Thanks Chris=2C
I was able to remove the reverse convection problem=2C but I did it the har=
d way I built a 2.5 inch thick styrofoam box with six inches clearance all =
the way around the wood box.
I then placed a heating pad on top of the wood box and inside the styrofoam=
 box. The outdoor temperatures here was 76F 24 hrs ago to 25F tonight and i=
t is staying in the 60s constant in the void between the two boxes. this st=
opped all the drifting or convection noise. There seem to be a increase in =
the 6-second microseisms as a strong cold front moved through but it looked=
 very similar to The CERI Helicorder Displays From Pickwick TN about 25 mil=
es from me.
=20
I agree with you on the base on a single cross brace I will go back and reb=
uild that.=20

Do you have pictures of your instruments?=2C I would like to see them.

Thanks Bryan
 		 	   		  =





Thanks Chris=2C
I was able to remove the reverse convection problem=2C bu=
t I did it the hard way I built a 2.5 inch thick styrofoam box with six inc=
hes clearance all the way around the wood box.
I then placed a heati=
ng pad on top of the wood box and inside the styrofoam box. The outdoor tem=
peratures here was 76F 24 hrs ago to 25F tonight and it is staying in the 6=
0s constant in the void between the two boxes. this stopped all the driftin=
g or convection noise. There seem to be a increase in the 6-=
second microseisms as a strong cold front moved through but it looked very simila=
r to The CERI Helicorder Displays Fr=
om Pickwick TN about 25 miles from me.
 
I agree with you on th=
e base on a single cross brace I wil=
l go back and rebuild that. 

Do you have pictures of your instruments?=2C I would like to see them.

Thanks Bryan
 		 =
	   		  
=