.
Line Size
% Efficiency
1000'
1500'
2000'
1-5/8" Rigid
63.39
50.47
40.18
1-5/8" Flex
62.09
48.92
38.55
3-1/8" Rigid
79.98
71.53
63.97
3" Flex
72.44
61.66
52.48
4-1/16" Rigid
84.33
77.45
71.12
4" Flex
77.09
67.69
59.43
5" Flex
83.37
76.12
69.50
6-1/8" - 75 W Rigid
89.98
85.31
80.91
8-3/16" - 75 W Rigid
92.47
88.92
85.51

 


Television Channels 2 - 6
Estimated field strength exceeded at 50 percent
of the potential receiver locations for at least 50 percent
of the time at a receiving antenna height of 30 feet.
.

49