On Jan 11, 12:22*pm, "Dave" wrote:
"Art Unwin" wrote in message

...

Nope
You have the solution in your own hands where you have total control
if you are able to use a antenna computer program.Many on this group
have an aversion to computers and thus rely on other means which puts
control
in book authors. *If you have a similar aversion thats O.K.

yeah, right... i am an author, and i also use computers, where does that put
me? *EVERYONE on this group must use a computer... kind of hard to use
newsgroups like this without a computer.

For those who can use a computer they can determine for themselves if
antenna programs can be trusted or not.

no they can't... not unless they have a sophisticated test setup to do fill
size models and measurements to compare predicted with actual results. *YOU
don't even have that art, so how can you be so sure that the programs are
doing what you think they are doing?

Very good. But Richard Harrison does not have a computer thus he
relies on books.
I'd venture to say that many have books as well as computers but have
not used the canned antenna programs. After all cobol, basic, extra
basic, fortran e.t.c are outside of their sphere!
With that aside your answer questions the veracity of antenna computer
programs
in the hands of the average ham. That may or may not be true
But the members of this group percieve themselves as experts with
respect to antennas and I have no doubt that all will arrive at the
correct answer individually and that includes yourself
As for being sure of the result obtained no one can arrive at the
correctness unless they themselves revert to first principles to
determine the confines of what is acceptable.
On the other hand one can rely on the fact that the approximations
provided by computers aligns with your own experiences. Either way to
find the solution is totally in your hands, your own choice
in how to determine the veracity of antenna computer programs without
placing trust in unknowing
hands.
Is that clear and technical enough for you or has your descision on
antenna programs already been made and irreversable?
Art