HP 8568B Manuel d'utilisateur

Performance Tests andAdjustments ManualHP 8568B Spectrum AnalyzerHEWLETTPACKARDHP Part No. 08568-90118Printed in USASeptember 1993

Figuresl-l. Service Accessories, HP Part Number 08568-60001. .2-l. Center Frequency Accuracy Test Setup...2-2. Center Frequency Readout Error Mea

Test 9. RF GainUncertainty TestStep 6. 2nd LO ShiftMinMeasuredMax-1.0 dB+ 1.0 dB2-78 Performance Tests

Test 10. IF Gain Uncertainty TestTest 10. IF GainUncertainty TestStep 12. Step IF Gain Uncertainty, 10 dB Steps[REFERENCELEVEL]Wm)0-2-10-12-20-22-30 -

Test 10. IF Gain Uncertainty Test[REFERENCE LEVEL-Wm)Deviation(MKR AAmplitudeWV0.0-0.1-0.2-0.3-0.4-0.5-0.6-0.7-0.8-0.9-1.0-1.1-1.2-1.3-1.4-1.5-1.6-1.7

Test 10. IF Gain Uncertainty TestStep 23. Recorded deviations from Step 12.A BReference Level Range: 0 to -70 dBm -80 to -120 dBmLargest Positive Devi

YLkst 11. Log ScaleSwitchingUncertainty TkstStep 6. Log Scale Switching UncertaintySCALE MKR Amplitude(dB/DIV)PW12510Deviation Allowable(WDeviation(W0

Test 12. Amplitude Fidelity TestTest 12. AmplitudeFidelity ‘I&tStep 6. Log Amplitude Fidelity,Frequency12Fidelity ErrorSynthesizer CalibratedMARKE

Test 13. AverageNoise Level Test2-84 Performance Tests

Test 14. Residual Responses TestTest 14. ResidualResponses TestStep 11. Maximum Residual ResponseFrequencyRange500 Hz to 1500 MHzOption 400:500 Hz to

Tkst 15. SpuriousResponses Tkst2125263435DescriptionSecond HarmonicThird HarmonicThird Order Intermodulation Distortion30 MHz input signals, 1 MHz sep

Test 16. Residual FM TestTest 16. ResidualFM TestStep 14. Residual FMIMinIMeasuredIrax]Performance Tests 2-87

3-8. Location of AlA Components ...3-9. CRT Cut-Off Voltage3-10. Waveform at AlA3TP5’ : : : : : : : : : : : : : : :3-11. Discharging the CRT P

Tkst 17.Line-RelatedSidebands TestStep7120Hz (100Hz)180 Hz (150 Hz)240 Hz (200 Hz)7.Option 400 400 Hz800 Hz1200 HzMin1 Measured Max 1-85 dB-85 dB-85 d

Test 18. Calibrator Amplitude Accuracy TestTest 18. CalibratorAmplitudeAccuracy ‘I&tStep 2. CAL OUTPUT AmplitudeMinMeasured Max-10.3 dBm -9.70 dBm

Test 19. FastSweep TimeAccuracy Test (~20ms)Step 11. F&t Sweep Time Accuracy (~20 ms)[SWEEP TIME) Function Generator Frequency(kW5 ms 2.00 kO.022

Test 20. 1st LO Output Amplitude TestTest 20. 1st LOOutput AmplitudeTestStep 4. 1st LO Output LevelPerformance Tests 2-91

Test 21. FrequencyReference ErrorTestISteDDescriDtion1 Min 1 Measured 1 Max 14.Frequency (initial)10.MHz5.Frequency (after 24 hours)10. MHz6.Differenc

3AdjustmentsIntroductionThe procedures in this section are for the adjustment of theinstrument’s electrical performance characteristics.Warning The pr

SafetyConsiderationsAlthough this instrument has been designed in accordance withinternational safety standards, this manual contains information,caut

‘able 3-l. Adjustment Cross ReferenceFunction AdjustedLow VoltageHigh VoltageCRT Display (Standard)CRT Display (Digital Storage)IF GainsLog ScalesBand

RelatedAdjustmentsAny adjustments which interact with, or are related to, otheradjustments are indicated in the adjustments procedures. It isimportant

‘Ihble 3-2. Adjustable ComponentsReferenceDesignatorAlA2C308AlA2R308AlA2R319AlA2R409AlA2R426AlA2R427AlA2R437AlA2R440AlA2R512AlA2R513AlA2R515AlA2R517Al

3-56. 20 MHz Reference Adjustments Setup ...3-57. Location of 20 MHz Reference Adjustments ...3-58. Typical Signal at A16TP3...3-59.

‘Ihble 3-2. Adjustable Components (continued)ReferenceDesignatorA3AlR34AdjustmentNameSWEEP OFFSETAdjustmentNumber25Adjustment FunctionAdjusts digital

‘able 3-2. Adjustable Components (continued)ReferenceDesignatorA4A4C9AdjustmentNameSYMAdjustmentNumber8Adjustment FunctionA4A4C19LC CTR8A4A4C20CTR8A4A

Table 3-2. Adjustable Components (continued)ReferenceDesignatorA4A7C42A4A7R30AdjustmentNameCTR10 Hz AMPTDAdjustmentNumber77Adjustment FunctionCenters

‘Ih.ble 3-2. Adjustable Components (continued)ReferenceDesignatorAGAlORlA6AlOR9A6AlOR12A6AlOR15A6AlOR18A6AlOR21A6AlOR23A6AlOR25A6AlOR27A6AlOR29A6AlOR3

‘Ihble 3-2. Adjustable Components (continued)ReferenceDesignatorA6A12R82A6A12R83A6A12R84A6A12R85A6A12R98A6A12R113A7A2C 1A7A2C2A7A2C3A7A2C4A7A4AlAlClA7

‘lhble 3-2. Adjustable Components (continued)ReferenceAdjustment Adjustment Adjustment FunctionDesignator Name NumberAllA5ClIMPEDANCE16Optimizes sampl

‘Ihble 3-2. Adjustable Components (continued)Reference Adjustment Adjustment Adjustment FunctionDesignatorNameNumberAlA2R31ORTHO3Sets orthogonality of

‘Ihble 3-3. Factory-Selected ComponentsReferenceDesignatorAlA2R9A3AlR72A3A2R17A3A2R2 1A3A3C27A3A3C32A3A3R47A3A3R48A4AlRlOA4A 1 R67A4A2R18A4A2R22A4A2R2

l’hble 3-3. Factory-Selected Components (continued)ReferenceDesignatorA4A3R74A4A3R79A4A3R80A4A3R8 1A4A4ClOA4A4C17A4A4C38A4A4C66A4A4C70A4A4C92A4A4C97A4

‘Ihble 3-3. Factory-Selected Components (continued)ReferenceDesignatorA4A7R13A4A7R23A4A7R24A4A7R34A4A7R35A4A7R45A4A7R46A4A7R56A4A7R57A4A7R60A4A7R66A4A

6-7. IF Section, Bottom View . . . . . . . . . . . . . .6-10Contents-7

Ifable 3-3. Fhctory-Selected Components (continued)ReferenceDesignatorA4A8R19A4A8R24A4A8R26A4A8R29A4A8R30A4A8R34A4A8R36A4A8R36A4A8R52A4A8R55A4A9R3A4A

