20 gaussian questions for art
On 27 Jun, 14:24, "Dave" wrote:
"art" wrote in message
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On 27 Jun, 14:02, "Dave" wrote:
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On 26 Jun, 16:36, "Dave" wrote:
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On 26 Jun, 16:09, "Dave" wrote:
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On 26 Jun, 15:17, "Dave" wrote:
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On 26 Jun, 14:21, "Dave" wrote:
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On 25 Jun, 13:10, "Dave" wrote:
Ok, lets try it this way... step by step, inch by inch,
we
may
yet
figure
out what this antenna is.
First question:
What is the least number of wires needed to build a
gaussian
antenna?
Not necessary Dave. Richard is very familiar with the
subject
at
hand
as well as its underpinnings that can be understood by EEs
and is providing a reference that will make all things
clear.
You asked for it and your wish is going to be granted in a
clear
and precise manner that you and the group have requested.
You should now be able to build it yourself with out mumbo
jumbo
from me to confuse you.
No need for me anymore, you now have an expert at your
call.
Don't forget Poyntings input.
Art
whats a 'Richard'??
I want to hear it straight from the source. I have asked
over
and
over
for
you to define the terms and you can't put it into words this
poor
engineer
can understand, so i thought we would try to build an example
from
the
bottom up. but if you can't help with that then maybe the
whole
thing
is
just out of my reach and i should go back to good old yagis
and
phased
arrays.- Hide quoted text -
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Sounds reasonable
if it sounds so reasonable, how many wires does it take?- Hide
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text -
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As many as you want and have fun.
The subject is dead. Let it go
Join the boiling water saga that
is where the action is
Art
no, this is my subject so i'll say when it's dead... i don't want
to
know
how many i can use, i want to know the minimum number necessary.-
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One
ok, thats a start.
assuming i want to operate on 14195khz, how long should the wire be?-
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Whatever wire you have throw it away and get a longer one
ok, random length... can do. now how do i connect it to a piece of
coax?- Hide quoted text -
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O.K. For the last time I will go along until such time
it is obvious you have other intentions.So I start again.
Make a dipole of random shapes and heights that is resonant
at your design frequency. Note the radiator can be any length
as long as it is resonant. For the sake of this discussion
or interrogation let us use a plain half wave dipole.
The feed coax feeds the dipole at it's center in the normal way.
Art KB9MZ......XG
ok, so its a plain half wave dipole, fed with normal coax in the normal way.
so what makes it 'gaussian'?- Hide quoted text -
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Because it's resonant at the desired frequency. This is the
basic form of a Gaussian antenna which is also the starting
point of a Yagi antenna if viewed as a single radiator
Art
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