Rex,
    I suspect that the hurricane might be your problem.  I am located in
East Lansing, MI - operating station LNSM (not a PSN station).  We currently
are seeing noise levels approximately 10X normal background in the 0.2 Hz
range.  This is normal for us whenever there is a hurricane or large storm
off the east coast.  At times, the noise here has increased about 50X due to
hurricanes.  So, I would suggest waiting until the hurricane passes and see
if your noise levels go down.
    If anyone has any references for coastal storm induced noise for
stations far inland, it might be helpful for additional information.

Kevin Mackey
Michigan State University


----- Original Message -----
From: Rex Klopfenstein, Jr 
To: 
Sent: Monday, August 30, 1999 1:43 PM
Subject: PSN - Increase in noise


> I have two S-G seisms running and everything was fine.  I had the
> amplifiers adjusted to display about +/-100 counts of background noise.
> Sunday (8/29/99) I turned on the monitor on my SDR computer.  All
> channels (HI/LO on both N/S and E/W) are somewhat more noisy.  The
> average values are now about +/-300 to 400 counts.
>
> Would this increase in noise be caused by the hurricane on the East
> Coast (I am located in NW Ohio).  I remember seeing something on this
> list sometime ago, but can't remember if there was a characteristic
> frequency of this hurricane noise.
>
> If the hurricane isn't doing it, it's time for some detective work!!
>
> Rex Klopfentein, Jr.
> rklopfen@.........
> http://www.wcnet.org/~rklopfen
>



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