Adjustment procedures
Internal 10 MHz adjust
CAUTION.
To prevent incorrect calibration values, make sure that the DSA8300
and test equipment have warmed up for at least 20 minutes before performing
this procedure, and that compensation was run on the DSA8300 since the last
power-up or if temperature has deviated by 5 °C since the last compensation.
1.
Connect the DSA8300 to a signal generator and frequency counter as shown
in the following
fi
gure:
2.
Set the signal generator as follows:
Frequency:
1 GHz
Amplitude:
1.0 V peak to peak
Output:
On
3.
Set the frequency counter as follows:
Frequency:
200 kHz
Number of digits:
9
4.
Set the DSA8300 as follows:
Trigger source to
TDR
(
Setup > Mode/Trigger
: select
TDR
for Trigger
Source)
TDR trigger source clock rate to
200 kHz
TDR Trigger mode to External (
Setup > Mode/Trigger > Advanced
Trigger Setup
: select
External
for TDR 10 MHz Reference)
5.
Enter the following GPIB command to turn the instrument cal constant
protection off:
“SYST:PROT OFF”
DSA8300 Digital Serial Analyzer and Modules Service Manual
17
