Frequency and Span - Analyzer R&S ESCI
1166.6004.12 4.74 E-1
Setting the Frequency Span – SPAN Key
SPAN menu
SPAN
MANUAL
LAST SPAN
SWEEPTIME
MANUAL
FULL SPAN
SPAN
.
.
.
The SPAN key opens a menu which offers various options
for setting the span.
The entry of the span (SPAN MANUAL softkey) is
automatically active for span > 0 Hz.
For span = 0 Hz the entry for sweep time (SWEEPTIME
MANUAL) is automatically active.
With two windows (SPLIT SCREEN) displayed at the
same time, the input data always refer to the window
selected with hotkey SCREEN A/B.
SPAN
MANUAL
The SPAN MANUAL softkey activates the window for manually entering the
frequency span. The center frequency is kept constant.
The allowed range of span values is for the time domain (span = 0): 0 Hz
and for the frequency domain (span >0): minspan ≤f
span
≤f
max
f
span
frequency span
minspan smallest selectable span (10 Hz)
f
max
max. frequency
IEC/IEEE-bus command FREQ:SPAN 2GHz
SWEEPTIME
MANUAL
The SWEEPTIME MANUAL softkey activates the window for entering the sweep
time manually with Span = 0 Hz. The softkey is not available for Span > 0 Hz.
IEC/IEEE-bus command: SWE:TIME 10s
FULL SPAN
The FULL SPAN softkey sets the span to the full frequency range of R&S ESCI.
IEC/IEEE-bus command FREQ:SPAN:FULL
ZERO SPAN
The ZERO SPAN softkey sets the span to 0 Hz. The x axis becomes the time
axis with the grid lines corresponding to 1/10 of the current sweep time (SWT).
IEC/IEEE-bus command FREQ:SPAN 0Hz
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