Now, between questions and opinions, there has to be something in
this one for everyone :)
I've just about finalized my ideas for the two wire antennas I will put
up hopefully before the end of the year (unless the rainy season comes
early). Before I start scrounging up materials and lining up help for the
TV mast party, I thought I'd briefly describe what I want to do and
solicit your comments and opinions. I have a specific question or two
about one of the antennas that involves a choice in placement, so
hopefully I can get a good answer or two on that.
The first one, whose configuration is pretty much set, is a tilted
delta loop of about 350 feet of 12 AWG in roughly an equilateral
shape with the point up. It will be fed from a lower corner with
open wire line to a air core ***balun, then into the shack
through an SPC type of transmatch. The apex will be about 65-70 feet high
with the base between 10 and 15 feet above the ground. It will be
oriented broadside N/S. Its support by the way is a 50 foot TV mast on
the roof, with non-metallic guys except on the lowest ring. I had
excellent results with a very similar antenna about 2/3'rds this size, but
with the base even lower...about 6-8 feel in that case..so I'm hopeful
about his one. I would enjoy any and all comments, suggestions and
discussion on this one
The second one has a choice to be made before I finalize its
configuration. In any case, it will be a simple dipole, 12 AWG,
center fed with open wire line through a coaxial ***balun to the
shack and an SPC design transmatch. It will also be oriented
broadside N/S (no real choice on either orientation).
Option A has a length of about 100 feet and both ends at about 50
feet above the ground, i.e. essentially a level flat top.
Option B has a length of between 125 and 130 feet, one end at the
same 50 feet, but the eastern end will be about 15' above the
ground..i.e. a sloper.
I'd be particularly interested in how the two options might compare on
the lower bands (80/40). On one hand I can have the height for the whole
length, but only 100 feet long, the other has more length but a lot closer to
the ground on one end. Comments?
Thanks for your time. Please feel free to email direct.