Try this link for ideas. http://www.cushcraft.com/support/pdf/a27010s.pdf

Phil, KB2HQ

"Richard Harrison" wrote in message
...
Mike M wrote:
"L.B. Cebik has an article on a dual band quad. He uses slement
placement to reduce interaction between the 2m and 70cm elements."

Sure. Mount the elements for one band at right angles to those for the
second band.

Best regards, Richard Harrison, KB5WZI