Theantenna uses 1/2" aluminum elements. 3-Element 10-Meter Yagi Dimensions in Inches Design Frequency: 28.5 MHz Elements: 0.5" aluminum We can build a coil from this material. However, when installing it, we must be certain that the copper does not touch the aluminum elements. Otherwise, we shall see corrsion from electrolysis. However, we

Hereare the plans to build a 2 meter J-pole antenna: The above dimensions for the J-pole are in inches. Measurements on overall length, and stub length are from the centerline of the separation pipe (horizontal) to the top of the antenna. The Connect at measurement is 2 1/4 inches from the top of the horizontal member to the point of

CMNEC Input File for two-element, 2-meter collapsible Yagi. CM PT control card suppresses printing of element currents. CM TL control card specs transmission line in terms of Z,length,and shunt Y. CM Whip antenna specifications (sections fully extended): CM Segment 1 is 0.122 meters long and 0.00300 meters in radius.
Howwell does the antenna perform across 10 meters. The following table gives free-space figures across the band. Add about 5.5 dB to the gain for a height of about 1 wavelength. Modeled Performance of the 4-Element Wide-Band 10-Meter Yagi Freq. Gain F-B Ratio Impedance 50-Ohm
4 Clearly, building a Yagi tuned for 2 meters will likely have the best directional performance. Putting that aside, I'm trying to get information on what antenna type will have the best overall performance in the 2 meter band in an NFM mode. I have a 5/25 watt 2 meter FM transceiver that I'm currently using. 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. MOgZf.
  • bz8c5g6lyt.pages.dev/104
  • bz8c5g6lyt.pages.dev/339
  • bz8c5g6lyt.pages.dev/488
  • bz8c5g6lyt.pages.dev/540
  • bz8c5g6lyt.pages.dev/54
  • bz8c5g6lyt.pages.dev/371
  • bz8c5g6lyt.pages.dev/497
  • bz8c5g6lyt.pages.dev/1

    • how to build a 2 meter yagi antenna