Download Tektronix 2715 Spectrum Analyzer user manual

Introduction
Post-detection digital sampling and storage is used with a unique max/min
display mode that provides a close approximation of analog displays. Peak
detection is also provided. It is possible to display up to four traces simultaneously and to perform ensemble statistics. A continuously updated “waterfall”
display mode can be used to compare the four most recent spectral sweeps.
124 Kbytes of nonvolatile random access memory (NVRAM) is provided to
enable saving front-panel configurations and spectral sweeps for later review or
operation. The exact storage capability depends on what else you are storing in
the instrument (such as user-defined keystroke sequences).
You may improve the center frequency setting time in some applications by
changing the YIG oscillator settling delay time from the factory default value.
The new setting value is saved automatically. See Changing the YIG Settle Delay
on page 6–78 for more information.
NOTE. The stability and frequency accuracy specifications of the spectrum
analyzer are guaranteed only for the factory default YIG settling delay time.
In-service measurement capability includes measurement of C/N, CSO, and ICR
(on NTSC and PAL signals only). Gating hardware in the 2715 Spectrum
Analyzer allows these measurements to be made on normal modulated TV
signals without disruption to the TV program in progress.
Since gated-measurement techniques have advantages and disadvantages, the
2715 Spectrum Analyzer is designed so that you always have a choice of
whether or not you use gated (in-service) measurement techniques. If you follow
the In-Service menu selections for C/N, CSO, or ICR, you will be making a
gated measurement; otherwise you will be making a measurement in the
conventional way without gating. For more information about in-service
measurements refer to In-Service Measurement Capability on page 5–18.
The instrument is very durable, but rough handling, or liquids, dust, or other
contaminants inside the case can cause damage. The optional Travel Line
package provides additional protection during transportation.
Optional capabilities result in even greater performance. Refer to Appendix F:
Accessories and Options, for information on options currently available for the
2715 Cable TV Spectrum Analyzer.
2715 User Manual
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