R&S FSW Series - Page 916

Remote Commands
R&S
®
FSW
916User Manual 1173.9411.02 ─ 43
Suffix:
<n>
.
irrelevant
Query parameters:
<ResultType> CPOWer | NPOWer | NPRatio | ALL
CPOWer
Returns the total measured power divided by the channel band-
width (without notches) or integration bandwidth (with notches)
in dBm/Hz
NPOWer
Returns the power measured in each notch divided by the notch
bandwidth in dBm/Hz
NPRatio
Returns the ratio of the total channel power density divided by
the notch power density for each notch in dB
ALL
Returns all power results for the channel and <n> defined
notches in the following order:
<ChannelPowerDens>,<NotchPowerDens1>,..,<NotchPower-
Dens<n>>,<NPR1>,..,<NPR<n>>
Return values:
<ResultTypeResult>
Example:
CALC:NPR:RES? NPR
Returns the power ratio in dB for each notch.
Usage: Query only
14.5.6.5 Programming Example: Measuring the Noise Power Ratio
This example demonstrates how to determine the noise power ratio for the Chap-
ter 7.5.8, "Measurement Example", on page 234 in a remote environment.
//-----------Configuring the measurement ------------
//Reset the instrument
*RST
//Set the center frequency to 500 MHz
FREQ:CENT 500000000
FREQ:SPAN 80000000
//Activate NPR measurement.
NPR:STAT ON
//Specify the channel bandwidth to be used = 72 MHz
NPR:CHAN:BWID 72000000
NPR:CHAN:INT:AUTO ON
//Define the two notches at +/- 12.2 MHz from the CF,
//with a bandwidth of 3.6 MHz
NPR:NOTC:COUN 2
NPR:NOTC1:FREQ:OFFS -12200000
Configuring and Performing Measurements