WIDE-BAND OPEN-WIRE PROGRAM SYSTEM 



357 



Z 900 



< 800 



£ 700 



500 



6 -100 



-400 



12 3 4 5 



FREQUENCY IN KILOCYCLES PER SECOND 



Fig. 4 — Impedance'of 8-inch spaced open- wire pairs. 



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s—i, 



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SECTION 2 SECTION t 



Fig. 5 — Low-frequency attenuation equalizer 



BASIC SECTION 



