Here is my conventional J-Pole model.
1. is in Free Space showing Average Gain test = 0.996 = -0.02 db error.
2. same model over Real Earth, with a choke on the mast wire to deal with CMC's.
Model shows better than average DBi gain at a low angle to the horizon.
EDIT:
3. J-Pole with a 111" inch DC stub below the antenna that counter balances the currents on the mast and feed line to help mitigate the CMC's.
1. is in Free Space showing Average Gain test = 0.996 = -0.02 db error.
2. same model over Real Earth, with a choke on the mast wire to deal with CMC's.
Model shows better than average DBi gain at a low angle to the horizon.
EDIT:
3. J-Pole with a 111" inch DC stub below the antenna that counter balances the currents on the mast and feed line to help mitigate the CMC's.
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