THE HALF-SIZE 20M YAGI. A full-size ( = ½λ) dipole antenna for the 20 mtr band spans about 10 meters (33 ft). Searching for a half-size half-size 2-element Yagi, I found the design by Gary Hanson (KJ5VW), ref. 4. See ref. 5 and 6 for similar designs.

Find HF Yagi, HEXX Beam and Rotatable Antennas 20 meters HF Beam Antenna Bands and get Free Shipping on Most Orders Over $99 at DX Engineering!

2025年3月7日 · 2-Element parasitic Yagis for the Shortwave-Bands 10-12-15-17-20-30m. The antennas are feeded with the DK7ZB-match. A quarter-wave choke of coax is grounded at the socket. A simple to build Yagi 2 element antenna for 15 or 20 meters band by ... This antenna was designed for the CQ WW CW 2009 at EA8URL All elements are ...

This Yagi should be used with a 1:1 balun for best performance and to help eliminate TVI. One good suggestion is the "Ugly Balun Project" as seen on this site. It works great and is very easy to build from coax and PVC pipe and a few plastic wire ties.

2 Antennas 20M4DX HF Monoband Beam Antennas are full size, 4 element, 20 meter Yagis that leave the competition in the dust! The engineers at M2 Antennas used computer design techniques, and verified with NEC programs and range testing, that their 20M4DX beams have superior gain performance figures to the other 4 element Yagis on the market.

Here is 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.

14 MHz – 14.35 MHz Full Size Heavy Duty Ham Radio Yagi antenna. For 20-meter competitions and DX-ing. High gain, High power, wideband operation antenna, low SWR, excellent F/B. Excellent mechanical properties.

The HexTenna Yagi Beam by Alpha Antenna® is a 2 through 20 meters, legal limit, and full-size portable VHF/HF system for amateur ham radio and continuous coverage from 144-13.950MHz for military operations. Specifications: Power: Full legal limit; RF Connection: SO-239; Frequency: 2 …

1 - "Over the boom" guy set with vertical support included: Due to the weight and size of the 5 element 20m beam, an "over the boom" guy set providing vertical support is now included. The set consists of a reinforced tube (1m long, 50mm in diameter and 5mm wall thickness) to which the 7.5mm non-metallic tensioning cable (CU1) attaches.

M2 Antennas 20M5LD HF Monoband Beam Antennas offer the pure performance of a full size 5 element Yagi for world-class competition and DXing. 20M5LD beams have a clean pattern and great gain across the band, making them one of the best choices on the market, of all long-boom 20 meter monobanders.