Try changing the length of your coax since you are close to a half wave on 40M.
Also, its a good idea to use a choke on both the ant and shack ends of the coax
so it does not try to act as part of the radial system. By choke, I mean 12
turns (or so) on std black drain hose (about 5 in in dia) or other suitable
form. I am sure you will get lots of other advice, but feedline length is an
obvious (and simple to fix) one.
Good luck. - Alan K9MBQ
-----Original Message-----
>From: Kelley <kshaddrick@jetup.net>
>Sent: Jan 20, 2010 6:47 PM
>To: towertalk@contesting.com
>Subject: [TowerTalk] Hustler 5BTV Problem
>
>I've been working with a 5BTV antenna for about two weeks now. I've got
>good SWR readings on 10m, 15m and 80m. Higher but usable readings on
>20m. However, I can't get anything under 2.0:1 on 40m. The antenna is
>ground mounted with 20 25' radials. It's fed with about 60' of coax.
>
>I've tried the normal tuning as well as adjusting the traps. Nothing
>seems to bring the SWR on 40m down to something usable.
>
>Anyone have any ideas I can try?
>
>Kelley - W0RK
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