Tobuild this antenna you need a lot that is at least 100 feet across. Antenna covers all bands 80-10 meters + 30, 17, 12 meter WARC Bands This antenna works as a Full Wave Loop on 80 Meters and also works as a 2 wavelength open loop or Bi-Square on the 40 Meter band. 80m 2 element Yagi antenna. Herewe take a look at building a short, loaded dipole for 20 Meters, 14 MHz.In fact, this is going to be half of a 2 element yagi for the 20M band.L/C Meter Wealready published in the 9 J-pole-antenna-projects some samples of copper J-Pole antennas. Here a collection of links to make you own dual band VHF UHF copper cactus antenna. The Copper Cactus J pole antenna design is a simple amateur radio antenna model that will allow you to operate both bands with good performance, it is easy to make and the web offer several projects and examples we Thanksto Andy (GW0JXM) for this fairly simple 2-element 20 meter beam that is bidirectional broadside to the elements. You may work both long and short path with out major adjustments to the antenna. "In this video I show you a lightweight two element mono band beam for use on the 20 metre band. Click on the "show more' box below for full details. Prepareand install all elements except the driver. Before you cut the driver element, add a couple 3" to the overall length of the element. Now find, mark and cut the element in half. I then flattened about an inch of the element, and drilled a hole to accept the lugs of the coax. Ifyou need a lightweight, yet sturdy yagi antenna for 2 meter operations, then this project from Kevin Loughin (KB9RLW) is for you. 6 antennas for 6 meters; Build an HF long wire balloon antenna; Building a Delta Loop Antenna for 6m FM; My durable and portable 2 meter yagi; Notesabout the Yagi antenna calculator. * Boom length: BL The boom length should be more than is calculated as this distance is measured from the center of the reflector to the center of the last director. It stands to reason that more length is needed to mount these elements to the boom and you might want an area behind the reflector to mount TheYagi, one of the most popular directional antennas. Gain is the motivation to build the Yagi antenna. Long and slider is the look as the number of elements and boom length the biggest factor in gain. Just a three elements are required; Reflector, Drive Element (dipole or loop) and a Director gives about 5 dB gain. Thepicture below programs the products you will certainly need to develop a 2 meter 1/4 wave vertical antenna for the 146 mHz. amateur radio band. Below is the checklist of components required to construct a 2 meter vertical antenna: 3/4 ″ PVC pipe-- Length to suit. 3/4 ″ adapter 8xMPT. 3/4 ″ THD Dome Cap. 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. lNvLn.