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Freq channel, Zone center – Agilent Technologies Signal Analyzer N9030a User Manual

Page 570

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6  RLC Swept SA Measurement Front-Panel & SCPI Reference
FREQ Channel

FREQ Channel

Accesses a menu of keys that allow you to control the Frequency and Channel parameters of the
instrument.

Some features in the Frequency menu are the same for all measurements – they do not change as
you change measurements.   Settings like these are called “Meas Global” and are unaffected by
Meas Preset.    For example, the Center Freq setting is the same for all measurements - it does not
change as you change measurements.  

Key Path

Front-panel key

Initial S/W Revision

Prior to A.02.00

Zone Center

Zone Center

appears as the top key in the Frequency menu in the Trace Zoom View of the Spectrum

Analyzer & RLC Modes.

Zone Center

allows you to change the frequency of the zone without changing the zone span. As the

zone center is changed, the center frequency of the lower window is changed. Note that the lower
window is not updated to reflect the change unless it is selected as the active window.

The center frequency for the lower window is not limited by the selected start and stop
frequencies in the upper window. However, if the frequency span of the lower window is at all
outside of the span for the upper window, an orange arrow pointing left or right will be displayed
at the left or right edge of the top window.

Key Path

FREQ Channel

Remote Command

[:SENSe]:FREQuency:ZSPan:CENTer

[:SENSe]:FREQuency:ZSPan:CENTer?

Example

:FREQ:ZSP:CENT 20 MHz

Notes

Min and Max values depend on the Hardware Options (5xx)

Dependencies

Only appears when the Zone Span View of the Swept SA measurement is selected.  If the SCPI
command is sent in other Views, an error is generated.

Couplings

Center Frequency of lower window changes so that it is always the same as Zone Center, and

vice-versa

Affected by Freq Offset exactly the same as is Center Frequency.

Preset

On entry to Zone Span, the Zone Center frequency is the same as the analyzer Center Frequency.
So if you do a Mode Preset and then immediately go into Zone Span, Zone Center matches the
Preset values listed in the table under the Center Freq key description.

570

Remote Language Compatibility Measurement Application Reference