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Old November 28th 03, 12:22 AM
Roger Halstead
 
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On Sat, 22 Nov 2003 18:27:04 GMT, "Dee D. Flint"
wrote:


"Stinger" wrote in message
...
Homeowners associations are a good thing! They are basically an agreement
that you and your neighbors will follow some clearly defined rules for the
specific purpose of maintining optimum property values for everyone. In
other words, you won't have to worry about buying an expensive house and
having your next-door neighbor decide to use his yard to store a dozen
wrecked automobiles while he builds a hot-rod or runs a car-repair

business.
Common sense should tell anyone that their rights end when they start to
infringe on anyone else's, but sometimes you need it in writing. ;^)


Don't need a homeowner's association to prevent those kinds of violations.
Cities have ordinances against them. If someone violates the ordinance you
can file a complaint.

Receiving antennas are easily concealed. If you can find mine from the
street, you were born on Krypton. I think this is an overly-hyped

problem.


And as Dee says, these are the kinds of installations that are more
likely to cause interference.


Broadcasting antennas are another animal, though. For instance, nobody
wants to live next to some clown running a bunch of linear amps through a

CB
"base station." It will literally be "seen" on well-shielded cable
television connections, and is a nuisance. I think that's a lot of what


That is a fault of the cable or someone using the cable even if the
amps are illegal and covered by some rather strict laws.
..
All it takes is one poorly shielded device hooked to the cable near a
transmitter. The device can create harmonics and mixing products that
will wipe out a channel, or even the entier service to an area. A
good example would be an attic antenna next door to some one who
hooked their rabbit ears to their TV set with the cable still
connected. The lower antenna is closer to the set and more likely
to cause interference. It is also more likely to couple RF into the
house electrical wiring causing all sorts of problems due to RF in
radios, TVs, stereos, CD players and computers.

I once took out an entier city's cable system with a 2-meter HT as a
demonstration. (a very brief demonstration at the cable office).
Two days later you couldn't find a leak in the system any where in
town.
the
"external antenna" rules are meant to curb.

-- Stinger


Again such CB operation is illegal and they can be just as big or bigger a
nuisance with a mobile operation. Some of these guys have multikilowatt
amps in their vehicles.

Such association rules force the LEGALLY LICENSED operator to use low height
indoor and hidden antennas. Theses types of antennas are far more prone to
generate interference than something well up on a tower.


And it exposes the user to RF fields far greater than normal.
There is a reason I have my 2-meter antennas at 130 feet. Even there
I am limited to 380 watts into the antennas due to exposure limits.
At 30 feet I'd not even be able to stay with in limits using my 50
watt mobile on those antennas. Considering there is 228 feet of coax
from the rig to the antennas I could probably run a KW output and not
exceed the limits.

Actually...when it comes to exposure limits: My TH-5 is at 100 feet.
With 1500 watts into the antenna the RF limits for controlled access
are 6 feet above the ground at the base of the tower. I guess I
should paint a red strip around the tower at 6 feet. As that is slant
distance the height goes up rapidly as you move away from the base of
the tower

You'll have to fix the return add due to dumb virus checkers, not spam
Roger Halstead (K8RI & ARRL life member)
(N833R, S# CD-2 Worlds oldest Debonair?)
www.rogerhalstead.com.



Dee D. Flint, N8UZE