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Chapter 3 111
Programming Examples
Using Marker Delta Mode and Marker Minimum Search
viPrintf(viESA,"CALC:MARK:MAX\n");
/*Set the analyzer to activate delta marker mode*/
viPrintf(viESA,"CALC:MARK:MODE DELT\n");
/*Trigger a sweep, wait for completion*/
viPrintf(viESA,"INIT:IMM;*WAI\n");
/*Set the marker to minimum amplitude*/
viPrintf(viESA,"CALC:MARK:MIN\n");
/*Query and read the marker amplitude*/
viQueryf(viESA,"CALC:MARK:Y?\n","%lf",&dMarkerAmplitude);
/*print the marker amplitude*/
printf("\n\n\tRESULT: Marker Amplitude Delta = %lf dB\n\n",dMarkerAmplitude);
/*Close the session*/
viClose(viESA);
viClose(defaultRM);
}