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J Pole for 2 meters, 220, 440 and up!

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J Pole for 2 meters, 220, 440 and up!

Coax center conductor attaches to the Long section feed point, shield attaches to the short section feed point






Antenna Calculator Links


Amateur Vertical Antenna Calculator
This calculator is designed to give the vertical length height of a particular antenna

Radar Range Calculator
This calculator calculates the maximum range of a radar based on the power transmitted, system gain and receiver sensitivity

Antenna beamwidth calculator
Enter the diameter of your parabolic dish in m metres and the operating frequency in GHz Gigahertz

Antenna EiRP Estimator, KD4CGA
Power from Rig Watts, Frequency MHz, Coax Type, Coax Length Metres, Antenna Type

Antenna matching calculations, WB5CXC
Calculates the network to match a line to a specific complex load