Rohde & Schwarz FPL1000 Series, Руководство пользователя

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The Spectrum Application (RF Measurements)
R&S
®
FPL1000
439 User Manual 1178.3370.02 ─ 03
the RF to the current marker position, then counts the zero crossings of the IF (thus the
term signal
counter ) and derives the precise frequency value.
Signal counting can be performed explicitly at the current marker position ( "Signal
Count" marker function), or implicitly by the R&S
FPL1000 for certain functions.
Signal counting is only possible while the instrument is not sweeping. Thus, to perform
a signal count for a marker, the sweep is stopped at the marker position. The fre-
quency is determined with the desired resolution and then the sweep is allowed to con-
tinue.
A measurement example is described in "Measuring the Signal Frequency Using the
Signal Counter" on page 237.
Signal counters are not available for measurements on I/Q-based data.
Remote commands:
CALCulate<n>:MARKer<m>:COUNt
on page 754
CALCulate<n>:MARKer<m>:COUNt:RESolution
on page 755
Signal Count Marker State ......................................................................................... 439
Resolution .................................................................................................................. 439
Signal Count Marker State
Activates or deactivates the special signal count marker function.
When activated, the sweep stops at the reference marker until the signal counter has
delivered a result.
Remote command:
CALCulate<n>:MARKer<m>:COUNt
on page 754
CALCulate<n>:MARKer<m>:COUNt:FREQuency?
on page 755
Resolution
Defines the resolution with which the signal is analyzed around the reference marker 1.
Remote command:
CALCulate<n>:MARKer<m>:COUNt:RESolution
on page 755
7.9.4.2 Measuring Noise Density (Noise Meas Marker)
Access : "Overview" > "Analysis" > "Marker Functions" > "Select Marker Function" >
"Noise Measurement" > "Noise Meas Config"
Marker Usage