Free Yagi Antenna Designs for Ham Radio

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21Mhz OWA Yagi Antennas

28Mhz OWA Yagi Antennas

50Mhz OWA Yagi Antennas

70Mhz OWA Yagi Antennas

144Mhz OWA Yagi Antennas

430Mhz OWA Yagi Antennas

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Latest Antennas

'Ham Work Shop' to be fronted by G0KSC

The editors of antenneX, the popular on-line Ham antenna magazine have asked G0KSC to front the Ham Work Shop section each month. Many projects and basic levels of theory are going to be discussed and explored with useful information being shared each month for the beginner through to extra class. In this months column the OWL by G0KSC will be explored in more detail with explanations into why this is the best split-dipole Yagi available today.

A 9el 2M OWL Yagi designed for SP3IYM

The Tant program shows us this antenna has better Sky temperature and G/T than anything else of this length (4.9M) available today, period.

Future column articles will include design and construction projects from HF to SUHF all built from easy-to-obtain parts requiring a limited tool shed. Antenna modeling, antenna modeling packages and a description of how to use the Tant program (which will help you determine the sky temperature figures of an antenna) will all be included in future issues.

antenneX has over 120,000 subscribers and was born out of the antenna files and recordings of the late L. B. Cebik, W4RNL (SK). If you would like to enjoy this and the many other interesting and useful articles that appear in antenneX each month, subscribe now at http://www.antennex.com

First OWL Yagi flys over ZL

Written by G0KSC
Sunday, 07 February 2010 00:00
The First confirmed OWL Yagi in ZL was confirmed by ZL1RS today. The 8 element 9.8 metre long 50MHz version with 13.27dBi gain was built and tested by Bob this weekend. The antenna (pictured below) required some small insulaotr correction due to the thru-element-and-boom insulators (see An 'intro to the OWL Yagi' and 'PLEASE READ!!' sections of this site for more information on insulator correction) but presents a wide, flat SWR curve uncharacteristic of a Yagi of only 12.5Ohm impedance. The 8el 50MHz OWL at ZL1RS More OWL Yagis in both 28Ohm and 12.5Ohm versions are being added daily. Low impedance antennas modeled how they should be! Additionally, this weekend saw the installation of 2 10el Plus2 2M LFA yagis at ZS6JON. John installed his 2 new Yagis and said 'Initial tests are good' with both antennas showing a completley flat 1.1:1 SWR across the whole 2M band. The 2 10el Plus2 3 reflector 2M Yagis at ZS6JON Rob VK2GOM finished his 3el 6M LFA yagi this weekend too and reported 'Perfect SWR' from his high gain compact Yagi. All of the above antennas are listed upon this site for free and can be built by anyone. Why not give it a shot yourself this year, there is nothing more satifying than building an antenna from scratch! The VK2GOM 3el 6M LFA And Finally, G0KSC completed his own 10el Plus2 LFA Yagi and got it in the air. Good results have been seen with excellent (as predicted) F/B ratio and excellent super flat SWR from 144 to 146MHz. Why not pick out your easy-to-build G0KSC Yagi for your next spring time project! Justin G0KSC
Last Updated on Wednesday, 10 February 2010 00:12