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Old May 5th 09, 08:22 PM posted to rec.radio.amateur.antenna
dave dave is offline
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First recorded activity by RadioBanter: Jan 2009
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Default Station With Center-Fed Dipole - Best Grounding Technique?

Jim Lux wrote:
Howard Lester wrote:
"dave" wrote

A BalUn would help a lot.


For what? If the antenna system is balanced (as are dipoles,
inherently), I seriously doubt a balun would be good for anything.


Most every practical dipole installation has some imbalance in the
installation (the trees are closer to one side than the other, etc.).. a
choke to prevent RF current from flowing on the outside of the feedline
will at least make the pattern more consistent with expectations. Might
make the tuning less "twitchy" too (because you've decoupled the effect
of things near the feedline).

Certainly, a choke at the entrance to the shack is a great way to keep
RF outside.


A choke wastes power.