[South Florida DX Association] Wire antenna advice
Warren Rothberg
w4wr at bellsouth.net
Wed May 14 14:56:02 EDT 2008
Good afternoon, Mr. Phelps. Your mission (oops, wrong forum). Seriously, =
the
diagram below depicts the "end" of my condo unit (looking down from the =
sky)
or the antenna configuration since the wire will run parallel to my unit
walls.
|
|
| External -> Radio |
22 feet | Tuner |
22 feet
| |
|
------|--------------------------------
| 42 feet
^
|
Entry through 11 feet above
Window with ground on all
MFJ Pass-thru; three sides -
Accepts either total length =20
Ladder or Coax; avail: ~86 ft.
Locate feedpoint
here.
Distance from feedpoint to Radio=3D
25 feet
I was thinking in terms of an OCF (off center fed) wire (don't have =
enough
length to call it a Windom <g>). Height above ground is 11 feet on all 3
sides (my roof doesn't go any higher!). The outside walls are stucco on =
a
metal frame (16" joists). The antenna will mount about 6" down from the =
top
of the "side wall" and out about 12" on a standoff. I can feed it with
ladder line and a 4:1 balun (but the run is very short) or coax with a =
1:1
balun. This is all theoretical (read only in my head). Does anyone have =
any
experience with this type of installation? Will the take off angle be =
near
vertical (NVIS)? The feedpoint side faces east with a north leg and a =
south
leg.
Thanks for any thoughts and/or suggestions.
-warren
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5/14/2008
7:49 AM
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