On 9/4/2013 6:48 PM, Tom Osborne wrote:
Easier to just put it up in its final place and check it.
Not only that, it's the only method that works. :)
It should be obvious from this discussion that you want to use some sort
of hanging method that lets you raise and lower it. That can be anything
from pulleys to ropes over tree branches.
Also, how high it needs to be depends on the frequency. A good rule of
thumb is to try to get it at least a quarter wave high to tune it.
Another thing to remember -- raising a dipole will nearly always move
the resonant frequency UP.
73, Jim K9YC
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