HP 3325A, 3325B Entry Freq 100 kHz Entry Amptd 13 dBm, Entry Phase, Blue then Asgn Zero Phase

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TB 9-6625-2049-35

(12)Adjust A9R7 Fine Adj. (fig. 3) and A9 Coarse Adj. (fig. 3) for a minimum indication on frequency difference meter.

(13)Disconnect TI from frequency difference meter.

(14)Reconnect TI rear panel 10 MHz OVEN OUTPUT to EXT REF IN.

13.Phase Increment

a.Performance Check

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

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

(b)FUNCTION sine wave.

(c)ENTRY FREQ.

(d)100 kHz.

(e)ENTRY AMPTD.

(f)13 dBm.

(2) Connect equipment as shown in figure 4.

Figure 4. Phase increment - equipment setup.

NOTE

If TI has option 001, remove the connection from 10 MHz

OUTPUT to EXT REF IN (rear panel) (fig. 4).

(3)Set synthesizer/level generator frequency to .1 MHz and amplitude to 13 dBm.

(4)Set frequency counter controls for time interval A to B measurement.

(5)Press keys as listed in (a) through (c) below:

(a)ENTRY PHASE.

(b)MODIFY until frequency counter indicates between 199 and 201 ns.

(c)Blue then ASGN ZERO PHASE.

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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