"Mount the antenna as high and in the clear as possible." - R5 manual: http://www.cushcraft.com/Installation-Manuals.asp
-Matt W0XEU >>> "Ron Foster" <[EMAIL PROTECTED]> 11/14/2007 12:17 PM >>> I used to have one. Going from memory I believe Cushcraft recommended something like six to eight feet above the ground. Ron - W2RIP Bob Nielsen <[EMAIL PROTECTED]> wrote: On Nov 14, 2007, at 7:56 AM, Norm Klieman wrote: > Hi - Does any one know if a Cushcraft R5 vertical can > be grounded mounted and how high off the ground would > it need to be. I've only used mine in the past mounted > on the roof but at the current QTH I won't be able to > get it up there until the spring. 73's Norm K9NK I haven't run any analysis, but think that the counterpoise rods should be isolated above the ground a bit. K7LXC and N0AX did comparison testing of several verticals and presented the results at the Dayton Hamvention in 2000 (copies of the report are available from . One of the models they tested was the R8, which is built in a similar manner to the R5. I recall they had the base mounted about 7 feet above a ground screen. The results were (in my opinion) better overall than for the other types they tested. I have a similar Hy- Gain AV640 mounted on a pipe at 13 feet and am quite satisfied with the performance of that installation. 73, Bob N7XY _______________________________________________ Elecraft mailing list Post to: [email protected] You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com _______________________________________________ Elecraft mailing list Post to: [email protected] You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com _______________________________________________ Elecraft mailing list Post to: [email protected] You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
