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Low-noise receiving antenna for 80 and 160 meters
The Square is simple to build, install andtune. Here I'll tell you what's required to make 21-foot Squares for 80 and 160 meters, or a single Square that works on 80 or 160 meters at the flick of a switch
post 25 Jan 2024
Low Band Receiving Antennas Links →
Rx antennas the TX3A DHDL
This will give an even betterpattern than the end-fire, and an RDFreaching 13 dB with a separation of 100 meters between the loops
Short beverage
La radio senza un' antenna adeguata e' come una macchina senza il motore,belle parole vero
Switchable directional EWE
A EWE designed to receive in any one of four directions. Relay switching at the base of the central support allows selection of any one of the four wires
Shunt-fed tower What is that?
A Anything can be made to radiate RF if you feed it properly including towers
Shunt-fed Radiators
A grounded vertical radiator may be shunt-fed as With shunt feed the radiator is grounded at its base, and the system is excited at the point where the shunt-feed wire is connected
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This will give an even betterpattern than the end-fire, and an RDFreaching 13 dB with a separation of 100 meters between the loops
La radio senza un' antenna adeguata e' come una macchina senza il motore,belle parole vero
A EWE designed to receive in any one of four directions. Relay switching at the base of the central support allows selection of any one of the four wires
A Anything can be made to radiate RF if you feed it properly including towers
A grounded vertical radiator may be shunt-fed as With shunt feed the radiator is grounded at its base, and the system is excited at the point where the shunt-feed wire is connected
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
Calculo da Antena Bazooka A double bazooka antenna is a combination that has a complete coaxial wave multiplied by its velocity factor and a total end-to-end length of 1/4 wave for each side affected by another driver shortening facto