If you've ever had the desire to enter the Ham Radio market with a product that has been proven superior in performance to all competing products, now is your chance.

Due to advancing age (70) and a physical limitation, it has become too difficult to continue manufacturing these amazing antennas. As a result, I have decided to offer for sale, my Patent No. 5,841,406 entitled "CRITICALLY COUPLED BI-PERIODIC DRIVER ANTENNA", and the RAIBEAM^® registered trademark. Included is a complete package of engineering and production data, plus software that includes assembly manual print files, a detailed Cost of Materials & Labor spreadsheet, and an inventory database. Also included is this website and domain name which receives over 30,000 visits per month... all for a reasonable price.

Now is the time to take advantage of the opportunities being offered in the Economic Stimulus Package. 

Serious enquiries only. Contact: wa7rai at cox dot net.

To demonstrate the superiority of dual critically-coupled driven elements, I invite you to model a 7 element classical yagi design, and achieve equal or better results than what is illustrated in the plot below* 

7 element 6m Raibeam^®: free-space gain and pattern

EZNEC 3D average gain: 0.999 = 0.00 dB 

The file for the above plot can be made available for inspection.

©2009 RAI Enterprises & WA7RAI - All rights reserved.   ●   Page last modified 3/12/2009