Anritsu MS2840A - SPUR:SYNT:LPH;SPUR:SYNT:LPH?

Chapter
４
Native Device Message Details
4-298
SPUR:SYNT:LPH/SPUR:SYNT:LPH?
Low Phase Noise for Spurious Emission Measurement
Function
This command enables/disables Low Phase Noise function during
Spurious Emission measurement.
Command
SPUR:SYNT:LPH switch
Query
SPUR:SYNT:LPH?
Response
switch
Parameter
switch
Low Phase Noise switch
ON|1
Enables Low Phase Noise switch.
OFF|0
Disables Low Phase Noise switch.
Default Off
Detail
This function is available when MS2830A-062/066 or MS2840A-066/166
is installed.
This function does not depend on the setting of the Low Phase Noise
switch at System Config. The setting-enabled conditions are as follows:
Function
status
System Config Low
Phase Noise switch
status
Low Phase Noise switch status
On
On
Enables the Low Phase Noise
function during Spurious Emission
measurement.
Off
Off
On
Disables the Low Phase Noise
function during Spurious Emission
measurement.
Off
The status at other than spurious emission measurement is reflected by
the System Config switch.
The phase noise characteristics can be improved using the Low Phase
Noise Function when the Low Phase Noise switch is On, the frequency
range is –20 MHz ≤ f ≤ 3.7 GHz (–20 MHz ≤ f < 3.5 GHz when Frequency
Band Mode is Spurious) and the Span Frequency is less than 1 MHz.
However, if a signal outside the DUT frequency range is input while
using the Low Phase Noise Function, it may be possible to measure
spurious noise generated within the unit.
Refer to the
MS2830A/MS2840A Signal Analyzer Operation Manual
(Spectrum Analyzer Function Operation)
for details about spurious noise