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BELL SYSTEM TECHNICAL JOURNAL 



100 200 300 4O0 500 AOO 700 800 



FREQUENCY- KILOCYCLES 



Fig. 22 — Attenuation of 19 gauge cable pairs 

 A, on reel, 247 feet Bell Tel. Labs., Inc.; B, aerial cable, 3.6 miles, Ticonderoga, N. Y. 

 Curves A and B show average of 10 pairs. 



data at 68 degrees Fahrenheit. Figure 22 shows results on 19-gauge pairs 

 at 55 degrees from field and laboratory data up to 700 kc. 



