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•NAEB NE'AS LETTER NAT IONAL ASSOCI AT 1 ON OF EDUCATIONAL BROADCASTERS A, James Cbel, Editor, Station VM L L, Urbana, Jll* February I, 1945 FCC PROPOSES ALLOCATION PLAN The. FCC announced its proposed allocation plan January l5, 1945 covering THE UTILI7ATI0N OF FREQUENCIES FROM 25,000 KC TO 30,000,000 KC. ThE report OF THE FCC AS IT APPLIES TO EDUCATION IS ENCLOSED WITH THIS NrwS Letter* Op importance to us mainly is the allocation of 20 channels ADJACENT TO THE LOW END OF THE COMMERCIAL FVl BAND FOR THE EXCLUSIVE USE BY NON-COMMERCIAL EDUCATIONAL BROADCASTERSp There is a great deal of discussion among the experts in FM transmission AS TO the VMSOOM OF MOVING THE FM BAND UP TO THE 84,000 TO *02,000 KC range. Your editor attended the convention in New York last week AND witnessed A RED-HOT DISCUSSION AMONG THE BEST ENGINEERS IN THE BUS¬ INESS ON THIS VERY TOPIC. As A MATTER OF FACT THE CONVENTION WAS EXTENDED TO SATURDAY AFTERNOON SO THAT A SPECIAL SESSION MIGHT BE DEVOTED TO THIS PROBLEM ALONE. The FCC propagation specialists of the engineering department prepared A paper V'HICH showed THAT THERE WOULD BE LONG-DISTANCE INTERFERENCE IF FM remained at ITS PRESENT SPOT IN THE SPECTRUM. ThE PAPER ALSO PURPORTED TO SHOW THAT THERE Y'OULO BE NO REDUCTION OF COVERAGE DUE TO THE USE OF THE HIGHER FRECUENCIES. MAJOR ARMSTRONG CONTESTED THIS POINT OF VIEW, POINTING OUT THAT THERE HAS NEVER BEEN TO HIS KNOWLEDGE ANY CASE OF DESTRUCTIVE INTERFERENCE DUE TO LONG DISTANCE TRANSMISSION AND THAT THE EQUIPMENT SITUATION WOULD BE MUCH MORE DIFFICULT. Your editor has witnessed some long distance interference but whether it COULD BE called DESTRUCTIVE OR NOT IS A MATTER OF OPINION. He HAS ALSO BEEN CALLED UPON TO DESIGN A NUMBER OF FM INSTALLATIONS AND IS PROCESSING A 50 KW COMMERCIAL FM APPLICATION AT THE PRESENT TIME. NqNE OF THE EQUIPMENT MANUFACTURERS WOULD GIVE ANY INDICATION OF HOW THEY WERE GOING TO GET 50 KV\I OUTPUT AT THOSE FREQUENCIES NOR CAN YOUR EDITOR SEE HOW THIS AMOUNT OF POWER AT THESE FREQUENCIES CAN BE TRANSMITTED TO AN ANTENNA 500 FEET HIGH WITHOUT EXCESSIVE LOSSES. UNDOUBTEDLY THE PROBLEM CAN BE WORKED OUT BUT THE SOLUTION IS NOT APPARENT NOW, The NAEB Allocat AT THE February IN A TECHNICAL W WE IN EDUCATION AND ALLOCATED TO FREQUENCIES THAT AVAILABLE BY THE OUR FREQUENCIES ALLY AT THE LOW ION Committee has decided not to offer an oral argument 28 HEARINGS on THE TOPIC SINCE WE HAVE NOTHING TO OFFER AY WHICH WOULD NOT BE PRESENTED BY OTHERS AND BECAUSE must feel VERY GRATIFIED THAT THE FCC HAS SEEN OUR NEEDS US 20 CHANNELS. We«RE SURE THAT WE CAN OPERATE AT ANY FCC SEES FIT TO ASSIGN SO LONG AS RECEIVERS ARE MADE MANUFACTURERS. ThIS IS ASSURED BY THE ALLOCATION OF CONTIGUOUS WITH THE COMMERCIAL FREQUENCIES AND INCIDENT- FREQUENCY ENOn?