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10m dipole and tuner
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September 24th 03, 06:57 AM
Bob Miller
Posts: n/a
On 23 Sep 2003 13:59:49 GMT,
ojunk (G. Doughty)
wrote:
I have a 10m dipole in the attic connected to my ic718. Is it possible to tune
it to 20m using the mfj 901b that I have? Does the dipole need to be 20m
length and then tuned down
Yes. Make the dipole twice as long, and then, with your tuner, you'll
be able to get a good swr from 20 meters through 10.
Bob
K5qwg
or can tuners tune to a resonance higher than that
of the existing dipole.
Cebik says a dipole needs to be at least 3/8 wavelength long on its
lowest frequency. I find 1/2 wavelength works a lot better.
I do not have a balun on it. On 10m I have an SWR of
1:1
Thanks
73
G. Doughty
KI4BBL
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