GW Instek GSP-827 User Manual - Manual (Page 37)

2.7GHz Spectrum Analyzer Operation Manual
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36
8.1.2 Span Functions
Span is to define the frequency range of measurement. When all the BW settings (RBW, VBW
and Sweep Time) are in Auto mode, BW settings is changed following the change of the span.
Please refer to the BW function to see the details.
Full Span will set the Span at 2700MHz, in other words, the start frequency is at 0 and stop is at
2700MHz. Zero Span will stop the frequency sweep and stay at the Center frequency. In other
words, the unit only measures the center frequency. When the tracking generator is in use, it will
generate a fixed frequency signal not sweeping signal. Refer to TG (Option
→TG) function for
details. Last Span will let Span return to the last setting. Note that only one last setting will be
kept.
F1
F2
F3
F4
F5
F6
Center
Start
stop
Step
Peak-
>Cente
Span
Zero
Span
Full
Span
Last
Span
0
1 2 3
7
6 5 4
8 9
. -
Span