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Balun 1:1 - 1:4 - 1:9
Ho fatto una ricerca cercando sul web pagine relative ai tre tipi di balun piu' diffusi 1:1, 4:1, 9:1
post 09 Apr 2024
Toroid & balun Links →
Multi-Magnetic Balun 1:9 , 1:16 und 1:4
Take 0.7mm diameter copper wire, cut a length of 44cm and a length of 132cm
More Fun With Baluns
has a whole chapter on building 4:1 baluns. After reading through it, I decided to build the Ruthroff design
QRO baluns
suitable for QRO power levels. On a recommendation I went to Amidon's site and found all I need right there
QRP 1:1 Current-type Balun
This is actually a ferrite-loaded coaxial RF chokewhich just happens to yield the same result as a 1:1 current balun
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Take 0.7mm diameter copper wire, cut a length of 44cm and a length of 132cm
has a whole chapter on building 4:1 baluns. After reading through it, I decided to build the Ruthroff design
suitable for QRO power levels. On a recommendation I went to Amidon's site and found all I need right there
This is actually a ferrite-loaded coaxial RF chokewhich just happens to yield the same result as a 1:1 current balun
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