Rohde & Schwarz FSW-K40 - Page 157

Remote Control Commands for Phase Noise Measurements
R&S
®
FSW-K40
157User Manual 1173.9286.02 ─ 15
CALC:SNO1:X 50KHZ
CALC:SNO2:STAT ON
CALC:SNO2:X 500KHZ
//Read out spot noise marker results.
//Read out the decade edges:
CALC:SNO:DEC:X?
//Read out the marker positions on the decade edges:
CALC:SNO:DEC:Y?
//Read out customized spot noise marker results:
//At 50 kHz:
CALC:SNO1:Y?
//At 500 kHz:
CALC:SNO2:Y?
8.16.5 Using Limit Lines
Programming a phase noise limit line with three segments
//Define the level of the DUT's noise floor.
CALC:PNL:NOIS -134
//Select the number of line segments.
CALC:PNL:TYPE FC3
//Define the characteristics of the line segments.
CALC:PNL:FC1 300KHZ
CALC:PNL:SLOP1 10
CALC:PNL:FC2 30KHZ
CALC:PNL:SLOP2 20
CALC:PNL:FC3 3KHZ
CALC:PNL:SLOP3 30
//Assign the limit line to trace 1 and 2.
CALC:PNL:TRAC 1,2
//Query limit check results.
CALC:PNL:FAIL?
Programming a standard limit line
//Select or create the limit line by name.
CALC:LIM:NAME 'Phase Noise'
//Comment on the limit line.
CALC:LIM:COMM 'Limit line to test phase noise measurement'
//Define the horizontal data points of the limit line.
CALC:LIM:CONT 100HZ,1kHZ
//Define the vertical data points of an (upper) limit line.
//The unit is fix for phase noise measurements.
CALC:LIM:UPP -160,-170
//Shift the limit line 5 dBc/Hz down.
CALC:LIM:UPP:SHIF -5
//Turn the limit line on.
CALC:LIM:UPP:STAT ON
Remote Control Example Scripts