I have finished my sensor, and have had it running for three days.

1.  During the night hours, 11pm to 6am, the tract goes from normal to =
noisy, getting worse each hour.  The sensor sits in the garage on a =
concrete slab.  No draft and no heat.  As soon as I go into the garage =
in the AM and the room gets warmer, because the sun warms the room to =
about 60 f. The trace returns to normal.  Is this temperature effect?  I =
also turn off the monitor and turn it back on in the AM.  Could the CTR =
or the computer create noise? They set about three feet from the sensor. =
Again no heat, no draft and nothing running out there in the night.

2.   I think I am getting a good recording, I have see the last two =
quakes and to me they look normal.
I am in Boise Idaho and have tried to compare my .PSN with any others =
close by.  However our local one in Boise is down and the next, nearest =
one is in Washington State.   Now here is a hard question to ask:  I =
created my expanded trace, using the same time plotted on the .PSN in =
Washington (061017.013725.ebgz.psn M6.5 10356km from Ellensburg, Wa.,) =
This was around one hour of trace.  I did this so I could compare the =
two side by side.  I was a little surprised to see the Wa. psn to show a =
large spike on the P and a short spike on the S.  My trace looks very =
similar, but I show a large spike on the S and a smaller spike on the P. =
  From the description of the Ellensburg Wa file it has a Z in it, is =
that a Vertical sensor? and since my sensor is a Horz pointing N/S, =
would that explain the different. These events came from the East, and I =
have my beam pointing North.
Anyone who would like me to send both .PSN's to them for a critique, =
please email me.   I would appreciate someone looking at them and =
voicing an opinion as to my level of gain, not sure if it is correct, =
and some advise as to how to best filter this event to enhance the P and =
S. I am just using trial and error.

3.  Presently I am building a Plexiglas box.  But would it help to =
reduce noise if I built a second box wrapped with alum foil?   Or other =
ideas on building a box which would make a positive different?

4.   I know weather can alter the way the trace looks, I thought my =
situation was weather, but it was clear today.
What is there in a front moving thru that creates the noise?   Lets say =
a front with little wind and no lightening.








I have finished my sensor, and have had =
it running=20
for three days.
 
1.  During the night hours, 11pm =
to 6am, the=20
tract goes from normal to noisy, getting worse each hour.  The =
sensor sits=20
in the garage on a concrete slab.  No draft and no heat.  As =
soon as I=20
go into the garage in the AM and the room gets warmer, because the =
sun=20
warms the room to about 60 f. The trace returns to normal.  Is this =

temperature effect?  I also turn off the monitor and turn it back =
on in the=20
AM.  Could the CTR or the computer create noise? They set about =
three feet=20
from the sensor. Again no heat, no draft and nothing running out there =
in the=20
night.
 
2.   I think I am getting a =
good=20
recording, I have see the last two quakes and to me they look=20
normal.
I am in Boise Idaho and have tried to =
compare my=20
..PSN with any others close by.  However our local one in Boise is =
down and=20
the next, nearest one is in Washington State.   Now here is a =
hard=20
question to ask:  I created my expanded trace, using the same time =
plotted=20
on the .PSN in Washington (061017.013725.ebgz.psn M6.5 10356km from Ellensburg, Wa.,) =
This was=20
around one hour of trace.  I did this so I could compare the two =
side by=20
side.  I was a little surprised to see the Wa. psn to show a large =
spike on=20
the P and a short spike on the S.  My trace looks very similar, but =
I show=20
a large spike on the S and a smaller spike on the P.   From =
the=20
description of the Ellensburg Wa file it has a Z in it, is that a =
Vertical=20
sensor? and since my sensor is a Horz pointing N/S, would that explain =
the=20
different. These events came from the East, and I have my beam pointing=20
North.
Anyone who would like me to send both .PSN's to them for a =
critique, please=20
email me.   I would appreciate someone looking at them and =
voicing an=20
opinion as to my level of gain, not sure if it is correct, and some =
advise as to=20
how to best filter this event to enhance the P and S. I am just using =
trial and=20
error.
 
3.  Presently I am building a =
Plexiglas=20
box.  But would it help to reduce noise if I built a second box =
wrapped=20
with alum foil?   Or other ideas on building a box which would =
make a=20
positive different?
 
4.   I know weather can alter =
the way the=20
trace looks, I thought my situation was weather, but it was clear=20
today.
What is there in a front moving thru =
that creates=20
the noise?   Lets say a front with little wind and no=20
lightening.
 
Many thanks, =
Ted