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68 Chapter 3
Overview of the Test Set’s Built-In Tools
Using the Spectrum Analyzer
Using the Spectrum Analyzer
Automatic Calibration
During operation, the spectrum analyzer pauses for approximately
2 seconds every 5 minutes to recalibrate itself. This does not affect the
accuracy of displayed measurements, but does cause a brief
interruption of the displayed information during the process.
Setting Resolution Bandwidth and Sweep Rate
The resolution bandwidth and sweep rate are determined by the span
setting, and cannot be set independently.
These settings are listed in the following table.
Table 3-4 Relationship Between Span, Resolution Bandwidth, and Sweep Rate
Span
Resolution BW
(kHz)
Sweep Rate
<50 kHz 0.3 28.6 kHz/second
<200 kHz 1.0 329.0 kHz/second
<1.5 MHz 3.0 3.0 MHz/second
<3 MHz 30.0 21.4 MHz/second
<18 MHz 30.0 36.3 MHz/second
<200 MHz 300.0 257.0 MHz/second
1 GHz 300.0 1.0 GHz/second
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