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Message-ID: <478581.40879.qm@web63607.mail.re1.yahoo.com>
Date: Tue, 20 Jul 2010 19:52:34 -0700 (PDT)
From: Andy - KU4XR <ku4xr@yahoo.com>
To: 600 meter group <SHMRG@piobaire.mines.uidaho.edu>, lowfer@mailman.qth.net,
  rsgb_lf_group@blacksheep.org
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Subject: LF: Best way to connect feedline - advice appreciated
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Hello all:

I will soon be finishing my re-construction of my lowFER antenna
to be used at 185 KHz. I will be using a different top hat design
from my previous antenna. I am not sure what would be the best way
to connect the feedline to the top hat, and down to the transmitter.
Photos of the new top hat are at: =20

http://ku4xr.webs.com/apps/photos/album?albumid=3D9558802

There are 24 horizontal wires, and 8 diagonal wires ( tensioners )=20
so 32 wires total in the top hat. The cross arms are 10 feet ( 3.3 m )
in length, and are grey electrical PVC ( UV resistant ).The vertical
pipe for the tensioning wires is 3 feet ( 1 m ).=20
The mast will be grey PVC, and a wooden " A " frame mounted against=20
the side of my aluminum sided mobile home,
(I know !! Not Good, but the best I can do)...
The loading coil ( Variometer ) is just inside the window at the=20
operating position...... Possibilities :::
#1 : A single wire, straight down the mast.
#2 : A single wire offset by about 1 foot, or more ?? to help
lessen the coupling effect.
#3 : Maybe a 2 wire downlead, spaced a given distance apart, and
offset from the mast also at a given distance, then tied together
for a single wire coming into the window at the loading coil.

Any ideas will be appreciated. This antenna will no longer be a=20
" one man job " it is going to be heavy, and will have to be guyed.
So, once my help is gone, I won't be able to raise, and lower this
antenna by myself like my previous one, so I need to do everything
the best possible while it is on the ground, and hope for the best
when it goes up in the air.=20
The top hat will be at 36 feet ( 12 m ) AGL, and the APEX will be
at 39 feet ( 13 m ) AGL.

Again, thank you for any suggestions, I'll consider all of them, and
then do the best I can do with the recomendations. Thank you for your
time, and 73 to all :


Andy - KU4XR - EM75xr - Friendsville, TN. USA
LOWfer Beacon " XR " @ 185.29875 KHz ( QRSS-60 )

*** Temporarily OFF, while constructing a new antenna ***

Coordinates:  N:  35=BA 43' 54" - W:  84=BA 3' 16"
http://www.myspace.com/beaconxr