HP 1660CS-Series User Manual page 321

Calibrating the oscilloscope
Self Cal menu calibrations
Optimize the Time Null of the Self Cal.
3
a
Connect two BNC 50-Ω, 9-inch cables to the BNC tee adapter.
Connect the BNC 50Ω (f)(f) adapter to the BNC tee adapter, and
connect the 48-inch BNC cable to the BNC 50Ω (f)(f) adapter. Once
you select Start, the instrument will prompt you to connect the cables
to the appropriate locations on the rear panel of the instrument.
Select the Procedure field, then select Time Null from the pop-up
b
menu.
Select the Start field and follow the instructions on the display.
c
After completion of the Time Null calibration, remove the cables from
d
the instrument.
Calibrate the Logic Trigger of the Self Cal.
4
a Obtain a BNC 50-Ω, 48-inch cable.
Select Start. The instrument will prompt you to connect the cable to
b
the appropriate location on the rear panel of the instrument.
Select the Procedure field, then select Logic Trigger from the pop-up
c
menu.
Select the Start field and follow the instructions on the display.
d
After completion of the Logic Trigger calibration, remove the cable
e
from the instrument.
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