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2 Meter J-Pole antenna
Cut the tubing to the size shown for the desired band. The only section where size is not critical is the mast section. Use any size you desire for mounting purposes
post 06 Dec 2024
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Antenna Theory
Another approach to the problem is the "J-Pole" antenna. In this design, the antenna is elevated at least 1/4 wavelength above ground, thus eliminating the ground losses and "normalizing" the radiation pattern. The Impedance matching between the low impedance feed line and the high impedance of the end of the dipole
J-pole antenna costruzione
Calcolatore per antenna j-pole
J-Pole antenna
Jpole with standard 300 ohm twin lead tv cable
J-Pole Construction Drawings
Antenna j-pole Bibanda vhf - uhf
80
Another approach to the problem is the "J-Pole" antenna. In this design, the antenna is elevated at least 1/4 wavelength above ground, thus eliminating the ground losses and "normalizing" the radiation pattern. The Impedance matching between the low impedance feed line and the high impedance of the end of the dipole
Calcolatore per antenna j-pole
Jpole with standard 300 ohm twin lead tv cable
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