WebJun 27, 2009 · Another idea that is simpler is to connect a wire at the top and spaced 2-3 feet from the tower. Connect the feedline between ground and the wire at the bottom and you now have a folded monopole antenna. Often all that is required is a series capacitor to tune it or you could use an auto tuner in this case. The heavier the drop wire the better BTW. WebSep 3, 2010 · Shunt fed tower: 90 feet high with LOTS of top loading from HF antennas (see other videos). Wire is 24 inches out from tower (Made up of RG213 with braid and...
A Lowband Antenna that is Almost Free
WebMay 3, 2024 · This shows the method for shunt feeding a tower. Using two different analyzers I show how to find the 50 Ohm point on the tower to achieve a 1:1 SWR match. Also explained is the effect of wire diameter on SWR bandwidth and reactance. Omega … WebThe tower in the photo was put up just for test purposes and has an insulated base. The idea was to measure the tower resonance directly at the base (with the BNC on the shunt wire shorted) and then short the tower base connector and see if I could get the same results by measuring at the bottom of the shunt wire. on this file or in this file
160 Meter Shunt Fed Tower System - Vertical Antenna
Web2.At the base of the tower, carefully open the jacket of the coax feeding the beam and solder a small bonding wire to the coax shield, waterproof the cut, and bond to the base of the … Webhad good success with modeling my Rohn 45 shunt-fed triangular tower using Post by W6IZT at aol.com () Equivalent Cylindrical Diameter = 2 * CUBEROOT [ (D * F^2)/2] where D = tube diameter and F = Face width. For Rohn 45, D = 1.25" and F = 18", so the cylindrical diameter equivalent = 11.7446" WebApr 3, 2000 · Shunt-feeding a tower involves running some copper wire parallel to the tower which is connected to the tower at the feed point near the top and insulated at the bottom. The simplest method of feeding the … ios innovation of suiting