G4CQM's Amateur (Ham) Radio VHF/UHF Yagi Antenna Projects
May 2016... Very many thanks to all of you who supported me by building and using my designs! You've arrived at the index page to my websites, buttons 1. & 2. below to the projects. Recent page updates: TANT, Balun or not?, Software, and Q-factor & Stability. There are three types of yagi, those with resonance LF of the band being the most common. It is unusual to see true resonance in-band or HF of the band, both of these offer the greatest stability!
Early in 2013 I handed over to Richard Mason G6HKS and also Roger Banks GW4WND of the DXShop ownership and production of PowAbeam Antennas. Please remember it's Richard for kits & parts and Roger for ready made yagis!
EME enthusiasts and DXers take note that my preference is for the UR5EAZ yagi comparison table which exposes myths concerning claims that certain yagi types can receive weaker signals. Vladimir has taken seriously those comments by Owen Duffy, and so looks at system performance. This includes your receiver NF (dB) and bandwidth (Hz) thus revealing the minimum detected signal (dBm) capability. My website hosts both XHTML (static version) and interactive table (.xls). In my opinion this is a big step forward in the right direction!...
Visitors Online: Visitors Today:
|144NX14 built by Roger ZL3RC, excellent homebrew element mounts!...||144NX14 sealed DE built by Roger ZL3RC...|
|Mick G1EZF now using WAXXX10S supplied by Richard G6HKS...||PA0608H 6 ele AOWA 4M (70MHz) yagi used by Bob M1MHZ during UKAC, top yagi! Built by Richard G6HKS...|
|Incredible build of SCQM60UC 1296MHz FLOWA, homebrew by Roger ZL3RC. Outperforms loop yagis!...|
|Excellent homebrew 2 x CQM6UX FLOWA's built by Colin VK4MIL...||The 6CQM6UX 50MHz FLOWA seen at G3TKN, built by Roger Banks GW4WND of The DXShop...|
|Available ready made from Roger Banks GW4WND of The DXShop these professional 1296MHz SCQM24UC FLOWA's...||Roger Banks GW4WND of The DXShop builds 50MHz 6M7N50LY and continues to work some good DX - Oct 3rd... Just completed with ZL2DX on 6m EME at 1 deg MR this end...|
|Peter G3MLO has just completed building this stunning 4 x WAXXX10S AOWA yagi array. First reports of hearing the Angus beacon confirm superior performance under flat band conditions...||Excellent build by Daryl VK4ADM with his own implementation of the now popular CQM12UX FLOWA. His booming signal reported several hundred kilometers distant...|
|An important lesson from VK4MJF: When using Stauff type clamps on 144MHz use additional spacing, raising elements sufficiently high above the boom to avoid the need for correction. Thus ensuring that your yagi is tuned correctly...||An important lesson from VK4MJF: When using Stauff type clamps on 432MHz use additional spacing, raising elements sufficiently high above the boom to avoid the need for correction. Thus ensuring that your yagi is tuned correctly...|
|VK4MJF builds CQM12UX FLOWA (special version) on test before final installation...||Excellent build by VK4MJF, 2 x CQM12UX FLOWA (special version) and 2 x CQM24UC FLOWA (special version), congratulations on a proper job...|
Amateur (Ham) Radio VHF/UHF Yagi Antenna Projects by G4CQM © 2015 Derek Hilleard G4CQM