Cutone piece of copper wire at a time using your wire cutters. Cut each piece a little longer than the measurement you need. File the rough edge off, giving you the correct measurement needed. Place the cut piece of copper wire beside the number on the piece of paper to avoid confusion. The reflector is number 1. The2-m/70-cm combination presents a different challenge because the frequency ratio is about 3:1. Consider two dipoles, cut for 20 and 10 meters. We can easily use both dipoles with a common feedpoint. The reason is fairly simple: when one dipole shows a low impedance, the other shows a high impedance. Whenthe antenna is needed, the tape measure sections naturally unfold and function extremely well with a 7 dB directional gain and can be adjusted to get a 1:1 SWR at any desired 2 m frequency MartinSteyer, Die Aue 2, D-37269 Eschwege-Germany. e-mail-adress: dk7zb(at) Member of GDXF (25), UKSMG (1055), AGCW (3513) This homepage is dedicated to the homebrewing of equipment, especially for building HF- and VHF-Yagi-antennas. Commercial use of these designs only with the permission of the author! MotorolaUHF Antenna (NMO) $20.00. Tap light for. unwired dark spots. 50 cents. Various night lights. 50 cents. Use our simple calculator to determine approximate dimensions of materials needed to build a 3-element Yagi/Uda antenna, and then shop for your needs on our other pages and select from our inventory of aluminum, fiberglass, coax 4010 Delta Loop Antenna. A multi band inverted delta loop antenna project that can be used from 40 to 10 meters band with full details and analysis of antenna performances on each band, document includes EZNec reports and setup pictures. ZZ Wave Net. ZZ Wave Net is a 40 & 80 meter full wave loop designed to fit on a city lot. Hereis presented a model of 4 elements fullsize yagi antenna for 20m band. The model is optimized for the boomlength of 7.5 meters while keep maintain good VSWR < 1:1.2 throughout 20m band, gain, and F/B ratio. These can be achieved by using 3 elements basic model and then adding a director which is closely coupled to the driven element. zc4L.

how to build a 2 meter yagi antenna