‘Ihble 3-3. Factory-Selected Components (continued)ReferenceDesignatorA6A9AlR5AGASAlRlCA6A9AlR27A6AlOR86A6AlOR87A6AlOR88A6AlOR89A6AlOR90A6AlOR91A6Al l

‘able 3-3. Factory-Selected Components (continued)Reference Adjustment Range of ValuesFunction of ComponentDesignator Procedure(0 or PF)Al lA4R24348 t

‘able 3-3. Factory-Selected Components (continued)Reference Adjustment Range of ValuesDesignator Procedure(0 or PF)Function of ComponentOption 462A4A7

‘lkble 3-4. Standard Value Replacement CapacitorsrapaType: TubularRange: 1 to 24 pFfilerance: 1 to 9.1 pF = f0.25 pForsType: Dipped MicaRange: 27 to 6

‘lhble 3-5.Standard Value Replacement 0.125 ResistorsResistorsType: Fixed-FilmRange: 10 to 46413 OhmsWattage: 0.125 at 125’CTolerance: fl.O%Value (n)

‘Ihble 3-5.Standard Value Replacement 0.125 Resistors(continued)ResistorsType: Fixed-FilmRange: 10 to 464K OhmsWattage: 0.125 at 125°CValue (0)To1BP P

Table 3-6. Standard Value Replacement 0.5 ResistorsResistorsType: Fixed-FilmRange: 10 to 1.47M OhmsWattage: 0.5 at 125’CValue (fl)BP Part Number‘ant56

Ihble 3-6.Standard Value Replacement 0.5 Resistors(continued)ResistorsValue (0)16.2K17.8K19.6K21.5K23.7K26.lK28.7K31.6K34.8K38.31342.2K46.41351.1K56.2

1. Low-Voltage Power Supply Adjustments1. Low-VoltagePower SupplyAdjustmentsReference IF-Display Section:AlA f15 V RegulatorAlA + 120 V, +5.2 V Regula

lhbles2-l. Performance Test Cross-Reference ...2-2. Center Frequency Readout Error Test Record ...2-3. Wide Span Error ...2-4.

1. Low-Voltage Power Supply Adjustments4. Connect the DVM to AlA6TP3 on the IF-Display Section. DVMindication should be + 15.000 fO.O1O V dc. If the v

1. Low-Voltage Power Supply Adjustments7. Verify that the + 120 V indicator AlA7DS2 (yellow LED) is lit.NoteOn IF-Display Sections serial prefixed 300

1. Low-Voltage Power Supply Adjustmentssupply, therefore, if the +5V supply is out of tolerance, a circuitmalfunction is indicated.17. The -5V indicat

2. High-Voltage Adjustment (SN 3001A and Below)2. High-VoltageAdjustment (SN3001A and Below)NoteNoteReferenceDescriptionWarningThis procedure is for I

2. High-Voltage Adjustment (SN 3001A and Below)DIGITIZINGOSCILLOSCOPEHI-VOLTAGESIGNAL ANALYZERFigure 3-5. High Voltage Adjustment SetupEquipmentDigita

2. High-Voltage Adjustment (SN 3001A and Below)NoteThe accuracy of the high-voltage probe is specified for a probeconnected to a dc voltmeter with 10

2. High-Voltage Adjustment (SN 3001A and Below)WarningWith the protective cover removed in the following step, do notplace hands near the AlA High-Vol

2. High-Voltage Adjustment (SN 3001A and Below)If the calibration factor calculated in step 8 is 0.00099, andAlA3Tl is labeled for -3875 V, then adjus

2. High-Voltage Adjustment (SN 3001A and Below)27. On the oscilloscope press [SHOW].28. Connect the oscilloscope channel 1 probe to AlA3TP5 using a l

2. High-Voltage Adjustment (SN 3001A and Below)34. On the oscilloscope, adjust the channel 1 offset voltage asnecessary to measure the peak-to-peak CR

1General InformationIntroductionWarningInstruments Coveredby this ManualThis HP 8568B Tests and Adjustments Manual contains two sections:Performance T

2. High-Voltage Adjustment (SN 3001A and Below)39. Slowly adjust the front-panel INTENSITY control through itsentire range while monitoring the peak-t

2. High-Voltage Adjustment (SN 3001A and Below)AlA4, and AlA assemblies function properly and do not requirecompensation, proceed directly to adjustme

2. High-Voltage Adjustment (SN 3001A and Below)5. While holding the insulated handle of the screwdriver, touch thegrounded blade to the following conn

2. High-Voltage Adjustment (SN 3004A and Above)2. High-VoltageAdjustment (SN3004A and Above)NoteThis procedure is for IF-Display Sections with serial

2. High-Voltage Adjustment (SN 3004A and Above)EquipmentHigh-VoltageAdjustment ProcedureWarningWarningDigital Voltmeter (DVM)...

2. High-Voltage Adjustment (SN 3004A and Above)AlA HIGH/VOLTAGEREGULATOR/AlABOSl- AlA7TP3- AlA6R103Figure 3-13. Location of High Voltage Adjustments4.

2. High-Voltage Adjustment (SN 3004A and Above)11. Remove the protective cover from the AlA High-VoltageRegulator Assembly. A label should be visible

2. High-Voltage Adjustment (SN 3004A and Above)16. With the front-panel INTENSITY control fully counter clockwise,wait approximately 10 minutes to all

2. High-Voltage Adjustment (SN 3004A and Above)3. Connect one end of a jumper wire (made of insulated wire andtwo alligator clips) to the blade of the

3. Preliminary Display Adjustments (SN 3001A and Below)3. PreliminaryDisplayAdjustments (SN3001A and Below)ReferenceAlAl KeyboardAlA Z-Axis AmplifierA

Operation VerificationA high confidence level in the instrument’s operation can be achievedby running only the Operation Verification Program, since i

3. Preliminary Display Adjustments (SN 3001A and Below)ProcedureX and Y Deflection 1. Connect a 10:1 (10 MQ) divider probe to the oscilloscope’s chann

3. Preliminary Display Adjustments (SN 3001A and Below)A1A5,AlA4-AlA2’- A3A2Figure 3-17. Location of AlA2, AlA4, AlA5, and A3A2R22HF G(lN f f$GA I id“

3. Preliminary Display Adjustments (SN 3001A and Below)16. Three waveforms should be displayed on the oscilloscope, asshown in Figure 3-20. The lower

3. Preliminary Display Adjustments (SN 3001A and Below)19. Connect the oscilloscope’s channel 1 probe to AlA5El and thechannel 4 probe to AlA5E2. See

3. Preliminary Display Adjustments (SN 3001A and Below)28. Set the oscilloscope controls as follows:Press @iK]:Channel 1 . . . . . . . . . . . . . . .

