[Antennas] more questions
David J Windisch
davidw at copper.net
Thu Jan 27 06:06:35 EST 2005
For crying out loud ...
Say a prayer for Lou Varney and all the other illustrious SKs. Then ...
Get " what ever version G5RV " out of your head. Imo, it's been
bastardized into a buzzword to trap the unwary into buying frenzies.
Think " random dipole ", " random open wire feedline ( " owl " ) ", and "
good balanced tuner ". You can adjust feedline length to get the skyhook
you put up to tune with the tuner you have.
You can run an owl feedline without a balanced tuner or a balun, but the
results are unpredictable. Pretend it's the best you can do with what you
have at the time and ignore the flames sure to follow from that remark.
Put up a wire as long as you can or want, cut it in the middle, attach the
feedline and rig, adjust as necessary, and CU on 40M c-w.
73, Dave, N3HE
----- Original Message -----
From: "RB" <rbig at bellsouth.net>
To: <antennas at mailman.qth.net>
Sent: Wednesday, January 26, 2005 11:42 PM
Subject: [Antennas] more questions
Is it still a G5RV if I run more ladderline to it?
I can't run all ladderline because I don't have a balanced tuner, so have to
go through a balun.
What I was running previously was a 170' dipole with ladderline feed from
outside my shack. I ran approx 8' of coax out to a 4:1 balun, and
ladderline from there.
During Hurricane Ivan, one of my dipole supports (big, tall tree) blew down.
Now, I have a reduced horizontal span of approx 105'. But, will still have
to run coax out the shack window to the balun.
Should I add some downdrops on each end to help loading? 15' of downward
ends would give me an effective 132'.
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