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Skyloop Antenna 3.5 to 50 MHz
I decided to try a new type of hf antenna skyloop or deltaloop
post 19 Feb 2024
Antenna 80 meter Links →
Switchable Antenna 80/160
A lot of radials, metallic railing, ground leak point, idraulic pipes are useful.19,5 m. of 1/2 dipole and about 7 meter of the feeder cable vertical portion, aren't enough to tune the antenna on 160 m
Quad cubical 80 mts
Cubical Quad antenna for 80 mts. Given that the working width in this band is very wide, the calculation is in Freq. 3,740 Mhz. and I will place the formula to calculate it according to the work preference of each one
Quarter wave 80 meter vertical antenna
In the summer of 2010, I decided to construct a 1/4 wave 80 meter vertical using 3" OD Aluminum Tubing. The large diameter yields broadbanded coverage of the 80 Meter Band. It's an 1/8 wave vertical on 160 meters also
Lets build an 80 meter 4 square
Each vertical is 65 feet high. I also have a 20 meter 4 square insde of these verticals with another 4,100 feet of radial wires, plus another 5,280 feet of radials for a 160 meter vertical and another 2,050 L/F for the 40 meter verticals to the south, all radials are tied together with a total of 34,928 L/F of radials
Building 80-meter 4-square
my 80-meter 4-square it will consist of 4 wire verticals
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A lot of radials, metallic railing, ground leak point, idraulic pipes are useful.19,5 m. of 1/2 dipole and about 7 meter of the feeder cable vertical portion, aren't enough to tune the antenna on 160 m
Cubical Quad antenna for 80 mts. Given that the working width in this band is very wide, the calculation is in Freq. 3,740 Mhz. and I will place the formula to calculate it according to the work preference of each one
In the summer of 2010, I decided to construct a 1/4 wave 80 meter vertical using 3" OD Aluminum Tubing. The large diameter yields broadbanded coverage of the 80 Meter Band. It's an 1/8 wave vertical on 160 meters also
Each vertical is 65 feet high. I also have a 20 meter 4 square insde of these verticals with another 4,100 feet of radial wires, plus another 5,280 feet of radials for a 160 meter vertical and another 2,050 L/F for the 40 meter verticals to the south, all radials are tied together with a total of 34,928 L/F of radials
my 80-meter 4-square it will consist of 4 wire verticals
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