User Manual

The Spectrum Application (RF Measurements)
R&S
®
FPL1000
439User 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