Rca1948FrequencyModu.. - The New Jersey Antique Radio Club

:PYLON ANTENNA 201saving in the cost of tower construction, if required, particularly inareas where icing and its attendant top-loading must be taken intoconsideration.The wind load at the center of the radiator sections is based on20 lbs. per square foot of the projected area and assumes a circularcross-section. The value of R xincludes the 300-mm. beacon.-o«-Hf^p\Pig. 10—Values for these design factors are given in the table here.SpecificationsThe following table gives the specifications for pylon radiators of1, 2, and 4 sections1 Sec. 2 Sec. 4 Sec.Power Gain, nominal 1.5 3 6Field Gain, nominal 1.23 1.73 2.45Weight, lbs. 1 350 700 2000Height, ft 13.5 27 54R lt lbs. 2 501 950 1868D lt ft 1V2 14 27y 6D 2, ins 19y 2 19y 2 i9y 2D s , ins. bolt circle 3 22% 22% 22%1Total weight including radiator, transmission lines, beacon, steps, andhardware.2Total wind load on radiator, including beacon. Based on 20 lbs. persq. ft. of projected area, all sections assumed round.'Mounting is by means of eighteen %-in. bolts on 22%-in. circle.