Using Marker Delta Mode And Marker Minimum Search 3-1 - Agilent Technologies ESA-E Series Programmer's Manual

Programming Examples
Using Marker Delta Mode and Marker Minimum Searc h
Using Marker Delta Mode and Marke r
Minimum Search
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/*
Using Marker Delta Mode and Marker Minimum Search
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/ *
/* This C programming example does the following .
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/*
The SCPI instrument commands used are given a s
/* reference .
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/*
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/* - Opens an HP-IB session at address 18
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/* - Clears the Analyzer
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/* - Resets the Analyzer
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/* *HS T
/* - Set the input port to the 50 MHz amplitude reference
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/* CAL :SOUR :STAT ON
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/* - Set the analyzer to single sweep mode
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/* INIT :CONT 0
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/* - Prompts the user for the start and stop frequencies
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/* - Sets the start and stop frequencies
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/* SENS :FREQ :START freq
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/* SENS :FREQ :STOP freq
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/* - Trigger a sweep
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/* INIT :IMM
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/* - Check for operation complete
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/*
*OPC?
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/* - Set the marker to the maximum peak
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/* CALC :MARK :MAX
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/* - Set the analyzer to activate the delta marker
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/* CALC :MARK :MODE DELT
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/* - Trigger a sweep
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/* INIT :IMM
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/* - Check for operation complete
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/* *OPC?
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/* - Set the marker to the minimum amplitude mode
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/* CALC :MARK :MIN
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/* - Query and read the marker amplitude
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/* CALC :MARK :Y?
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/* - Close the session
*/
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#include <stdio .h >
#include <stdlib .h >
#include <math .h>
3-16 Chapter 3