Thank you. I'll check these out later on today.

Dave


"RHF" wrote in message
om...
DAVE,

An OutSide Ground for Better Safety and more . . .
http://groups.yahoo.com/group/Shortw...na/message/206

The "Grounding-Point" = Ground Rods and Ground Wires ETC.
http://groups.yahoo.com/group/Shortw...na/message/425

The "Primary" Antenna Grounding Point
and the 'secondary' Shack Grounding Point
http://groups.yahoo.com/group/Shortw...na/message/503

TBL: Build your Antenna and Radio System from... the Ground Up )

iane ~ RHF
.
.
= = = "Dave" wrote in message
= = = ...
Hey starman,

I am still trying to digest the material on the website you listed. I
even
found another website that referrences this one, and has pictures. I am
still not clear on the purpose of the 30turn/10turn matching transformer
inside the shielded box. What does this accomplish that a 300/75 ohm
matching transformer between 300 ohm twinlead and 75 ohnm coax would
not?
Also I am planning on grounding the shield of the coax to a grounding
stake
at the "base" of the antenna, as soon as the coax comes near enough to
the
ground to do this. How can I do better than that, for a ground?

I do appreciate your patience.
"starman" wrote in message
...
Jim Williams wrote:

If I run a wire out the window to a tree near the house, do I also
need to run a ground wire to the ground outside?

Does an outside wire perform better if it's grounded or is it a
safety
precaution (or both)?

It's mainly a safety issue, since you can't make a good RF signal
ground
for the type of antenna you're considering (random wire or
inverted-L),
*unless* you use the technique on the following website:

http://www.anarc.org/naswa/badx/ante...e_antenna.html

An RF signal ground needs to be short. Several feet of ground wire is
too much. That's why the grounding method on the website (above) works
so well. The ground wire to the rod is very short. Mine is about
12-inches.

Even if you're not interested in reducing noise with a good RF ground,
it's still a good idea to have some kind of ground for lightning or
just
static electricity. I suggest you install a ground rod near the
location
where the antenna wire comes inside the house. Connect a lightning
arrestor between the antenna lead wire and the rod. Better yet, build
the antenna design on the website above. This method helps to reduce
noise from domestic appliances such as televisions and computers.


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