HP 3325A, 3325B manual Harmonic Distortion a. Performance Check, In/Out

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TB 9-6625-2049-35

8.Harmonic Distortion a. Performance Check

(1)Connect TI EXT REF IN 1, 10 MHz to spectrum analyzer 10 MHz REF

IN/OUT.

(2)Connect TI SIGNAL to spectrum analyzer INPUT 50Ω.

(3)Press keys and enter values using DATA keys as listed in (a) through (h) below:

(a)SIGNAL off (option 002 not lit).

(b)FUNCTION sine wave.

(c)ENTRY AMPTD.

(d)-20 dBm.

(e)ENTRY DC OFFSET.

(f)0 VOLT.

(g)ENTRY FREQ.

(h)20 MHz.

(4)Adjust spectrum analyzer controls to display 20 MHz fundamental and at least four harmonics. All harmonics will be at least 25 dB below fundamental.

(5)Enter 14 MHz using TI DATA keys. Adjust spectrum analyzer controls to display 14 MHz fundamental and at least four harmonics. All harmonics will be at least 30 dB below fundamental.

(6)Enter 1.9 MHz using TI DATA keys. Adjust spectrum analyzer controls to display 1.9 MHz fundamental and at least four harmonics. All harmonics will be at least

40dB below fundamental.

(7)Enter 190 kHz using TI DATA keys. Adjust spectrum analyzer controls to display 190 kHz fundamental and at least four harmonics. All harmonics will be at least

60dB below fundamental.

(8)Enter 100 kHz using TI DATA keys. Adjust spectrum analyzer controls to display 100 kHz fundamental and at least four harmonics. All harmonics will be at least

60dB below fundamental.

(9)Enter 40 kHz using TI DATA keys. Adjust spectrum analyzer controls to display 40 kHz fundamental and at least four harmonics. All harmonics will be at least 65 dB below fundamental.

(10)Disconnect TI from spectrum analyzer.

(11)Connect TI SIGNAL to audio analyzer INPUT HIGH using 50Ω feedthrough termination.

(12)Press keys and enter values using DATA keys as listed in (a) through (c) below:

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Contents Models 3325A and 3325B Forms, Records, and Reports Section Identification and DescriptionProgrammed amplitude at 1 kHz Section Equipment Requirements Spectrum Analyzer Section Calibration Process Equipment SetupPreliminary Instructions IN/OUT Harmonic Distortion a. Performance CheckEntry Amptd 20 dBm Entry DC Offset Volt Entry Freq 20 MHz 50 Hz Entry Amptd Volt Signal on Entry Freq 25 kHz Entry Amptd VoltAmplitude Modulation Distortion a. Performance Check Square Wave Characteristics Performance CheckEntry Freq MHz Entry Amptd Volt Entry DC Offset Ramp Retrace Performance Check Entry Freq MHz Entry Amptd RMSEntry Freq 10 kHz Entry Amptd Volt Entry Freq 20 MHz Entry Amptd Volt Frequency Accuracy Performance CheckEntry Freq 60 MHz SIG Input AdjustmentsBlue then Asgn Zero Phase Entry PhaseEntry Freq 100 kHz Entry Amptd 13 dBm Entry DC Offset Volt Sine wave Amplitude and Flatness Performance CheckEntry Amptd RMS Entry Freq 100 Hz Amptd CAL Press Entry Amptd key Entry DC Offset Entry Freq KHz Entry Amptd RMS Amptd CALSquare Wave Amplitude and Flatness Performance Check Triangle and Ramp Amplitude Performance Check KHz Entry Amptd RMS Amptd CALDc Offset Performance Check 100 Hz Amptd CALDc Offset with Ac Performance Check High Voltage Output Option 002 only Performance Check Entry Freq 100 kHz Entry Amptd RMS Amptd CAL Power SupplyEntry Freq KHz Entry Amptd RMS Amptd CAL Power supply assembly A2 test instrument top view Final ProcedurePIN
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