RG- 59, and offers noticeably better
resolution on analog video signals.
Therefore, replacing the cable would
be beneficial in any case. If I were you,
I'd replace the coax. I'd pick up a
spare balun too, and if the new coax
does not immediately solve the
problem, replace the balun as well.
You will then want to carefully
seal the connnection between the
coax and the balun transformer. The
best method is to use a product
called "coax seal." This is a rubbery
material that is putty-like. It sticks to
istelf to form a continuous layer of
protection a short time after installation. You'll want to start at the coax
and make sure at least 1/2" of cable is
covered. Proceed with an overlapping
spiral wrap up to the balun, with the
coax seal at least covering the threads
on the connector of the balun, and
preferably overlapping onto the body
of the balun. This offers much better
protection against water than the
rubber boot often provided with
Alternatively, you can tightly rap
the coax and balun with multiple
overlapping layers of black electrical
tape. Start at the coax and wrap at
least an inch of the coax and with
tight overlapping wraps cover all the
way up onto to the body of the balun.
Next do a second layer starting at the
balun and wrapping in the opposite
direction. This layer should begin and
extend further than the first wrap.
Do a third layer using the same
I'd also advise that you arrange
the coax and balun so that water drips
away from them. Typically, this means
making a "drip loop" so that the low
point is a loop of coax. This will serve
to draw water away from the connector and act as an additional preventative measure to prevent your new
coax from being ruined. When arranging your drip loop, do not use wire
ties to hold the cable in place as
ultraviolet light will cause them to fail
after a few years. Better to use speaker wire or something similar (solid
copper wire is perfect for this, but use
insulated wire to prevent eventual
damage to the coax from chafing).
Best of luck. There is nothing like
getting crystal clear free reception by
installing a good antenna system.
Cleveland Hts, OH
[#2063 - February 2006]
I have a 30 mm mechanical watch
that has become magnetized. Will the
Velleman mag/demag work to remove
the magnetism? Also, is the slot large
enough to fit a 30 mm watch?
The Velleman unit is 50x50 outside, so it is not likley to accommodate
a 30 mm watch. However, you can
make your own demagnetizer. Wind
some insulated wire around a peanut
butter jar (or any jar that the watch will
fit in). Connect a 100 watt lamp in
series with the coil of wire. Tape all
connections so you don't get shocked.
Plug into 120 VAC, put the watch in the
jar, and slowly remove it to three or
four feet before unplugging the power.
If all the magnetism is not removed,
you need more turns, but I think 20
turns would be sufficient.
March 2006 103