antenna plans

51 links - and 7 categories

35 Element Yagi Antenna for 23cm - Antennas for the 1296 MHz based on the construction plans of some Yagis 35 elements by DL6WU, F9FT, DJ9YW. These antennas features a boom of about 3 m and gives a gain of about 17.8 dBd
[ Hits: 210 | Votes: 1 | Rating: 7 ]

40M Bazooka antenna ^updated - Hombrewing a bazooka antenna for 40 meters band, the article include also with plans for 20m and 160m band.
[ Hits: 4794 | Votes: 44 | Rating: 5.67 ]

70 MHz Yamag Antenna - A Yagi-Mag antenna for the 4 meters band with NEC and MMANA files plans and pictures
[ Hits: 501 | Votes: 1 | Rating: 10 ]

Six Meter Yagi Beam - Article describing how to homebrew a yagi antenna for 50 MHz, includes plans for a four and five elements yagi beam and details how how match impedence with a gamma match
[ Hits: 1039 | Votes: 3 | Rating: 4.33 ]

Reversible RG6 Beverage Antenna - The author describes building a reversible Beverage antenna for low-band receive applications. He details the construction process, challenges faced, and initial performance testing. The antenna uses coaxial cable and transformers for switching direction. Overall, the author is pleased with the results and plans to build additional reversible Beverages.
[ Hits: 21 | Votes: 0 | Rating: 0 ]

RF Choke with Bifilar Windings - This article presents an RF Choke featuring an 11-bifilar turn winding of #14 house wire on a Fair-rite FT240-31 toroid. The choke is enclosed in a 3D-printed case from Thingiverse, though this may pose thermal concerns at higher power levels. With SWR concerns up to 30MHz, the author plans to employ two series chokes at the rig input for improved performance. This choke offers versatility for portable use, with potential mismatch resolution using an antenna tuner. Further testing is anticipated upon the arrival of new cables.
[ Hits: 86 | Votes: 0 | Rating: 0 ]

HB9CV antennas by 9A7PJT - A page by 9A7PJT dedicated to HB9CV yagi antennas includes link to the HB9CV calculator program and some interesting plans
[ Hits: 1112 | Votes: 3 | Rating: 6.67 ]

Yaesu ATAS-120A Portable Tripod: Enhancing Efficiency - In this post by N6CTA, discover the conversion of the Yaesu ATAS-120A screwdriver antenna for portable use. The author details the creation of two sets of radials, 16 and 32 in 16ft lengths, aiming to optimize the efficiency of ground-mounted antennas. Additionally, insights are shared on attaching male quick disconnect blade tabs, with potential plans for a radial plate kit.
[ Hits: 87 | Votes: 0 | Rating: 0 ]

Quadrifilar Helical Antennas - A page dedicated to the Quadrifilar Helical Antennas, with projects, pictures and antenna plans by OH2GVB
[ Hits: 948 | Votes: 7 | Rating: 3.85 ]

RFD Antenna for 2m - Building a Resonant Feed line Dipole for 2 Meters
[ Hits: 797 | Votes: 3 | Rating: 7.67 ]

3 Element Yagi Antennas for 144 MHz SSB-CW - A great and efficient monoband VHF portable antenna. The article consist of two version of a 12.5 Ohm 3 elements yagi beam antenna plans for the two meter band, a full sized and a shortened version expecially designed for the SSB and CW on 144 MHz.
[ Hits: 427 | Votes: 4 | Rating: 8 ]