I never said anything about base loading. That's where most of the
current is, and therefore the most opportune location to create loss.
There's no current at the end (top), of course, so a loading coil does
no good at all there ... somewhere in between is generally best.
Dave AB7E
On 7/20/2015 2:37 PM, Tony Estep wrote:
On Mon, Jul 20, 2015 at 3:56 PM, David Gilbert <xda...@cis-broadband.com>
wrote:
...properly built coils aren't nearly as bad as you say....
===========
True, but even with a high-Q coil a typical base-loaded antenna inevitably
has low efficiency. This is the consequence of the fact that a loaded
antenna has a very low radiation resistance, which magnifies the impact of
all other system losses. ON4UN's excellent book Low-band DXing has a
detailed analysis that can help you make the best choice of setup.
Tony KT0NY
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