An idea just occurred to me. Since you (RHF) are the main one I am talking
with on this subject at this point, and since I did join the Yahoo!
Shortwave Antenna group, I am going to try (that is, do my best) to move
this over to that group. All posts from this point on, at least on this
particular thread, will be made there. This text will be posted there in a
few minutes, alongwith a couple more questions and clarifications.

Thanks for introducing me to that group, which I am trying to get more
into, and thanks for your help so far.

Dave


"RHF" wrote in message
om...
= = = "Dave" wrote in message
= = = ...
Argh. I just posted an empty message. Sorry. Please ignore.

Thanks for the info. I picked up a 300/75 ohm mini-plug adapter at the
store, but failed to get the second 75/300 ohm matching transformer to
go
between it and the coax. Tomorrow.

Question: I have an odd situation, and can either install a 1/4 wave
dipole
or a half-wave "random" wire loop (I think).

A "Random" Wire Antenna is simply that = Any Length that FITS
the Space that is Available to put up and Antenna.

For these general types of Low Noise Antennas. The Inverted "L"
{Shaped} Antenna lends itself to the design the best.

Run the Horizontal Arm for as long as you can at your roof line.

Run the Vertial Leg down to your Ground Rod Location.

Make your 'primary' Grounding Point "Connection".

Run your Coax Cable from the Grounding Point to your Radio.
.
.
Right now the grounding rod is immediately below where the
dipole would go, and I think I could drop the 300 ohm twin-lead
down to it where I would ground one side (I think I have
this right, please correct me if I am wrong).

Initially do NOT Ground the 300 Ohm Twin Lead.
[ This is the Antenna Side of the Matching Transformer. ]
The Near-End of the 300 Ohm Twin Lead is connected across the
300 Ohm-Side of the Matching Transformer; and the other Far-End
of the 300 Ohm Twin Lead Wires are Connected (Joined) Together.
This forms a Long Shinny Loop Antenna Element.

FWIW: This is a very 'quiet' Antenna (almost sounds dead)
until you get spot on the frequency and then the signal is there.
.
.
At that same point I would ground the shield of the coax,
and hook the other side of the dipole to the coax center conductor.
Coax would travel 10 feet or so to my window and the radio.

First simply try Grounding the Outer-Shield of the Coax Cable ONLY.
.
.
Other option involves moving the grounding rod

IF - You move the Ground Rod. Place it so you can have an
Inverted "L" Antenna with the longest Horizontal Arm 'possible'.
(30 60-90 120 Feet)

iane ~ RHF
.
.
and doing something similar with the twin-lead as a long loop,
grounding one side of that and coax from the other side of the window.
Assuming these are workable ideas,
which do you think would work best? Again, [please don't hesitate to
tell
me if I am full of crap. RF is new to me.

I really do appreciate your help. Like I said before, RF is totally new
to
me.

Thanks,

Dave