Teledyne LeCroy LabMaster 9Zi-A - Manual (Page 131)

Getting Started Manual
922157-00 Rev A 123
4. When the previous operation is complete, you will be prompted to
use the same cable as used to connect to Channel 1 to connect the
Fast Edge output to Channel 5. After connecting, touch Next again.
5. Continue following on-screen prompts for as many additional
modules there are.
6. When completed, touch Finish to apply and store all corrections.
ChannelSync Cal
This calibration method is most common and is used to eliminate minor
static skew (<2 ps) differences between channels or to account for the
addition of cables or probes between the signal and oscilloscope input
channel. When Channel Sync Cal is complete, jitter between all channels is
adjusted to a level comparable to a single conventional oscilloscope
package , or better than 275 fs RMS.
NOTE THE FOLLOWING about ChannelSync Cal prior to performing the
procedure:

ChannelSync Cal can be performed on different gain settings by
using an attenuator (that you supply) to reduce the amplitude of
the Fast Edge output. Choose an attenuator value that provides for
a Fast Edge signal amplitude of ~4 to 7 divisions.

If you perform ChannelSync Cal only on the 100 mV/div gain range,
there is no need to enter a “Reference Correction” (attenuator
propagation delay value).