production, AM and TV producers’ responsibilities are not at all similar and practices and techniques of one medium may be harmful if carried over to the other. In other departments, responsibilities perhaps can be combined, and will reduce operating expenses. However, analysis of efficiency and productivity should be made at intervals to determine practicability and extent of such combinations. VHF-UHF Considerations With the FCC’s Sixth Report, released April 14, 1952, seventy new channels were opened in the radio frequency spectrum for television stations. The new channels fall in the spectrum from 470 to 890 megacycles and are appropriately named Ultra High Frequency, or UHF, channels. The channels 2 to 13 allocated to television earlier are known as Very High Frequency, or VHF, channels since they are considerably lower in the radio frequency spectrum, channels 2 to 6 being from 54 to 88 megacycles and 7 to 13 from 174 to 216 megacycles. The channels are identical in width in the spectrum and TV standards now in effect apply to all channels. Differences in propogation characteristics exist for the channels. The FCC recognized this in permitting maximum powers of 100 kilowatts effective radiated powers for channels 2 to 6, 316 kilowatts for channels 7 to 13, and 1,000 kilowatts for channels 14 through 83. Reference to the coverage curves for various antenna height and effective radiated powers will demonstrate the differences in propogation. Although UHF channels will not equal VHF coverage when antenna height and effective radiated powers are equal, adjustments in planned antenna heights and power for UHF will place the new channels on good competitive basis with the lower VHF channels. Further, man-made interference and natural static are non-existent at the Ultra High Frequencies, which will allow excellent pictures, depending on receiver noise and sensitivity, under low signal levels. Your engineering consultant will assist you in planning a UHF station which will place you in a good competitive position with respect to the VHF stations in your area. For Further Details in Planning For further details in all phases of TV station planning, or for specific cost studies, the nearest RCA Broadcast Equipment Specialist is available to assist in your station planning. FIG. 21. Typical floor layout of a 1-KW UHF station which represents a good "starting-point" for planning. Broadcasters planning to increase power later with RCA highpower UHF amplifiers should allow more space now or expand size later. Note that each square on floor plan equals one square foot. 12