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- 2 - MINIMUM STUDIO REQU I HEMINTS Por strictly "broadcasting purposes you will require a control room at least 20 feet square; a studio the same size adjoining the control room; and an announcer "booth 5 feet "by 10 feet also adjoining the control room. Your offices will not require the high space if it is not readily available. The control room, studio, and announcer "booth must have separate corridor entrances, and large double or triple glass windows (with the panes set non¬ parallel) should give visibility from the control room to the other two units. It is best for the announcer’s booth and studio to abut the control room on two adjoining, and not two opposite walls. Entrance to the booth and studio should be made by small corridors so that two sound-proof doors, constituting an efficient sound-lock, may be set up. Your own building or maintenance department can no doubt construct these doors, as well as double the walls surrounding the studio .and announcer booth. ■Ar far as accoustical treatment of these units is concerned, don’t let it worry you. Secure some accoustical celotex in the usual foot square blocks. Have this applied solidly to the ceiling and over three-fourths of the wall space, using care not to leave uncovered areas directly opposite. The un¬ covered areas, plus the doors and windows, will give the studio enough "bounce” but you will still have adequate absorption. For the floors, use any type of tile linoleum, -feccoustical experts may writhe at the simplicity of the accous- tioal problem as I have solved it, but it will work well for most small and medium sized units. Your control roon should also have some accoustical treat¬ ment. Apply the accoustical celotex to the ceiling and the top half of each wall first. If that doesn’t give you enough absorption;, additonal blocks of accoustical tile can be quickly glued on. Now back to the location again. If your college is unfortunately located in a depression, you’d better look for a location on the top floor of the highest building in your town and ignore the campus. After all, your space requirements are not excessive, and the rent of the necessary room should not be too high. However, if a location at or near a high point in your community is impossible, give up your EM ideas. As long as your station is at or near the highest point in your vicinity the location doesn’t have to be much higher than the surrounding land. If your topography is gently rolling and you can see out a mile or so from the roof of the building you select to house the station, the chances are that the visibility will be extended several miles from the top of the tower itself. Since the radio waves will easily cross two or more gentle horizons, your station, if operating on low power, will likely give service to all the area it supposed to. EQUIPMENT WD COSTS If you are going into PM for the first time, I ’A recommend that your transmitter be a 25(1 or 1,000 watt job—no higher. Most PM transmitters are so constructed that additional power units may be added to the basic unit, so you'd do well to start v/ith a lower power and see just what coverage you'll get. Perhaps your lower-powered transmitter will do all you want.