3. PreliminaryDisplayAdjustments (SN3004A and Above)ReferenceAlAl KeyboardAl A2 X, Y, Z Axis AmplifierNote Adjustment Procedure 2, “High-Voltage Adjus

3. Preliminary Display Adjustments (SN 3004A and Above)ProcedureX and Y Deflection1. Connect a 1O:l (10 MQ) divider probe to the oscilloscope’s channe

3. Preliminary Display Adjustments (SN 3004A and Above)AlAA3A2A3AlFigure 3-24. Location of AlA and A3A2TP5OlR127 P120 Cl09 TP105 R227c204R220R217J5GEI

3. Preliminary Display Adjustments (SN 3004A and Above)12. Set the oscilloscope controls as follows:Press[CHAN]:Channel 1...

‘Ihble l-l. Recommended Test Equipment (1 of 5)Critical Specifications forEquipment SubstitutionZecommendedModelFrequency: 10 MHz to 1500 MHzOutput Po

3. Preliminary Display Adjustments (SN 3004A and Above)the combined X deflection voltage applied to the CRT. Use theoscilloscope’s front-panel knob to

19.20.Pulse Response of 21.Control Gate ZAmplifier to BLANKInput 22.23.24.Set the oscilloscope controls as follows:Note25.3. Preliminary Display Adjus

3. Preliminary Display Adjustments (SN 3004A and Above)29. Set the oscilloscope controls as follows:Press (CHAN]:Channel 1 . . . . . . . . . . onampli

4. Final Display Adjustments (SN 3001A and Below)4. Final DisplayAdjustments (SN3001A and Below)ReferenceDescriptionNoteProcedureNoteAlAl KeyboardAlA

4. Final Display Adjustments (SN 3001A and Below)5. For best overall focusing of the display, adjust the followingpotentiometers in the sequence liste

4. Final Display Adjustments (SN 3004A and Above)4. Final DisplayAdjustments (SN3004A and Above)ReferenceDescriptionEquipmentProcedureNoteAlAl Keyboar

4. Final Display Adjustments (SN 3004A and Above)RI20R220R512R513R319R426R437Figure 3-32. Location of Final Display Adjustments on AlA‘Ihble 3-6. Init

8.9.10.11.4. Final Display Adjustments (SN 3004A and Above)For an initial coarse focus, adjust the following potentiometers inthe sequence listed:AlA3

4. Final Display Adjustments (SN 3004A and Above)17. Adjust AlA2R512 ORTHO and the front-panel ALIGN controlto optimize the orientation and appearanc

5. Log Amplifier Adjustments5. Log AmplifierAdjustmentsReferenceRelated PerformanceTestsNoteIF-Display SectionA4A3 Log Amplifier-FilterA4A2 Log Amplif

‘Ihble l-l. Recommended Test Equipment (2 of 5)InstrumentANALYZERSSpectrumAnalyzerSpectrumAnalyzerAC ProbeScalarNetworkAnalyzerDetector(2 required)COU

5. Log Amplifier Adjustments4. Connect DVM to A4AlTPl and DVM ground to the IF casting.Connect the frequency synthesizer to the RF INPUT. Key inCFREQU

5. Log Amplifier AdjustmentsBandpass Filter Amplitude Adjustment9. Connect one end of a jumper wire to A4A3TP8. Connect theother end of the jumper to

5. Log Amplifier Adjustments23. Decrease the frequency synthesizer’s output level 10 dB. PressCREFERENCE LEVEL) 0 dBm, and adjust the frequency synthe

6. Video Processor Adjustments6. Video ProcessorAdjustmentsReferenceRelated PerformanceTestDescriptionIF-Display SectionA4A 1 Video ProcessorLog Scale

6. Video Processor Adjustments6.7.8.9.10.11.12.13.14.15.16.Set step attenuator to 120 dB. DVM indication should be 0.000*0.0005 V dc. (If DVM indicati

6. Video Processor Adjustments22. Decrease reference level to -70 dBm using the step key.23. DVM indication should be +0.200 l 0.002 V dc greater than

7. 3 MHzBandwidth FilterAdjustmentsReferenceIF-Display SectionA4A7 3 MHz Bandwidth FilterRelated PerformanceResolution Bandwidth Switching Uncertainty

Procedure 1.Position instrument upright as shown in Figure 3-37 and removetop cover.2.Set LINE switch to ON and press ~NSTR PRESET).7. 3 MHz Bandwidth

7. 3 MHz Bandwidth Filter Adjustments10. Adjust A4A7C15 CTR for minimum amplitude of signal peak.Adjust A4A7C14 SYM for best symmetry. Repeat adjustme

7. 3 MHz Bandwidth Filter Adjustments25. Adjust A4A7C13 PK for maximum peak-to-peak signal on Channel2 display. See Figure 3-39 for location of adjust

7. 3 MHz Bandwidth Filter Adjustments10 Hz Amplitude Adjustments37.38.39.40.41.42.43.Connect CAL OUTPUT to RF INPUT. Key in [INSTR PRESET),[mj 9, (jEE

8. 21.4 MHz Bandwidth Filter Adjustments8. 21.4 MHzBandwidth FilterAdjustmentsReferenceRelated PerformanceTestsDescriptionIF-Display SectionA4A4 Bandw

8. 21.4 MHz Bandwidth Filter AdjustmentsEquipmentDigital Voltmeter (DVM) . . . . . . . . . . . . . . . . . . . . . . . .HP 3456A10 dB Step Attenuator.

8. 21.4 MHz Bandwidth Filter Adjustments10. Key in CRESBW_) 1 MHz, and ISPAN) 1 MHz.11. Press MARKER CPEAK SEARCH], MARKER a.12. Key in CREsBW) 100 kH

8. 21.4 MHz Bandwidth Filter Adjustments22. Adjust A4A4C73 CTR to center signal on center graticule line.Adjust A4A4C65 SYM for best symmetry of signa

8. 21.4 MHz Bandwidth Filter Adjustments33. Key in t-1 100 kHz, C-1 200 kHz, and MARKER[PEAK SEARCH].34. Adjust A4A8R35 LC to align makers on display.

8. 21.4 MHz Bandwidth Filter Adjustments45.LC46.47.48.49.50.51.52.53.54.55.56.57.58.59.60.61.Adjust A4ABR40 XTAL to align markers on display. MARKERA

62.63.64.65.66.67.8. 21.4 MHz Bandwidth Filter Adjustmentsapproximately -17 kHz (to the left). If unable to achieve a “dip”in signal amplitude, increa

9. 3 dB BandwidthAdjustmentsReferenceRelated PerformanceTestDescriptionIF-Display SectionA4A9 IF ControlResolution Bandwidth Accuracy TestThe CAL OUTP

9. 3 dB Bandwidth AdjustmentsA4A9IF CONTROL\Figure 3-45. Locationof 3dB Bandwidth AdjustmentsA4A39. Press MARKER a. Adjust marker to 3 dB point on opp

@Copyright Hewlett-Packard Company 1993All Rights Reserved. Reproduction, adaptation, or translation withoutprior written permission is prohibited, ex

‘Ihble l-l. Recommended Test Equipment (4 of 5)InstrumentATTENUATORS(Cont’d)20 dBAttenuatorTERMINATIONSTerminationFIWERSLow-PassFilterLow-PassFilterLo

9. 3 dB Bandwidth Adjustments22. CRT MKR A annotation now indicates the 3 dB bandwidth of the300 kHz bandwidth. 3 dB bandwidth should be 300.0 f30.0 k

