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Measuring Harmonic Distortion (GPIB)
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/* Measuring Harmonic Distortion (GPIB)
/*
/* This example is for the E44xxB ESA Spectrum Analyzers
/* and E740xA EMC Analyzers.
/*
/* This C programming example does the following.
/* The SCPI instrument commands used are given as
/* reference.
/*
/* - Opens a GPIB session at address 18
/* - Clears the Analyzer
/*
*CLS
/* - Resets the Analyzer
/*
*RST
/* - Set the input port to the 50 MHz reference
/*
CAL:SOUR:STAT ON
/* - Set the analyzer center frequency to the fundamental
/*
SENS:FREQ:CENT freq
/* - Set the analyzer to 10 MHz span
/*
SENS:FREQ:SPAN 10 MHZ
/* - Set the analyzer to single sweep mode
/*
INIT:CONT 0
/* - Take a sweep and wait for sweep completion
/*
INIT:IMM;*WAI
/* - Perform the peak search
/*
CALC:MARK:MAX
/* - Set the marker to reference level
/*
CALC:MARK:SET:RLEV
/* - Take a sweep and wait for sweep completion
/*
INIT:IMM;*WAI
/* - Perform the peak search
/*
CALC:MARK:MAX
/* - Change VISA timeout to 60 seconds
/* - Activate signal track
/*
CALC:MARK:TRCK:STAT ON
/* - Perform narrow span and wait
/*
SENS:FREQ:SPAN 10e4
/* - Check for operation complete
/*
*OPC?
/* - De-activate signal track
/*
CALC:MARK:TRCK:STAT OFF
Chapter 3
Programming Examples
Measuring Harmonic Distortion (GPIB)
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