HP 3325B, 3325A manual Adjustments, SIG Input

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TB 9-6625-2049-35

(15) Set frequency counter controls to measure frequency. If frequency counter does not indicate between 59.99970 and 60.00030 MHz, perform b below.

b. Adjustments

(1) Disconnect TI rear panel 10 MHz OVEN OUTPUT from EXT REF IN option 001 only.

(2)Connect frequency counter CHANNEL A to TI rear panel AUX 21-60 MHz.

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

(a)FUNCTION sine wave.

(b)ENTRY FREQ.

(c)60 MHz.

(4)Adjust REF R30 (fig. 3) until frequency counter indicates 60.000000 MHz (R).

Figure 3. Test instrument - bottom view.

(5)Disconnect frequency counter from TI rear panel AUX 21-60 MHz.

(6)Connect frequency counter CHANNEL A to TI SIGNAL.

(7)Enter 20 MHz using DATA keys. Frequency counter will indicate between 19.99990 and 20.00010 MHz.

(8)Disconnect frequency counter from TI.

(9)Perform (10) through (14) below for option 001 only.

(10)Connect time/frequency workstation OUTPUT 1 MHz to frequency difference meter REF INPUT.

(11)Connect TI rear panel 10 MHz OVEN OUTPUT to frequency difference meter

SIG INPUT.

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Contents Models 3325A and 3325B Section Identification and Description Forms, Records, and ReportsProgrammed amplitude at 1 kHz Section Equipment Requirements Spectrum Analyzer Equipment Setup Section Calibration ProcessPreliminary Instructions Harmonic Distortion a. Performance Check IN/OUTEntry Amptd 20 dBm Entry DC Offset Volt Entry Freq 20 MHz Signal on Entry Freq 25 kHz Entry Amptd Volt 50 Hz Entry Amptd VoltSquare Wave Characteristics Performance Check Amplitude Modulation Distortion a. Performance CheckEntry Freq MHz Entry Amptd Volt Entry DC Offset Entry Freq MHz Entry Amptd RMS Ramp Retrace Performance CheckEntry Freq 10 kHz Entry Amptd Volt Frequency Accuracy Performance Check Entry Freq 20 MHz Entry Amptd VoltEntry Freq 60 MHz Adjustments SIG InputEntry Phase Blue then Asgn Zero PhaseEntry Freq 100 kHz Entry Amptd 13 dBm Sine wave Amplitude and Flatness Performance Check Entry DC Offset VoltEntry Amptd RMS Entry Freq 100 Hz Amptd CAL Entry DC Offset Entry Freq KHz Entry Amptd RMS Amptd CAL Press Entry Amptd keySquare Wave Amplitude and Flatness Performance Check KHz Entry Amptd RMS Amptd CAL Triangle and Ramp Amplitude Performance Check100 Hz Amptd CAL Dc Offset Performance CheckDc Offset with Ac Performance Check High Voltage Output Option 002 only Performance Check Power Supply Entry Freq 100 kHz Entry Amptd RMS Amptd CALEntry Freq KHz Entry Amptd RMS Amptd CAL Final Procedure Power supply assembly A2 test instrument top viewPIN