10. Step Gain and 18.4 MHz Local Oscillator Adjustments10. Step Gain and18.4 MHz LocalOscillatorAdjustmentsReferenceRelated PerformanceTestsDescriptio

10. Step Gain and 18.4 MHz Local Oscillator AdjustmentsEquipmentDigital Voltmeter (DVM)... HP 3456APower Meter...

10. Step Gain and 18.4 MHz Local Oscillator Adjustments10. If A4A5R33 CAL adjustment does not have sufficient range toadjust trace to the top CRT grat

10. Step Gain and 18.4 MHz Local Oscillator Adjustments1 dB Gain Step Checks22. Key in [REFERENCE LEVEL) -19.9 dBm. Set step attenuators to 15dB. Pres

10. Step Gain and 18.4 MHz Local Oscillator AdjustmentsA4A5 STEP GAINR2Cl0 FREOR51+lOV ADJRlO ZERO COARSE C9 “RA4A5Figure 3-49.Location of .l dB Gain

11. Down/UpConverterAdjustmentsReferenceRelated PerformanceTestDescriptionEquipmentProcedureIF-Display SectionA4A6 Down/Up ConverterResolution Bandwid

11. Down/Up Converter Adjustments6. Adjust A4A6AlR29 WIDE GAIN to align markers on CRT display.MKR A level should indicate 1.00 X. See Figure 3-51 fo

11. Down/Up Converter AdjustmentsDown Converter GainAdjustmentNoteIf a gain problem is suspected in the 10 Hz to 1 kHz resolutionbandwidths, perform t

12. Time Base Adjustment (SN 2840A and Below, also 3217A05568 and Above)12. Time BaseAdjustment (SN2840A and Below,also 3217AO5568and Above)Reference

‘Ihble l-l. Recommended Test Equipment (5 of 5)Instrument Critical Specifications for Recommended Perf. Adj aEquipment Substitution ModelTestCABLESCab

12. Time Base Adjustment (SN 2840A and Below, also 3217A05568 and Above)ProcedureNoteThe spectrum analyzer must be ON continuously (not in STANDBY) f

12. Time Base Adjustment (SN 2840A and Below, also 3217A05568 and Above)6. Set the Frequency Counter controls as follows:INPUT. . . . . . . . . . . .

12. Time Base Adjustment (SN 2840A and Below, also 3217A05568 and Above)14.15.16.Reading 11:mHzSubtract the shifted frequency reading in step 11 from

12. Time Base Adjustment (SN 2848A to 3217A05567)12. Time BaseAdjustment (SN2848A to3217A05567)ReferenceRelated PerformanceTestDescriptionEquipmentPro

12. Time Base Adjustment (SN 2848A to 3217A05567)The A27A2 10 MHz Quartz Crystal Oscillator (HP P/N 1081 l-601 11)typically reaches its specified agin

12. Time Base Adjustment (SN 2848A to 3217A05567)INT/EXT switch (rear panel) . . . . . . . . . . . . . . . . . . . . . EXT7. On the Frequency Counter,

12. Time Base Adjustment (SN 2848A to 3217A05567)15. On the Frequency Counter, select a 1 second gate time bypressing, t-1 1 @Y%YiK]. The Frequency Co

13. 20 MHz Reference Adjustments13. 20 MHzReferenceAdjustmentsReferenceRelated PerformanceTestDescriptionEquipmentRF Section:Al6 20 MHz ReferenceCalib

13. 20 MHz Reference AdjustmentsProcedure1. Position instrument on right side as shown in Figure 3-56 andremove bottom cover. Remove Al6 20 MHz Refere

13. 20 MHz Reference Adjustments8566AB Spectrum Analyzer (CENTER FREQUENCY_) to 20.34 MHz andSCALE to 10 dB/division.10. Adjust Al6 20.34 MHz NULL A16

DescriptionExtenderBoard:20contacts;2rowsof10Cable: 4-foot long; BNC to SMB snap-onPC Board: Display Adjustment TestExtenderBoard:30contacts;2rowsof15

13. 20 MHz Reference AdjustmentsPress &K?@Press CnTavj:AVmarkers. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ..onVmarker 1.

14. 249 MHz Phase Lock Oscillator Adjustments14. 249 MHz PhaseLock OscillatorAdjustmentsReferenceDescriptionEquipmentRF Section:A7 249 MHz Phase Lock

14. 249 MHz Phase Lock Oscillator AdjustmentsProcedure 1.Place instrument on right side with IF-Display Section facing rightas shown in Figure 3-59.2.

15.16.17.18.19.20.14. 249 MHz Phase Lock Oscillator AdjustmentsSet LINE switch to STANDBY. Adjust A7L2 one-half turncounterclockwise before placing A7

15. 275 MHz Phase Lock Oscillator AdjustmentA18 275 MHzPHASE LOCK OSCILLATOR-10-UI1C8 PLO,ADJUSTA18Figure 3-62. Location of 275 MHz PLO Adjustment7. D

16. Second IFAmplifier andThird ConverterAdjustmentReferenceRF Section:A19 Second IF AmplifierA20 Third ConverterDescriptionA synthesized sweeper is u

ProcedureSecond IF AmplifierAdjustments16. Second IF Amplifier and Third Converter AdjustmentAdapters:Type N (f) to APC-3.5 (f) . . . . . . . . . . .

16. Second IF Amplifier and Third Converter Adjustment14.15.16.17.See Figure 3-65 for the typical response when the bandpass filteris properly adjuste

16. Second IF Amplifier and Third Converter AdjustmentNotePlace the Markers as accurately as possible within the cursor markersfor maximum frequency a

2Performance TkstsIntroductionThe procedures in this section test the instrument’s electricalperformance using the Specifications in the Installation

16. Second IF Amplifier and Third Converter Adjustment17. Pilot Second IFAmplif’ierAdjustmentsReferenceRF Section:A9 Pilot Second IF AmplifierA10 Pilo

17. Pilot Second IF Amplifier AdjustmentsProcedure1. Position instrument on right side as shown in Figure 3-67, withbottom cover removed.2. Set LINE s

17. Pilot Second IF Amplifier AdjustmentsA9 PILOTA10 PILOT2ND IF AMPLIFIER3RD CONVERTER\ I/269MHz BANDPASS FILTERFigure 3-68.Location of 269 MHz Bandp

18. Frequency Control Adjustments18. FrequencyControlAdjustmentsReferenceRelated PerformanceTestsDescriptionEquipmentProcedureRF Section:A22 Frequency

18. Frequency Control AdjustmentsA22FREOUENCY CONTROLSTARTFM SPANSTOPTILTYTO-SD VT0TlJNE REFREFFASTA22Figure 3-71. Location of Frequency Control Adjus

18. Frequency Control AdjustmentsFull Sweep11. Repeat Start-Up Time Measurement procedure in step 8 and step 9Adjustmentfor (SWEEP TIME) of 20 ms. Not

18. Frequency Control AdjustmentsSTART and STOPAdjustmentsFM SPAN Adjustment30.22.23.Key in (ml [CF STEP SIZE) J 1023 Hz.Adjust A22 LSD VT0 A22R7 for

19. Second Converter Adjustments19. SecondConverterAdjustmentsReferenceRF Section:A23 RF ConverterRelated PerformanceRF Gain Uncertainty TestTestSpuri

19. Second Converter AdjustmentsProcedureSecond LO Frequency3. Set HP 8568B Spectrum Analyzer LINE to ON and pressand Shift Adjustments(JNSTR PRESET].

