Flag-pole antennas are never much more higher than 250 feet, often less. If mounted on the side of a large HILL with a HAAT up to 600feet, downtilt in the pattern will not help you. If you get one that has a HAAT over 1000feet then 3-5degrees of downtilt is beneficial on 440Mhz. There are DB Products antennas that are available with factory supplied downtilt call or check the catalog (read that as NO Ham Manufactured antennas (other than commercial manufacturers have it on special order). Downtilt is accomplished by special spacing of the dipoles on the mast.
Steve W4CNG PHD., The Repeater Engineering Co. --- In [email protected], [EMAIL PROTECTED] wrote: > Hello All, > We install many of the flag pole antenna supports as > well as the pine tree supports here at work. You will be fine with > your 440 Ham band antenna. But watch your gain. > In DBd do not go any higher then 8 DBd. Plus no down tilt. > Have fun! > Dean Westbrook, EE,PE. Yahoo! Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ <*> To unsubscribe from this group, send an email to: [EMAIL PROTECTED] <*> Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
