Tektronix 2715 Sweep Rate and Accuracy, Triggering

Performance Verification
2715 Spectrum Analyzer Service Manual 4-23
Performance requirementis 10% over the center eight divisions.
HTest equipmentrequired:
Time Mark Generator
1. Recall default power up settings by pressing UTIL 1 1.
2. Connect the Time Mark Generatorto the RF INPUT.
3. Connect the Time Mark GeneratorTrigger Output to J102, (EXT TRIG) on
the rear panel of the Spectrum Anal yzer.
4. Enable external triggeringby pressing SWP/TRIG 2.
5. Set the Time MarkGenerator controls for 50 ms time marks, and turn off the
Spectrum Analyzer video filter.
6. Select the following settings on the SpectrumAnalyzer:
FREQUENCY 10 MHz
REFERENCE LEVEL --30 dB m
SPAN/DIV ZERO
RESOLUTION BW 300 kHz
7. It may be necessaryto set the Horizontal position potentiometer on the rear
panel to align the marks with the graticule. Be sure to return the potentiome-
ter to its original position when done.
8. Check the accuracy of the 2 s to 1 ms sweep timing range by applying
appropriate markers for each sweep setting. The error should not exceed
±4 minor divisions measured over the center 8 divisions.
9. Turn offthe DISP LAYSTORAGE for the 50 s and faster sweep settings
and reset RESOLUTION BW to 5 MHz.
10. Disconnect the Time Mark Generator from t he RF INPUT.
Performance requirements are:
Internal: 1 division or more of signal
External: 1.0 V peak minimum.
HTest equipmentrequired:
Function Generator
1. Recall default power up settings by pressing UTIL 1 1.
Sweep Rate and Accuracy
Triggering