19. Second Converter Adjustments9. Readjust A23A3 2ND MIXER A23A3Z4 for maximum powerindication.10. Disconnect the amplifier’s input from A23A3J3 and

Equipment Required Equipment required for the manual performance tests andadjustments is listed in ‘Ihble 2-1, Recommended Test Equipment,at the begin

19. Second Converter AdjustmentsSecond Converter27. Key in m (JJ) T, [FREQUENCY SPAN] 0 Hz.Bandpass FilterAdjustments28. On the synthesized sweeper, k

19. Second Converter AdjustmentsFigure 3-74. Typical PILOT 2ND IF Bandpass (SHIFT t)Figure 3-75. Typical PILOT 2ND IF Bandpass (SHIFT 1)42. Key in [*]

19. Second Converter Adjustments48. Disconnect cable connected to A23A3J2 and connect to A23A3Jl(1ST IF IN). Reconnect semi-rigid cable to A23A3J2 tha

19. Second Converter AdjustmentsSecond Converter53. Repeat steps 14 through 19 to ensure that Second LO frequencyFinal Adjustmentsand shift are still

20. 50 MHzVoltage-TunedOscillatorAdjustmentsReferenceRelated PerformanceTestDescriptionEquipmentProcedureRF Section:All 50 MHz Voltage-Tuned Oscillato

20. 50 MHz Voltage-Tuned Oscillator AdjustmentsDACS Accuracy Check3. Connect DVM to A22TP9 and ground lead to A22TP12.4. Key in [SHIFT) [CF STEP SIZE]

20. 50 MHz Voltage-Tuned Oscillator Adjustments14. Adjust All POS SUPPLY AllR6 for a DVM indication the same asthat noted in step 12. See Figure 3-79

2 1. Slope Compensation Adjustments21. SlopeCompensationAdjustmentsReferenceRF Section:A22 Frequency ControlRelated PerformanceTestFrequency Response

2 1. Slope Compensation AdjustmentsProcedure1. Place instrument on right side as show in Figure 3-80, and removebottom cover.2. Connect equipment as s

21. Slope Compensation AdjustmentsNoteAt this sweep time, some trace discontinuities are common.14. Adjust A22R66 TILT for best flatness (clockwise ro

1. Center Frequency Readout Accuracy Test1. CenterFrequency ReadoutAccuracy ‘I&tRelated AdjustmentsSpecification(uncorrected)DescriptionFrequency

22. CombGeneratorAdjustmentsReferenceRF Section:A23 RF ConverterAl6 20 MHz ReferenceDescriptionThe output of the Pilot First Converter is connected to

22. Comb Generator AdjustmentsEquipmentCable, SMA (m) to SMA (m) . . . . . . . . . . . . . . . HP 85680-20094Procedure 1.2.3.4.5.6.7.8.9.10.11.12.13.S

22. Comb Generator Adjustmentsa typical comb tooth display. See Figure 3-83 for location ofadjustments.14. The majority of the comb teeth should be ab

23. Analog-To-Digital Converter Adjustments23.Analog-To-DigitalConverterAdjustmentsReferenceDescriptionEquipmentA3A8 Analog-to-Digital ConverterThe An

23. Analog-To-Digital Converter AdjustmentsProcedure 1. Position instrument upright as shown in Figure 3-85 and removetop cover.2. Set LINE switch to

23. Analog-To-Digital Converter Adjustments1. Adjust A3A8R5 GAIN for a square wave displayed on theoscilloscope. The square wave should be approximate

24. Track and HoldAdjustmentsReferenceA3A9 Track and HoldDescription The CAL OUTPUT signal is connected to the RF INPUT. Theinstrument is placed in ze

24. Track and Hold AdjustmentsA6AS ~EOM4LR ESA6A9AlRllCAL ADJII10.11.TRIFc29RI1‘LER MATCH CAL OUTPUTRlOA6A9AlFigure 3-88. Location of Track and Hold A

24. Track and Hold Adjustments24. Adjust A3A9R52 GNEG for MARKER A level indication asindicated by CRT annotation of 100 ho.1 dB.25. Repeat steps 4 th

25. Digital Storage Display Adjustments25. Digital StorageDisplayAdjustmentsReferenceDescriptionEquipmentProcedurePreliminary GraticuleAdjustmentsA3A

1. Center Frequency Readout Accuracy TestEquipmentSynthesized Sweeper . . . . . . . . . HP 8340AFrequency Standard . 10 MHz standard, accy within + 1

25.DigitalStorage Display AdjustmentsA-IA?A3A3A3AlINTENSITYLINETRIGGER CONTROLGENERATOR!12R51R50-HRESH Y 8 & H BALX S & H BAIA3A2A3A3R34SWP OF

25. Digital Storage Display AdjustmentsSample and Hold13. Set LINE switch to STANDBY.Balance Adjustments14. Place A3A3 Line Generator on extender boar

25. Digital Storage Display Adjustments20.21.22.23.24.Set LINE switch to ON.X and Y Offset and 25.Gain Adjustments 26,27.Press (INSTR PRESET).Key in [

25. Digital Storage Display Adjustments41. Adjust A3A3R5 Y GAIN to align the top graticule line with thefast sweep signal trace.Final Graticule42. Pre

Low-Noise DCThe Low-Noise DC Supply shown in Figure 3-93 can be constructedSUPPlYusing the parts listed in ‘Ikble 3-7.Figure 3-93. Low-Noise DC Supply

Crystal Filter Bypass Network ConfigurationCrystal FilterBypass NetworkConfigurationThe Crystal Filter Bypass Network Configuration shown in Figure 3-

Option 462IntroductionThis chapter contains modified performance tests and adjustmentprocedures for Option 462 instruments. When working on Option462

4. 6 dB ResolutionBandwidthAccuracy TestRelated AdjustmentSpecificationDescriptionEquipmentProcedure6 dB Bandwidth Adjustments&20%, 3 MHz bandwidt

4. Impulse andResolutionBandwidthAccuracy TestRelated Adjustment Impulse Bandwidth AdjustmentsSpecification*20%, 3 MHz bandwidthflO%, 1 MHz to 1 kHz b

1. Center Frequency Readout Accuracy TestNoteSpectrum analyzer center frequency readout can fall outside ofspecified limits if 10 MHz frequency refere

4. Impulse and Resolution Bandwidth Accuracy Test17.18.19.20.21.22.23.24.25.26.27.28.29.30.31.32.Tl to 30 kHz. On theSet the frequency synthesizer (FR

4. Impulse and Resolution Bandwidth Accuracy TestNote 6 dB resolution bandwidth measurements are used in PerformanceTest 5, Impulse and Resolution Ban

