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Coaxial Folded Dipole
The traditional folded dipole made from tubing or wire, and possibly the lightweight version made from 300 ohm ribbon cable
post 31 Mar 2024
Antenna Calculator Links →
Design Frequency Gain/Boom Length Reflector Spacing and Director
Experiment with a yagi design
Toroidi Amidon: quanto filo per l'avvolgimento, IZ4SJP
Il programma calcola l'induttanza di un avvolgimento monostrato in aria - The program calculates the inductance of a single-layer winding in air
Half-wave Dipole Antenna Calculator
Dipoles antennas are easy to build and can be very effective when placed half a wavelenth or more above ground.Enter the desired operating frequency in megahertz to get a good starting length for a dipole in both feet and meters
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Experiment with a yagi design
Il programma calcola l'induttanza di un avvolgimento monostrato in aria - The program calculates the inductance of a single-layer winding in air
Dipoles antennas are easy to build and can be very effective when placed half a wavelenth or more above ground.Enter the desired operating frequency in megahertz to get a good starting length for a dipole in both feet and meters
Take off angle of horizontal antenna For horizontal polarization, the electric field will move sideways on a horizontal plane, while for vertical polarization it will oscillate up and down on a vertical plane
Rx antennas 4Square Rx Vertical Array My frequency design of 1.825 MHz a 90 degrees line would be 33,70 metersinstead of the previously calculated 33,27 m
Atu balanced feeder antenna system An ATU has the advantage of bringing the feeder-antenna system to resonance, act as a band pass filter both on receive and transmit and a low SWR