28.12.2012 Views

Software Manual for the R&S ZVL-K1 - Rohde & Schwarz

Software Manual for the R&S ZVL-K1 - Rohde & Schwarz

Software Manual for the R&S ZVL-K1 - Rohde & Schwarz

SHOW MORE
SHOW LESS

You also want an ePaper? Increase the reach of your titles

YUMPU automatically turns print PDFs into web optimized ePapers that Google loves.

Using Marker and Delta Marker R&S <strong>ZVL</strong>-<strong>K1</strong><br />

REM ************************************************************************<br />

Public Sub TOI()<br />

result$ = Space$(100)<br />

'––––––––– R&S <strong>ZVL</strong>-<strong>K1</strong> default setting ––––––––––––––––––––––––––––––––––––––<br />

––<br />

CALL SetupStatusReg 'Set status registers<br />

CALL InstrWrite(analyzer,"*RST") 'Reset instrument<br />

CALL InstrWrite(analyzer,"INIT:CONT OFF") 'Single sweep<br />

CALL InstrWrite(analyzer,"SYST:DISP:UPD ON")<br />

'ON: display on<br />

'OFF: off<br />

'––––––––– Set frequency –––––––––––––––––––––––––––––––––––––––––––––––––––<br />

CALL InstrWrite(analyzer,"FREQ:STARt 85MHz;STOP 125 MHz")<br />

'Span<br />

'––––––––– Set level –––––––––––––––––––––––––––––––––––––––––––––––––––––––<br />

CALL InstrWrite(analyzer,"DISP:WIND:TRAC:Y:RLEV –20dBm")<br />

'Reference level<br />

CALL InstrWrite(analyzer,"INIT;*WAI") 'Per<strong>for</strong>m sweep with sync<br />

'––––––––– TOI measurement –––––––––––––––––––––––––––––––––––––––––––––––––<br />

CALL InstrWrite(analyzer,"CALC:MARK:PEXC 6DB")<br />

'Peak excursion<br />

CALL InstrWrite(analyzer,"CALC:MARK:FUNC:TOI ON")<br />

'Switch on TOI measurement<br />

CALL InstrWrite(analyzer,"CALC:MARK:FUNC:TOI:RES?")<br />

'and read out results<br />

CALL InstrRead(analyzer,result$)<br />

'––––––––– Read out result ––––––––––––––––––––––––––––––––––––––––––––––––<br />

Print "TOI [dBm]: ";result$<br />

END SUB<br />

REM ************************************************************************<br />

Measuring <strong>the</strong> AM Modulation Depth<br />

The example below is based on an AM–modulated signal at 100 MHz with <strong>the</strong> following characteristics:<br />

Carrier signal level: –30 dBm<br />

AF frequency: 100 kHz<br />

Modulation depth: 50 %<br />

The default setting of <strong>the</strong> analyzer <strong>for</strong> measurements can be used <strong>for</strong> <strong>the</strong> measurements described<br />

below (SetupInstrument).<br />

REM ************************************************************************<br />

Public Sub AMMod()<br />

result$ = Space$(100)<br />

CALL SetupInstrument 'Default setting<br />

CALL InstrWrite(analyzer,"BAND:RES 30kHz") 'Set appropriate RBW<br />

1303.6573.42 5.8 E-5

Hooray! Your file is uploaded and ready to be published.

Saved successfully!

Ooh no, something went wrong!