"Why doesn't the same moisture make the same noise level on similar
instead of lower antennas being significantly quieter?"
Well Tom, I have never thought about this much, but now that you are
making a point of it, I am very curious. I have been waiting for someone
to jump in and explain this, but so far no takers.
There are several facts that support your theory that precipitation
static is caused by coronal discharge and not from charged particles
hitting the elements. One is the statement above. When you have cronal
discharge, it is usually more prevalent at the higher points of the
The sound it makes is another. The frying or musical characteristics
would be easier to explain if the source was coronal discharge.
(However, the sound I get in my mobile setup, sounds somewhat different,
although it is definitely associated with rain and static electricity.
There may be an additional mechanism at work here.)
I think it would be easy to postulate a scenario that charge can be
built up between earth and the clouds by falling charged raindrops, and
this charge could produce coronal discharge from the antenna.
So we are hearing St. Elmo's fire (whether we see it or not)?
Could this be a real justification for the use of porcupine balls? Or
would that just make it worse because there is more corona with the
balls, even though it would be located not on the elements but close by.
Tom Rauch wrote:
><Funny you can't find evidence. It's widely reported in the
><literature, for at least the last 100 years, and probably
>longer than that.
>So you say. What particular literature ties charged droplets
>to hissing or musical staic noise in receivers and how did
>they determine it?
>If it is droplets, why do I (and many others) notice that
>the SAME mositure hitting a high antenna makes the noise
>while it doesn't make the "drop hitting the conductor" noise
>on a low antenna? People with stacks of similar antennas
>notice this all the time.
>My Beverages for example NEVER have precipt static even
>though bare wire. My antennas on top of towers do, while
>lower antennas are very quiet even though the same moisture
>hits them all.
>Why doesn't pitch track rate of moisture? Why doesn't the
>same moisture make the same noise level on similar antennas,
>instead of lower antennas being significantly quieter?
>See: http://www.mscomputer.com for "Self Supporting Towers", "Wireless
>Weather Stations", and lot's more. Call Toll Free, 1-800-333-9041 with any
>questions and ask for Sherman, W2FLA.
>TowerTalk mailing list
See: http://www.mscomputer.com for "Self Supporting Towers", "Wireless Weather
Stations", and lot's more. Call Toll Free, 1-800-333-9041 with any questions
and ask for Sherman, W2FLA.
TowerTalk mailing list