R&S FSW Series, Руководство пользователя

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Remote Commands
R&S
®
FSW
901 User Manual 1173.9411.02 ─ 43
[SENSe:]POWer:BWIDth <Percentage>
[SENSe:]POWer:BANDwidth <Percentage>
This command selects the percentage of the total power that defines the occupied
bandwidth.
Parameters:
<Percentage> Range: 10 PCT to 99.9 PCT
*RST: 99 PCT
Default unit: PCT
Example:
POW:BAND 95PCT
Manual operation: See "% Power Bandwidth" on page 216
14.5.5.2 Programming Example: OBW Measurement
This programming example demonstrates the measurement example described in
Chapter 7.4.5, "Measurement Example" , on page 218 in a remote environment.
//-----------Preparing the measurement ------------
//Reset the instrument
*RST
//-------------Configuring the Measurement-----------------------
//Set the center frequency to 800 MHz.
FREQ:CENT 800MHz
//Set the reference level to -10 dBm.
DISP:TRAC:Y:RLEV -10dBm
//Activate occupied bandwidth measurement.
CALC:MARK:FUNC:POW:SEL OBW
//Set the percentage of power to 99%.
POW:BWID 99PCT
//Set the channel bandwidth to 21 kHz.
POW:ACH:BAND 21kHz
//Optimize the instrument settings according to the channel bandwidth.
POW:ACH:PRES OBW
//Determine the ideal reference level for the measurement.
POW:ACH:PRES:RLEV
//Set the trace detector to positive peak.
DET APE
//--------------Performing the Measurement-----
//Select single sweep mode.INIT:CONT OFF
//Initiate a new measurement and waits until the sweep has finished.
INIT;*WAI
//---------------Retrieving Results-------------
//Return the occupied bandwidth.
CALC:MARK:FUNC:POW:RES? OBW
Configuring and Performing Measurements