Guralp Systems CMG-DCM build <10,000 - Manual (Page 195)

Operator's Guide
To change the gain using the command line, use the data­terminal
command to connect to the digitiser, as described in section 13.2.2.2
on page 177 and issue one of the following two commands.
To simultaneously set all channels to the same gain, enter the
command:
gain *gains
where gain is one of 1, 2, 4, 8, 16, 32 or 64. For example, to select
×8 gain on all channels, enter the command
8 *gains
The digitiser must be rebooted before the change will take effect.
To set the gain for an individual channel, enter the command:
channel gain *gain
where channel is one of 0 (vertical), 1 (North/South), 2 (East/West) or
3 (auxiliary/calibration). On seven channel digitisers, this parameter
can also be one of 4 (vertical), 5 (North/South) or 6 (East/West),
referring to the components from the second instrument. gain is one
of 1, 2, 4, 8, 16, 32 or 64. For example, to select ×16 gain on just the
vertical channel, enter the command
0 16 *gains
The digitiser must be rebooted before the change will take effect.
November 2010 195