4. Impulse and Resolution Bandwidth Accuracy Test‘Ihble 4-3. 6 dB Resolution Bandwidth AccuracyResBW3 MHz (i)1 MHz (i)300 kHz (i)100 kHz (i)30 kHz (i)

5. 6 dB ResolutionBandwidthSelectivity TestRelated AdjustmentsSpecificationDescriptionEquipmentNoteProcedure3 MHz Bandwidth Filter Adjustments21.4 MHz

7.8.9.10.rp105. 6 dB Resolution Bandwidth Selectivity TestVary spectrum analyzer settings according to Table 4-4. PressSWEEP @KZF] and measure the 60

5. 6 dB Resolution Bandwidth Selectivity Test‘Ikble 4-4. 6 dB Resolution Bandwidth Selectivityr3 MHz1 MHz300 kHz100 kHz30 kHz10 kHz3 kHz1 kHz300 Hz100

5. Impulse and Resolution Bandwidth Selectivity TestHKR P ieREF 0.0 aBmAl-TEN 10 d0-0.10 aw4.04 HHZ30 a0//\I.Figure 4-5. 60 dB Bandwidth Measurement4.

2. Frequency SpanAccuracy lkstRelated AdjustmentsFrequency Control Adjustments50 MHz Voltage-Tuned Oscillator AdjustmentsSpecificationSpan>l MHz51

5. Impulse and Resolution Bandwidth Selectivity Test‘Ihble 4-5. Impulse and Resolution Bandwidth SelectivitySpectrum AnalyzerMeasured Measured Bandwid

6. Impulse andResolutionBandwidthSwitchingUncertainty TkstRelated AdjustmentSpecificationDescriptionEquipmentProcedure3 MHz Bandwidth Filter Adjustmen

6. Impulse and Resolution Bandwidth Switching Uncertainty TestMKR A 0 HZrpREF53.0 d0mATTEN 10 d80.00 dBIII I IIIIIIIldB’ t-H+I I I I I I I\MAR <ER

Test 4. 6 dBResolutionBandwidthAccuracy Test (p/o‘lhble 2-19,Performance TestRecord)‘RES)3MHz1MHz300kHz100kHz30kHz10kHz3kHz1kHz300Hz100Hz30Hz10HzStep

@ai--3MHz(i)1MHz(i)300kHz(i)100kHz(i)30kHz(i)10kHz(i)3kHz(i)1kHz(i)3MHz3MHz3MHz1MHz300kHz100kHz30kHz10kHzTest 4. Impulse and Resolution Bandwidth Accu

Test 4. Impulse and Resolution Bandwidth Accuracy Test (p/o ‘Ihble 2-19, Performance Test Record)Steps 39 through 46. 6 dB Resolution BandwidthAccurac

Test 5. 6 dB Resolution Bandwidth Selectivity (p/o lkble 2-19, Performance Test Record)Test 5. 6 dBResolutionBandwidthSelectivity (p/o‘lhble 2-19,Perf

Test 5. Impulseand ResolutionBandwidthSelectivity (p/oI)dble 2-19,Performance T&tRecord)Steps 5 through 9. Impulse and Resolution BandwidthSelecti

Test 6. Impulse and Resolution Bandwidth Switching Uncertainty (p/o ‘Ikble 2-19, Performace Test Record)-‘l&t 6. Impulseand ResolutionBandwidthSwi

9. 6 dB ResolutionBandwidthAdjustmentsReferenceRelated PerformanceTestDescriptionEquipmentProcedureIF-Display SectionA4A9 IF Control6 dB Resolution Ba

EquipmentProcedureSpectrunFrequent y&an200HzIOOkHz100.1 kHz1MHz1.01 MHz20MHz20.1 MHz1.5 GHzAnalyzerCenterFrequent y100MHz100MHz100MHz100MHz100MHz1

9. 6 dB Resolution Bandwidth Adjustments13. Using the DATA knob, adjust the marker down one side of thedisplay signal to the 6 dB point; CRT MKR A ann

9. 6 dB Resolution Bandwidth Adjustments24.25.26.27.28.29.30.31.32.33.34.Press MARKER IOFF), then MARKER In].Using the DATA knob, adjust the marker do

9. Impulse Bandwidth Adjustments9. ImpulseBandwidthAdjustmentsReferenceRelated PerformanceTestDescriptionEquipmentProcedureIF-Display SectionA4A9 IF C

9. Impulse Bandwidth Adjustments13. Using the DATA knob, adjust the marker down one side ofthe display signal to the 7.3 dB point; CRT MKR A annotatio

9. Impulse Bandwidth Adjustments[REFERENCE LEVEL] and using the DATA knob to place the signalpeak near the top of the graticule.24. Press MARKER IOFF)

5Option 857IntroductionThis chapter contains a modified performance test for Option 857instruments. When working on Option 857 instruments, substitute

12. Option 857Amplitude FidelityTestRelated AdjustmentLog Amplifier AdjustmentsSpecificationLog:IncrementalfO.l dB/dB over 0 to 80 dB displayCumulativ

12. Option 857 Amplitude Fidelity TestEquipment Frequency Synthesizer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . HP 3335AAda

12. Option 857 AmplitudeFidelity Test‘Ikble 5-1. Log Amplitude Fidelity (10 Hz RBW; Option 857)Frequency 1 2 Fidelity Error CumulativeCumulativeSynthe

12. Option 857 Amplitude Fidelity TestFrequency1SynthesizerCalibratedAmplitudeAmplitude(dBm)Step+lO0 (ref)0-10-10 -20-20 -30-30 -40-40 -50-50-60-60-70

CertificationHewlett-Packard Company certifies that this product met itspublished specifications at the time of shipment from the factory.Hewlett-Pack

2. Frequency Span Accuracy TestFreq Spanr-1 1.5 GHz-34,500.OOO Hz ] 34,500O.OOO Hz‘Ihble 2-4. Span Error-I-SDan ErrorADUT-ASynfrom ‘Ihble 2-3-ISpec.M

12. Option 857 Amplitude Fidelity Test‘lhble 5-3. Linear Amplitude FidelityFrequency MARKER AAllowable RangeSynthesizer Amplitude (413% of Reference L

Performance TestRecordHewlett-Packard CompanyModel HP 8568BSerial No.IF-Display SectionRF SectionTested byReport No.DateOption 857 5-7

Test 12. Option857 AmplitudeFidelity TestStep 9. Log Amplitude Fidelity (10 Bz RBW; Option 857)Frequency1SynthesizerCalibratedAmplitudeAmplitudeWWStep

Test 12. Option 857 Amplitude Fidelity TestStep 26. Linear Amplitude FidelityFrequency MARKER AAllowable RangeSynthesizer Amplitude (1t3% of Reference

6Major Assembly and Component LocationsIF-Display SectionFigure IndexAssemblySee FigureAlAl...6-6AlA...

W24...6-7W25...6-7W26...

