Agilent Technologies Model A.08.xx manual

Programming Examples

Entering Amplitude Correction Data

/*No of amplitude corrections points */ iNoOfPoints = 4;

/* Open a GPIB session at address 18*/ viStatus=viOpenDefaultRM(&defaultRM); viStatus=viOpen(defaultRM,"GPIB0::18",VI_NULL,VI_NULL,&viESA); if(viStatus)

{

printf("Could not open a session to GPIB device at address 18!\n"); exit(0);

}

/*Clear the instrument*/ viClear(viESA);

/*Reset the instrument*/ viPrintf(viESA,"*RST\n");

/*Display the program heading */

printf("\n\t\t Amplitude Correction Program \n\n" );

/*Set the stop frequency to 1.5 GHz */ viPrintf(viESA,"SENS:FREQ:STOP 1.5 GHz\n");

/* Check for the instrument model number and route the 50MHz signal accordingly*/ Route50MHzSignal();

/* Purge any currently-loaded amplitude correction factors*/ viPrintf(viESA,"SENS:CORR:CSET1:DEL \n");

/* Enter amp cor frequency/amplitude pairs:

0 Hz, 0 dB, 100 MHz, 5 dB, 1 GHz, -5 dB, 1.5GHz,10*/ viPrintf(viESA,"SENS:CORR:CSET1:DATA "); viPrintf(viESA,"0, 0.0,"); viPrintf(viESA,"100.E6, 5.0,"); viPrintf(viESA,"1.E9, -5.0,"); viPrintf(viESA,"1.5E9, 10 \n");

/* Activate amplitude correction. Notice that the noise floor slopes up from 0 Hz to 100 MHz, then downward by 10 dB to 1 GHz, then upwards again by 15 dB to 1.5 GHz.*/

viPrintf(viESA,"SENS:CORR:CSET1:STATE ON \n"); viPrintf(viESA,"SENS:CORR:CSET:ALL:STAT ON \n");

/*Query the analyzer for its amplitude correction factors */ viQueryf(viESA,"SENS:CORR:CSET1:DATA?" , "%s" , &cResult);

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