Adjustment procedures
6.
Set the calibration value to the default by entering the following GPIB
command:
“CALCOMP:DOUBLE "Internal10MHzRefFreq", 10e6
7.
Record the TDR Clock Out frequency (Reading 1).
8.
Set the DSA8300 TDR 10 MHz Reference trigger mode to
Internal
.
9.
Record the TDR Clock Out frequency (Reading 2).
10.
Enter the following GPIB command:
“CALComp:DOUBLE
“Internal10MHzRefFreq”, (Reading2/Reading1 * 10M)
11.
Measure the TDR Clock Out frequency. (Recheck)
12.
Verify that the reading is
10 MHz
(±1 kHz).
13.
If all readings are correct, entering the following GPIB command to save the
new calibration constants to the mainframe factory settings memory:
“CAL:SAV:FACTORY:MAIN”
14.
Update the mainframe calibration time/date/temperature stamp by entering
the following GPIB command:
“CAL”UPDATEINFO:MAIN”
15.
Enter the following GPIB command to turn the instrument cal constant
protection on:
SYST:PROT ON
End of Procedure
18
DSA8300 Digital Serial Analyzer and Modules Service Manual