A26F2...6-3A26F3 ...6-3A26F4 ...

w43/cc5c4c3c2Figure 6-l. RF Section, Top ViewA266-4Major Assembly and Component locations

423A2w14 w3w43w31427ASAA543W2 45A2A5A 1A5AlJl W42A5Rl( INPUT SELECT)(KEYBOARD)Figure 6-2. RF Section, Front ViewMajor Assembly and Component locations

A26Fl F2 F3 F4 F5-15v-5v+2ov +5v1 5A3A1 .5A6A+;I$0102040305UlIWI4A5i4 A?4 A533 AiAl 1d9A5’J 1AiSlFigure 6-3. RF Section, Bottom View6-6Major Assembly

3. Sweep Time Accuracy Test (220 ms)3. Sweep TimeAccuracy Test (220ms)Related AdjustmentFrequency Control AdjustmentsSpecification*lo% for sweep times

AlAlOC2AlAlOC3AlAW7w21AlAAIAI 1W6w21AlAAlVlAlAFigure6-4. IF Section, Top View (SN 3001A and Below)AlAlOClAlAlOC4 \AlA AlA A\.\ \ I‘ir8AlAFLiAITIA4A9A4

AlAlOClAlAlOC4AlAlOC2AlAlOC3w21AlAAlVlAlAAlAAlA AlAlASFl 1AITIA4A3A4A8A4A7A4A6A4A5A4A4A4A3A4A2A4Ali ‘A3Al0>00Figure 6-5. IF Section, Top View (SN 3

AlVlFigure 6-6. IF Section, Front View,w3w9Major Assembly and Component locations6-9

AlAlOI /’ AAA4AlOW8A3AlO/ IW24w23Figure 6-7. IF Section, Bottom View/w2g/W24/W28‘W23‘W32(SN 3004Aand above)\AlVl6-10Major Assembly and Component locat

3. Sweep Time Accuracy Test (220 ms)EquipmentUniversal Counter ...HP 5316ADigital Voltmeter...

3. Sweep Time Accuracy Test (220 ms)NOTE:PULSE WIDTH APPROXIMATE+15v-r-lt-SWEEP RETRACErlJIt-ACTIVE SNEEP +ov- ---1 L---START+TI”ESTOPhEINTERVALINTERV

3. Sweep Time Accuracy Test (220 ms)‘Ihble 2-6.Sweep Time Accuracy, Sweep Times 220 s[SWEEP TIME) Marker A TimeMin Measured Max20 s 3.6 s 4.4 s200 s 3

4. Resolution Bandwidth Accuracy Test4. ResolutionBandwidthAccuracy TestRelated AdjustmentSpecificationDescriptionEquipmentProcedure(For instruments w

4. Resolution Bandwidth Accuracy TestFigure 2-6. Resolution Bandwidth Measurement8. Vary spectrum analyzer settings according to ‘fable 2-8. Measureth

5. Resolution Bandwidth Selectivity Test6. Read the 60 dB bandwidth for the 3 MHz resolution bandwidthsetting from the MARKER A frequency readout (see

5. Resolution Bandwidth Selectivity Test‘lhble 2-9. Resolution Bandwidth SelectivitySpectrum Analyzer Measured Measured Bandwidth MaximumRES] (FREQUEN

AssistanceProduct maintenance agreements and other customer assistanceagreements are available for Hewlett-Rwkard products.Fbr any assistance, contact

6. ResolutionBandwidthSwitchingUncertainty TestRelated AdjustmentsSpecificationDescriptionEquipmentProcedure(For instruments with Option 462, refer to

6. Resolution Bandwidth Switching Uncertainty TestFigure 2-8. Bandwidth Switching Uncertainty Measurement‘Ihble 2-10. Bandwidth Switching Uncertainty1

7. Input Attenuator Switching Uncertainty Test6. Press MARKER CPEAK SEARCH),(KJ7. Set [~~J’JREFERENCE LEVEL], and frequency synthesizeramplitude accor

8. FrequencyResponse TestRelated AdjustmentSpecificationDescriptionSYNTHESIZED SWEEPERSlope Compensation AdjustmentSIGNAL INPUT 1~tl.5 dB, 100 Hz to 1

8. Frequency Response TestNoteEquipment listed is for three test setups, Figure 2-11, Figure 2-13, andFigure 2-15.EquipmentSynthesized Sweeper ...

8. Frequency Response Test7.8.9.Key in the following spectrum analyzer settings:10.Press TRACE A [MAX) on the analyzer.11.Press SWEEP SINGLE on the sy

8. Frequency Response TestOption 001: Set [REFERENCE LEVEL] TO -6.0 dBm.15. Repeat steps 6 through 11. Press DISPLAY LINE [ENTER) on thespectrum analy

8. Frequency Response Test25. After completion of sweep, press DISPLAY LINE (j?KiK] on thespectrum analyzer. Use the Display Line to measure the maxim

Safety SymbolsCautionWarningThe following safety symbols are used throughout this manual.Familiarize yourself with each of the symbols and its meaning

8. Frequency Response Test100Hzto100kHz 32.33.34.35.36.37.38.39.40.41.Press (INSTR PRESET) on the spectrum analyzer. Activate SIGNALINPUT 1.Key in the

8. Frequency Response Test42. Press DISPLAY LINE [ENTER] on the spectrum analyzer. Use theDisplay Line to measure the maximum and minimum points onthe

8. Frequency Response Test49. For each input, subtract the lowest minimum level (greatestnegative) from the highest maximum (least negative)measuremen

9. RF Gain Uncertainty Testh/I1 II\ I-Figure 2-16. RF Gain Uncertainty Measurement2-32 Performance Tests

10. IF Gain Uncertainty Test10. IF GainUncertainty TestRelated AdjustmentsStep Gain and 18.4 MHz Local Oscillator Adjustments21.4 MHz Bandwidth Filter

10. IF Gain Uncertainty TestEquipment Frequency Synthesizer...HP 3335AAdapter, Type N (m) to BNC (f)...

10. IF Gain Uncertainty Test‘Ihble 2-12. IF Gain Uncertainty, 10 dB Steps[REFERENCE LEVEL)Pm)0-10-20-30-40-50-60-70-80 -32-90-42-100-52-110-62-120-72F

10. IF Gain Uncertainty Test2 dB Gain Steps13. Press QNSTR pREsETj,(jRECALL) 7.14. Set [REFERENCE LEVEL] to -1.9 dBm.15. Press MARKER (OFF). Set CVlD

10. IF Gain Uncertainty Test0.1 dB Gain Steps19. Set [REFERENCE LEVEL) to 0 dB.20. Set the frequency synthesizer for an output power level of -2.00dBm

HP 8568BSpectrum AnalyzerDocumentationOutlineHP 8568B Installationand VerificationManualHP 8568B Operatingand ProgrammingManualHP 8568BPerformance Tes

10. IF Gain Uncertainty Test‘Ihble 2-14. IF Gain Uncertainty, 0.1 dB Steps[REFERENCE LEVEL) Frequency DeviationPm)Synthesizer (MKR AAmplitude Amplitu

11. Log Scale Switching Uncertainty TestHKA 100.001 B MHZHKA 100.001 B MHZbbREP -9.8 dmlREP -9.8 dmlATTEN 10 deATTEN 10 dB-a.a2 *em-a.a2 *em2 dB/2 dB/

12. Amplitude Fidelity Test12. AmplitudeFidelity Test(For instruments with Option 857, refer to Chapter 5.)Related AdjustmentLog Amplifier Adjustments

