Noteson 6-Element Wide-Band 2-Meter Yagis Circular Polarizationhttps://www.qsl.net/sv1bsx/antenna-pol/polariz Inthe week when we celebrates Hidetsugu Yagi's 130th Birthday we selected 5 homemade Yagi-Uda Antenna Project for the 7 MHz.. 40 meter Yagi antennas, are complex to build due to the overall antenna dimension, and the world wide web unfortunately does not offer many projects, but we discovered some realizations that could inspire you to build one. BUILDTHE J BEAM FOR 2 METERS AND UP! Condensed from an article by Ed Bathgate, N3SDO as published in CQ VHF Magazine July, 1988 and used with his permission. The element lengths and spacings are a combination of info from the ARRL Antenna Book section on 2 meter Yagi antennas, and from experiments with a field strength meter and different Forwardgain of this antenna is maximum at the low end of the band and decreases about 0.1 dB per 100 kHz. Gain is best in the first half MHz of 10 meters, rivaling the gain of the 8'-boom Yagi. It remains as good as any 2-element Yagi all the way to the top end of 10 meters. 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. rBlCXQ.

how to build a 2 meter yagi antenna