Fred W4JLE wrote:
It is always present Richard, but only the most anal take the time to pick
it out.

The similarity in appearence requires a very exacting inspection.

This is best carried out by the same people who would worry about the last
.01 dB of gain, removing the last milliwatt of coax radiation, and other
esoteric stuff that means as much as the fly crap.

The ironic thing is that it often requires some knowledge to be able to
tell which effects are fly crap and which are important. I sometimes get
the impression that people who offhandedly dismiss certain effects as
fly crap don't really have the knowledge to judge. Thinking that the
discussion we've been having involves 0.01 dB of gain and milliwatts of
coax radiation indicates a lack of understanding of the possible
magnitudes of the effects we're talking about.

"Fly crap" is also a very relative thing. Most people are perfectly able
to decide what's adequate for their purposes. A person who's 20 over 9
talking to his good buddies, and that's his sole goal, could care less
if his antenna is 10% efficient or radiating mostly straight up. To him,
efficiency and radiation angle are fly crap, and appropriately so.

That doesn't mean it's fly crap to everybody else.

Roy Lewallen, W7EL