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A four element Quad is best antenna for its size followed closely by my “Extended 3 element” Quad (that has better directivity – covered in another paper).
8 mar 2022 · Plots for 2-element 10m single support delta loop quad. vertically polarized wire quad. When you can set your antenna up looking across salt water in the target direction, say, from Ho’okipa, Kodiak, or Ham’s Bluff, then a vertically polarized signal can work very well over long distances.
A Quad is a balanced antenna, and should be fed in a balanced manner. To this end, I use a choke BalUn at each feedpoint. At the 30, 20 and 17m feedpoints, I use 12 turns of RG58 wound as shown in the drawing below.
12 lip 2022 · TV antennas. High performance HDTV BiQuad antenna; Optimized DIY Yagi-Uda for digital TV; Logperiodic antenna (LPDA) for On Air TV
The Quad Beam Structure. As shown in Figure 1 , a good 10- meter quad can be built from two wire loops. If the wire you use is #14 bare copper (stranded or solid), the driven element loop is 105.3" per side or 421.2" overall.
Build a Stronger 2 Element Quad A Different way to construct a tried and true antenna out of PVC, especially for the 10 meter and higher frequencies.
12 paź 2015 · EI7BA Multiband Cubical Quads projects, includes two elements quad antennas for 10 12 15 17 20 meters band. Performance considerations, detailed pictures and construction notes. BiQuad Antenna for 144/440