12. Amplitude Fidelity TestEquipment Frequency Synthesizer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . HP 3335AAdapter, Type

12. Amplitude Fidelity Test8. The fidelity error for amplitude steps from -10 dB to -80 dBshould be <& 1.0 dB.9. The fidelity error at the -90

12. Amplitude Fidelity Test‘Ihble 2-17. Linear Amplitude FidelityFrequency MARKER A Allowable RangeSynthesizer Amplitude (f3 % of Reference Level)Amp

13. Average Noise Level Test13. Average NoiseLevel TkstSpecificationDescriptionEquipmentProcedurec-135 dBm for frequencies >I MHz, c-112 dBm for fr

13. Average Noise Level TestFigure 2-23. Average Noise Level Measurement9. Read the average noise level from the DISPLAY LINE readout.The value should

14. Residual Responses Test14. ResidualResponses TestSpecificationDescriptionEquipmentProcedurec-105 dBm for frequencies >500 Hz with 0 dB input at

Contents1. General InformationIntroduction...Instruments Covered by this Manual...Operation Verification...Option

14. Residual Responses Test9.10.11.Figure 2-24. Residual Responses MeasurementPress SWEEP [SINGLE_) and wait for completion of sweep. Look forany resi

15. Spurious Responses Test15. SpuriousResponses TestRelated AdjustmentSecond Converter AdjustmentsSpecificationFor total signal power of c-40 dBm at

15. Spurious Responses TestSPECTRUM ANALYZERSYNTHESIZED SMEEPEA10 DBATTENUATOR300 MHZLPFJFigure 2-25. Harmonic Distortion Test SetupNoteEquipment list

15. Spurious Responses Testsignal for a marker indication of -20.00 dBm (-30.0 dBm at theinput mixer with 10 dBm of input attenuation).6On the spectru

15. Spurious Responses TestIntermodulationDistortionSPECTRUM ANALYZERATTENUATORATTENUATORDIRECTIONAL50 MHz LONPASS FILTERFigure 2-26. Intermodulation

15. Spurious Responses Test-0-10-20zEi.i-30z3 -40Q2-50-60-70NoteIf unable to locate intermodulation distortion products, temporarilyincrease output po

15. Spurious Responses Test24. On the frequency synthesizer, readjust the signal amplitude asnecessary to position the peak of the displayed 29.99 MHz

15. Spurious Responses Test35. On the spectrum analyzer, key in [CENTER FREQUENCY] 59 MHz,MARKER [PEAK SEARCH) to position a second marker at the peak

16. Residual FMTestSpecification<3 Hz peak-to-peak in 110 s; frequency span ~100 kHz, resolutionbandwidth 530 Hz, video bandwidth 530 Hz.Descriptio

16. Residual FM TesthrRF -I... L1uFigure 2-28. Bandwidth Filter Slope Measurement8. Compute the detection slope of the 30 Hz filter between themarkers

3.Test 11. Log Scale Switching Uncertainty Test...Test 12. Amplitude Fidelity Test...Test 13. Average Noise Level Test...Test 14. Resi

16. Residual FM TestFigure 2-29. Slope Detected Residual FM11. Press SWEEP CRINGLE) and wait for completion of the sweep.12. Press MARKER [PEAK SEARCH

16. Residual FM Test13. Press MARKER Ia] and position movable marker at the lowestpoint on the trace (see Figure 2-30). Read the MARKER Aamplitude fro

17. Line-RelatedSidebands TestsSpecification95 dB below the peak of a CW signal. Option $00: >75 dB belowthe peak of a CW signal.Description The sp

Option 400 1.2.3.Press ONSTR PRESET).4.Key in the following analyzer settings:5.6.7.17. Line-Related Sidebands TestsFigure 2-31. Line Related Sideband

18. CalibratorAmplitudeAccuracy TestRelated Adjustment20 MHz Reference AdjustmentsSpecification-10 dBm f0.3 dBDescriptionThe output level of the calib

19. Fast Sweep Time Accuracy Test (~20 ms)19. Fast SweepTime AccuracyTest (430 ms)Related Adjustment NoneSpecification&lo% for sweep times 5100 se

19. Fast Sweep Time Accuracy Test (~20 ms)5. Press MARKER (PEAK SEARCHJ@~EFZF),~.6. Set [FREQUENCY SPAN) to 0 Hz, (j-1 to 3 MHz, [VlDEoBW) to 3MHz, an

19. Fast Sweep Time Accuracy Test (~20 ms)‘able 2-18. Fast Sweep Time Accuracy (~20 ms)[SWEEP TIME] Function Generator Frequency Sweep Time Errorww(di

20. 1st LO OutputAmplitude TestSpecification>+4 dBm from 2.0 GHz to 3.7 GHzDescription The power level at the 1ST LO OUTPUT connected is measured a

21. Frequency Reference Error Test21. FrequencyReference ErrorTestRelated Adjustment Time Base AdjustmentSpecification Aging Rate<l x 10eg/day and

Crystal Filter Bypass Network Configuration . . . . . 3-1514. Option 462Introduction . . . . . . . . . . . . . . . . . . . . .4-l4. 6 dB Resolution Ba

‘lhble 2-19.Performance TkstRecordHewlett-Packard CompanyModel HP 8568BSerial No.IF-Display SectionRF SectionTested byReport No.DatePerformance Tests

Tkst 1. CenterFrequency ReadoutAccuracy TestStep 8. Center Frequency Readout Error Test RecordCombSpectrum AnalyzerGeneratorCombFrequencyWW[FREQUENCY

Test 2. Frequency Span Accuracy Test‘I&t 2. FrequencySpan Accuracy Testrn,1SpectrumkequencySpan200 Hz100kHz100.1 kHzIMHz1.01 MHz20 MHz20.1 MHz1.5

Test 3. SweepTime AccuracyStep 6. Sweep Time Accuracy, Sweep Times 220 ms[SWEEP TIME)Marker A TimeMinMeasuredMax20 ms18ms 22 ms50 ms45ms 55 ms100 ms90

Test 4. Resolution Bandwidth Accuracy‘I&t 4. ResolutionBandwidthAccuracyStep 8. Bandwidth Accuracy/[REW-3MHz1MHz300kHz100kHz30kHz10kHz3kHz1kHz300H

Test 5. ResolutionBandwidthSelectivitySteps 7, 8 and 9. Resolution Bandwidth SelectivitySpectrum Analyler Measured(RES] [FREQUHKYWANJ(VIDEOBW]60 dBBan

Test 6. Resolution Bandwidth Switching Uncertainty Testlkst 6. ResolutionBandwidthSwitchingUncertainty TestStep 6. Bandwidth Switching Uncertainty1 MH

Test 7. InputAttenuatorSwitchingUncertainty Test10203040506070Step 7. Input Attenuator Switching Uncertainty(REFERENCE LEVEL]ww-50-40-30-20-100+lOFreq

Test 8. Frequency Response TestTest 8. FrequencyResponsg&kep12151625263142484950Signal InputSIGNAL INPUT 2(20 MHz to 1.5 GHz)SIGNAL INPUT 1(20 MHz