Equipment Hookup; Main Instrument Adjustments; Dc Calibrator Adjust - Tektronix DSA8300 Service Manual

Adjustment Procedures

Equipment Hookup

Main Instrument Adjustments

DC Calibrator Adjust

3–2
1. Connect the equipment as shown in the following figure:
2. Set the National Instruments GPIB Interface command software to allow
GPIB communications between the PC controller and DSA8300, device
under test (DUT).
3. Allow the test equipment and DUT to warm up for at least 20 minutes before
starting the adjustment procedures.
1. Use the equipment connection shown in the preceding figure. Make sure that
the equipment has warmed up for at least 20 minutes.
2. Run the compensation routine.
3. Verify communication between the controller and DUT by entering the
following GPIB command:
The instrument should respond with Tektronix and Firmware Version.
4. Turn off the instrument cal constant protection by entering the following
GPIB command:
SYST:PROT OFF
5. Set the instrument DC calibrator offset cal constant to 0 by entering the
following GPIB command:
6. Wait 8 seconds, and then set the instrument DC calibrator Lsb cal constant
to 1.0 by entering the following GPIB command:
"DcCalLsbAdj",1.0
7. Wait 8 seconds, and then set the instrument DC calibrator output to 0 Volts by
entering the following GPIB command:
8. Record the DMM reading.
DSA8300 Digital Serial Analyzer and Modules Service Manual
*IDN
CALCOMP:DOUBLE "DcCalOffsetAdj",0.0
CALCOMP:DOUBLE
CALIBRATE:DCCALIBRATOR 0.0