Francesco,

See the following schematic =
http://www.seismicnet.com/onlinedocs/voltdrop.gif on how to lower the =
input voltage to the Amp/Filter board.

-Larry Cochrane
Redwood City, PSN
  ----- Original Message -----=20
  From: Francesco=20
  To: psn-l@.................
  Sent: Wednesday, January 09, 2002 4:13 AM
  Subject: MARK SENSOR


  Hi to all
  from some weeks I'm using in my station 3 Mark L4 sensors with Larry's =
ampli board.
  The output signal is very high, and a small events also near me =
saturats the amplitude.
  The gain is at min.

  What I do to resolve this problem?

  In another station of our network, we use the Mauro Mariotti's ampli =
board with the input resistor of 22k and all works fine.

  Can I do the same change?

  regards

  Fraancesco     Italy







Francesco,
 
See the following schematic http://www.sei=
smicnet.com/onlinedocs/voltdrop.gif on=20
how to lower the input voltage to the Amp/Filter board.
 
-Larry Cochrane
Redwood City, PSN

  
----- Original Message ----- 
  From:=20
  Francesco 
  
To: psn-l@.............. 
  
Sent: Wednesday, January 09, =
2002 4:13=20
  AM
  
Subject: MARK SENSOR
  


  
Hi to all
  
from some weeks I'm using in my =
station 3 Mark L4=20
  sensors with Larry's ampli board.
  
The output signal is very high, and a =
small=20
  events also near me saturats the amplitude.
  
The gain is at min.
  
 
  
What I do to resolve this =
problem?
  
 
  
In another station of our network, we =
use the=20
  Mauro Mariotti's ampli board with the input resistor of 22k and all =
works=20
  fine.
  
 
  
Can I do the same =
change?
  
 
  
regards
  
 
  
Fraancesco    =20
  Italy