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Old March 21st 05, 11:09 AM
 
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Default Question on noise

My QTH is a bit noisy at times, around S7 most days, with the exception
of rainy, damp or snowy days!

The question is... anytime there is any kind of dampness the noise goes
away, any ideas why?

Gil


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Old March 21st 05, 07:31 PM
JRS
 
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On Mon, 21 Mar 2005 12:21:46 -0500, nitespark
wrote:



wrote:
My QTH is a bit noisy at times, around S7 most days, with the exception
of rainy, damp or snowy days!

The question is... anytime there is any kind of dampness the noise goes
away, any ideas why?

Gil

You probably have some electric lines that are arcing nearby. If you
have access to a portable HF receiver, you may be able to trace down
which pole it is. You may try taking a large hammer and hitting the
suspected pole and see if the level of the noise changes.

When its dry, the connection on the pole is not making a good contact
and is arcing. When the weather is wet, the humidity in the air is
making for a better contact.

Andy
WD4KDN



Bad advise!! Do NOT hit a power pole with a sledge hammer. Never!

If something is loose or broken on the pole, it could fall on you,
injuring or killing you. I once had a lineman replace a defective
transformer switch which was causing interference. All he did was
touch it with his hot stick, there was a blue flash and about 5 or 6
people lost power. Fragments of the defective switch fell to the
ground. Same thing could happen with cracked insulators or defective
lightning arrestors. And banging on poles will usually prove nothing
if a lightning arrestor is bad.

If a connection is ready to come apart, hitting the pole could cause a
power outage to one or several customers. Some older type bolt-on
bails are hanging on by a thread after years of rusting away.

Some power companies (including the one I work for) will prosecute if
you are caught hitting their equipment. If you suspect a problem on a
pole, write down any identifying numbers on the pole and call the
local power company.
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Old March 22nd 05, 12:27 AM
nitespark
 
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JRS wrote:
On Mon, 21 Mar 2005 12:21:46 -0500, nitespark
wrote:



wrote:

My QTH is a bit noisy at times, around S7 most days, with the exception
of rainy, damp or snowy days!

The question is... anytime there is any kind of dampness the noise goes
away, any ideas why?

Gil


You probably have some electric lines that are arcing nearby. If you
have access to a portable HF receiver, you may be able to trace down
which pole it is. You may try taking a large hammer and hitting the
suspected pole and see if the level of the noise changes.

When its dry, the connection on the pole is not making a good contact
and is arcing. When the weather is wet, the humidity in the air is
making for a better contact.

Andy
WD4KDN




Bad advise!! Do NOT hit a power pole with a sledge hammer. Never!

If something is loose or broken on the pole, it could fall on you,
injuring or killing you. I once had a lineman replace a defective
transformer switch which was causing interference. All he did was
touch it with his hot stick, there was a blue flash and about 5 or 6
people lost power. Fragments of the defective switch fell to the
ground. Same thing could happen with cracked insulators or defective
lightning arrestors. And banging on poles will usually prove nothing
if a lightning arrestor is bad.

If a connection is ready to come apart, hitting the pole could cause a
power outage to one or several customers. Some older type bolt-on
bails are hanging on by a thread after years of rusting away.

Some power companies (including the one I work for) will prosecute if
you are caught hitting their equipment. If you suspect a problem on a
pole, write down any identifying numbers on the pole and call the
local power company.


Yeah boy...they'll jump right on it to get it fixed....

http://www.arrl.org/tis/info/HTML/pl...t_Letters.html


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