HP ESA-E Series - Using Marker Delta Mode and Marker Minimum Search; Example

Chapter 3 3-15
Programming Examples
Using Marker Delta Mode and Marker Minimum Search
Using Marker Delta Mode and Marker
Minimum Search
This C programming example does the following:
• Open an HP-IB session at address 18.
• Clear the analyzer.
• Reset the analyzer.
• Set the input port to the 50 MHz reference.
• Set the analyzer to single sweep mode.
• Prompt the user for the start and stop frequencies and set them.
• Trigger a sweep.
• Check for operation complete.
• Set the marker to the maximum peak.
• Set the analyzer to active delta marker mode.
• Trigger a sweep.
• Check for operation complete.
• Set the marker to minimum amplitude mode.
• Query, read and display the marker amplitude.
• Close the session.
Example:
#include <stdio.h>
#include <stdlib.h>
#include <math.h>
#include <conio.h>
#include <ctype.h>
#include <string.h>
#include "visa.h"
#define hpESA_IDN_E4401B "Hewlett-Packard, E4401B"
#define hpESA_IDN_E4411B "Hewlett-Packard, E4411B"
Visession defaultRM, viESA;
ViStatus errStatus;
ViChar cIdBuff[256] = {0};
char cEnter = 0;
int iResult = 0;