Ham Radio . Magnum Experimentum
Antennas, experiments, engineering and other articles of interest to radio folks.
Using NEC we compare various antenna designs to better understand winning antenna concepts and expose less than optimal ideas.
We examine if 5/8 Wave J-Poles are better than 1/2 Wave J-Poles.
Another 5/8 J-Pole Design arranged as a Collinear… can it justify the complexity and extra materials?
Longer is not always better in the world of antennas. Such is the case of the 5/4 wave vertical antenna… a Super J-Pole Wannabe Antenna.
This J-Pole, Monopole, Coaxial Dipole VHF EZNEC shootout addresses a comment made that no models exist for j-pole and coaxial dipole antenna simulation.
Continuing our NEC Shootout between the 43 foot vertical available from DX Engineering or Zero Five and the adjustable height BigIR antenna available from SteppIR antennas we now analyze them in the 40 meter band.
Continuing our NEC Shootout between the 43 foot vertical available from DX Engineering or Zero Five and the adjustable height BigIR antenna available from SteppIR antennas we now analyze them in the 20 meter band.
Continuing our NEC Shootout between the 43 foot vertical available from DX Engineering or Zero Five and the adjustable height BigIR antenna available from SteppIR antennas we now analyze them in the 15 meter band.
In a previous post we promised to analyze the merits of the 43 foot tall tuner-required antenna vs. the adjustable BigIR vertical from SteppIR. We did and here are the results.
Considering a vertical? Among all the dipoles, beams and other types of antennas, the lowly vertical has regained some popularity thanks, in part, to the BigIR SteppIR and, more recently, the 43 foot vertical offered by DX Engineering and Zero Five antennas.
Myths abound concerning how J-Poles do so well. Here is an EZNEC shootout between a 2 meter J-Pole and a Monopole with radials.