Agilent Technologies ESA-E Series Programmer's Manual page 74

if (!lOpc)
{
printf("Program Abort! error ocurred: last command was not completed!\n");
exit(0);
}
/*Set the marker to the maximum peak*/
viPrintf(viESA,"CALC:MARK:MAX\n");
/*Set the analyzer to
viPrintf(viESA,"CALC:MARK:MODE DELT\n");
/*Trigger a sweep*/
viPrintf(viESA,"INIT:IMM\n");
/*Check for operation complete*/
viQueryf(viESA, "*OPC?\n", "%d", &lOpc);
if (!lOpc)
{
printf("Program Abort! error ocurred: last command was not completed!\n");
exit(0);
}
/*Set the marker to minimum amplitude*/
viPrintf(viESA,"CALC:MARK:MIN\n");
/*Query and read the marker amplitude*/
viPrintf(viESA,"CALC:MARK:Y?\n");
viScanf(viESA,"%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);
}
Chapter 3
activate delta marker mode*/
Using Marker Delta Mode and Marker Minimum Search
Programming Examples
3-19