I made one for 460MHz as shown in the first link below. All my radials are as shown in the first link. It works pretty good.
Then I ran across the multi band ground plane at the second link below.
I am looking to make a 460/800, dual band ground plane. I really dont have the space or need for the 150MHz band. I do have a few 800MHz systems.
I made a 3 1/4 element as shown in the multi band directions. My issue is I do not have the 19'' vertical element, as shown in the multi band. I have a 6'' element.
My question is, how far up the 6'' vertical do I attach the 3 1/4 element if this can even be done?
460 band
Ground Plane photo - Dick Harris photos at pbase.com
multi band
http://www.qsl.net/n4yek/scanner/antenna.pdf
Then I ran across the multi band ground plane at the second link below.
I am looking to make a 460/800, dual band ground plane. I really dont have the space or need for the 150MHz band. I do have a few 800MHz systems.
I made a 3 1/4 element as shown in the multi band directions. My issue is I do not have the 19'' vertical element, as shown in the multi band. I have a 6'' element.
My question is, how far up the 6'' vertical do I attach the 3 1/4 element if this can even be done?
460 band
Ground Plane photo - Dick Harris photos at pbase.com
multi band
http://www.qsl.net/n4yek/scanner/antenna.pdf