HP E4401B, Programmer'S Manual

Page: 114 / 398

3-50 Chapter 3
Programming Examples
Entering Amplitude Correction Data
Entering Amplitude Correction Data
This C programming example does the following:
• Open an HP-IB session at address 18.
• Clear the analyzer.
• Reset the analyzer.
• Set the analyzer stop frequency to 1.5 GHz.
• Set the input port to the 50 MHz amplitude reference.
• Enter amplitude correction frequency/amplitude
pairs:100 MHz/5 dB, 1 GHz/
−
5 dB, 1.5MHz/10 dB.
• Activate amplitude correction.
• Store the array (frequency, amplitude) value into a two-dimensional
real array.
• Query the analyzer for the amplitude correction factors.
• Remove the "," token from the amplitude correction for analyzing
data.
• Display the contents of the array.
• 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;
/*Set the input port to the 50 MHz amplitude reference*/
void Route50MHzSignal()