In a message dated 11/03/2010, icarus@......... writes:

This is  an ongoing project that is affecting all the networks that are 
tied into the  IRIS system.  When the digitizer is upgraded, they also rename 
the two  horizontal channels


Hi Bob,
 
    I don't think that we would be very interested in  old 24 bit 
digitizers, but I note that 138 stations are effected. We might well  be interested 
in secondhand sensors if any are being scrapped. 
    Do you have any details, please?
 
    Regards,
 
    Chris Chapman






In a message dated 11/03/2010, icarus@......... writes:
This is=20
  an ongoing project that is affecting all the networks that are tied into=
 the=20
  IRIS system.  When the digitizer is upgraded, they also rename the=
 two=20
  horizontal channels

Hi Bob,
 
    I don't think that we would be very intereste=
d in=20
old 24 bit digitizers, but I note that 138 stations are effected. We might=
 well=20
be interested in secondhand sensors if any are being scrapped. 
    Do you have any details, please?
 
    Regards,
 
    Chris Chapman