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.

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High performance tuning dimensions for "Full band Phone" or "CW/Low-Phone" band segments are fully detailed in their assembly manual. 20M4DX beams are low impedance feedpoint design Yagis for optimized performance. Their low-loss hairpin match and M2 Antennas' 5 kW 1:1 balun ensure that all of your power gets onto the airwaves!

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.

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.

This 6 element 20m Yagi gives you tremendous performance with a very high gain on a 42ft boom. The antenna has been optimized for good F/R and SWR performance across the band. The antenna comes with our high quality, heavy duty materials and hardware.

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.

This yagi antenna is particularly suitable for those with small plots ( myself included ) who wish to use a 2 element 20m yagi. The design is by AB4GX, the original article is listed below ( PDF ). Here different materials have been used for construction as these are easy to obtain here in the UK other than this the design is essentially the same.