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Date: | Thu, 16 Jul 2009 13:08:16 -0400 |
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Great Rick,
I'm near Philly, maybe we can chat on 40 or 75 some time when you get the
antennas set up. Grab a TW-1 if at all possible. It is a big help in
tuning the amp with the power tone feature, and also for tuning antennas
with the swr tone feature.
I don't know if you have any sort of accessible swr meter, but if not, how
do you know that your R7 is set up and tuned right? Even if someone
helped you set it up in the first place with a analyzer or other gear,
things can change over time.
I don't want to beat a dead horse on the vertical, but are you not hearing
stations? Or are they not hearing you?
Since you have a tower, perhaps a small used beam for the higher bands up
there and or a rotatable dipole to cover some of the bands of interest.
Since you can't use the tower for center support of a dipole because of the
power lines, maybe use the tower to support one end and put a mast to
hold up the other.
Or use a sloper from the top of the tower in a direction away from the ac
lines. Alpha Delta makes some of these, but it will require a ground
wire from the feed point down to a ground. I think for this to work
properly yu would need a real HF yagi or something on top of the tower.
Not sure if the vhf stuff you have on the tower is sufficient.
Richard had a good idea earlier. If you can get a local ham to stop by and
give a quick look, there may well be an easy solution to the problem that
isn't obvious to you.
Also remember that a dipole doesn't have to be totally horizontal or in a
inverted vee. It can slope, it can bend, the ends can droop, etc. You
can put one end near the top of the tower and let the whole thing slope
downward to a 10 or 15 foot mast some distance away. You can even pick up
another 15 or 20 feet of antenna length by letting some of the wire hang
down from the top of the tower. Just keep it a few feet away from the
tower.
73, good luck, Steve KW3A
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