2Element 30 meter Yagi Antenna - Dimensions and EZNEC plots for a 2 Element 30 meter Yagi antenna with 28 Ohm featuring 4.3 dBd Gain and a 16dB F/B with a good It is approximately 100 feet long, can handle the legal limit, and is easy and inexpensive to build. It is similar to a G5RV but a much better performer especially on 20 meters.
Step1 Cut three pieces of PVC tubing. One piece will be 11 1/4 inches long and the second will be 6 7/8 inches long. These pieces will make up the support boom for the antenna. The third piece can be any length, it will be the handle for the antenna, so give yourself about a foot or foot and a half. Whatever is comfortable.
Ihad used cubical quads for many years and the decision for 20 meters and up was easy, but what to do For 40 Meters? Some years ago I built a MOXON Rectangle antenna for 6 meters. The performance was excellent with good gain, great side and back rejection and seemed to work very well. Cost to build was very low and Construction was very easy. Thanksfor the information, I will definately check it out. - Delta1X. May 22, 2014 at 0:55. Add a comment. 1. The spacing of of the driven element from the reflector of a Yagi antenna is. 0.19 â‹… wavelength 0.19 â‹… wavelength. then, the spacing of the driven element from the director element is. 0.17 â‹… wavelength 0.17 â‹… wavelength. DIY5$ Portable VHF Yagi Antenna for the 2 Meter Band (144-146 MHz) by F4HWK Step 1: Materials and Tools. All you need for this antenna are 3 pcs of 4 mm diameter threaded rods, a PVC bar with a Step 2: Dimensions. All dimensions are given in mm on the first figure. The antenna is a Yagi type FellowYouTuber, 2E0UKH told me about a 2 element dual-band 2m/70cm beam antenna he built. I ran with the idea and made my own, out of arrow shafts, with an PORTABLEVHF YAGI MOUNTING: Below is a photo of my portable 7 element Yagi for 2 meter field operations, mounted on a DIY mast bolted to the truck . Although not a "field expedient" antenna per-se, it can be mounted and aimed in the field in many expedient ways. The Jungle Antenna is easier to build than to describe, but here goes: It

\begingroup$ Interesting. So there must be an effect, but a fairly slight one. By the way, if you're planning on actually building an antenna according to a 4nec2 model then you'll want to initially make the elements a few percent longer than the model specifies, and then trim to get the impedance you're looking for, usually resonance or low SWR.

Circularpolarization on 2 meters: A 2-meter "Ring-Stub" style antenna. This design has been used by FM broadcasters for over 40 years. There are a number of reasons why amateurs might want to experiment with c-pol transmissions on 2-meters. Satellite communications typically involve a VHF uplink in the 2 meter band, and the azimuth ZgjzQ.
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    • how to build a 2 meter yagi antenna