Page 3 - Warranty; that; the
Hewlett-Packard Company certifies that this product met itspublished specifications at the time of shipment from the factory.Hewlett-Packard further certifies that its calibration measurements are traceable to the United States National Institute of Standards and Technology, to the extent allowed by...
Page 4 - Assistance; Product maintenance agreements and other customer assistance
Assistance Product maintenance agreements and other customer assistance agreements are available for products. any assistance, contact your nearest Sales and Service
Page 5 - Safety Symbols; Caution; General Safety; Warning
Safety Symbols Caution Warning The following safety symbols are used throughout this manual.Familiarize yourself with each of the symbols and its meaning before operating this instrument. The caution sign denotes a hazard. It calls attention to a procedure which, if not correctly performed or adhere...
Page 6 - Included with the HP Model; v i
HP Spectrum Analyzer Documentation Outline HP Installation and Verification Manual HP Operating and Programming Manual HP Performance and Adjustments Manual HP RF Section Troubleshooting and Repair Manual HP IF-Display Section Troubleshooting and Repair Manual Included with the HP Model Spectrum Ana...
Page 7 - General Information
1. General Information Introduction . . . . . . . . . . . . . . . . . . . . . Instruments Covered by this Manual . . . . . . . . . Operation Verification . . . . . . . . . . . . . . . .Option 462 Instruments . . . . . . . . . . . . . . .Option 857 Instruments . . . . . . . . . . . . . . . 2. Perform...
Page 8 - Adjustments
3. Test 11. Log Scale Switching Uncertainty Test . . . . Test 12. Amplitude Fidelity Test . . . . . . . . . . .Test 13. Average Noise Level Test . . . . . . . . . .Test 14. Residual Responses Test . . . . . . . . . . .Test 15. Spurious Responses Test . . . . . . . . . . Test 16. Residual FM Test . ....
Page 9 - Major Assembly and Component Locations
Crystal Filter Bypass Network Configuration . . . . . 3-151 4. Option 462 Introduction . . . . . . . . . . . . . . . . . . . . . 4. 6 Resolution Bandwidth Accuracy Test . . . . . 4-2 4. Impulse and Resolution Bandwidth Accuracy Test . 4-4 5. 6 Resolution Bandwidth Selectivity Test . . . . 4-10 5. Im...
Page 15 - Introduction; G e n e r a l I n f o r m a t i o n
Introduction Warning Instruments Covered by this Manual This HP Tests and Adjustments Manual contains two sections: Performance Tests and Adjustments Procedures. The Performance Tests provided should be performed for the following reasons: If the test equipment for the Operation Verification Program...
Page 17 - G e n e r a l I n f o r m a t i o n 1 - 3
l-l. Recommended Test Equipment (1 of 5) Critical Specifications for Equipment Substitution Model Frequency: 10 MHz to 1500 MHz Output Power: + 10 maximum (leveled) Aging Rate: x Spurious Signals: HP Amplitude Modulation: dc to 100 Leveling: Internal, External Power Meter Frequency: 20 MHz to 450 MH...
Page 23 - Verification of; P e r f o r m a n c e T e s t s
Introduction The procedures in this section test the instrument’s electricalperformance using the Specifications in the Installation and Verification Manual as the performance standards. None of the tests require access to the interior of the instrument. The manual Performance Tests provided in this...
Page 24 - Function or Characteristic Tested Test Performance Test; - 2 P e r f o r m a n c e T e s t s
Equipment Required Equipment required for the manual performance tests andadjustments is listed in 2-1, Recommended Test Equipment, at the beginning of this manual. Any equipment that satisfies thecritical specifications given in the list may be substituted for therecommended model. Test Record The ...
Page 25 - Center Frequency Readout Accuracy; Frequency Readout; Related Adjustments; Setup
1. Center Frequency Readout Accuracy 1. Center Frequency Readout Accuracy Related Adjustments Specification (uncorrected) Description Frequency Control Adjustments Time Base Adjustment Step Gain and 18.4 MHz Local Oscillator Adjustments 50 MHz Voltage-Tuned Oscillator Adjustments of frequency span +...
Page 26 - Center Frequency Readout Accuracy Test; Equipment; shown in; Figure 2-2. Center Frequency Readout Error Measurement; - 4 P e r f o r m a n c e T e s t s
1. Center Frequency Readout Accuracy Test Equipment Synthesized Sweeper . . . . . . . . . HP Frequency Standard . 10 MHz standard, within 1 part in e.g. HP Adapter, Type N (m) to SMA (f) . . . HP1250-1250 61 cm (24 in.) Cable Assembly, SMA Male Connectors HP 5061-1086 Procedure 1. 2 . 3 . 4 . 5 . 6 ...
Page 27 - Note; P e r f o r m a n c e T e s t s 2 - 5
1. Center Frequency Readout Accuracy Note Spectrum analyzer center frequency readout can fall outside ofspecified limits if 10 MHz frequency reference has not been calibratedwithin the past year. To eliminate “frequency reference error xtune frequency” term, substitute spectrum analyzer 10 MHz FREQR...
Page 28 - Accuracy; Span; Description; each; Span Assembly Being Swept
2. Frequency Span Accuracy Related Adjustments Frequency Control Adjustments 50 MHz Voltage-Tuned Oscillator Adjustments Specification Span MHz MHz Uncertainty of the actual frequency separation between two points of span setting) of the actual frequency separation between two points of span setting...
Page 29 - Frequency Span Accuracy Test; I I I; I I; P e r f o r m a n c e T e s t s 2 - 7
Equipment Procedure y 100.1 1.01 MHz 20.1 MHz 1.5 Analyzer Center y 100 MHz 100 MHz 100 MHz 100 MHz 100 MHz 100 MHz 900 MHz 2. Frequency Span Accuracy Test Synthesized Sweeper ..................................................................... AdapterTypeN(m) to SMA(f)................................
Page 30 - For spans 1 MHz, the; - 8 P e r f o r m a n c e T e s t s
2. Frequency Span Accuracy Freq Span 1 . 5 Hz Hz 2-4. Span Error Error ADUT-ASyn from 2-3 Min Max - 1 0 H z 1 0 H z - 5 0 0 0 H z 5000 H z - 5 , 0 0 5 H z 5,005 H z - 5 0 , 0 0 0 Hz 50,000 H z - 2 3 , 2 3 0 H z 23,230 H z - 4 6 0 , 0 0 0 H z 460,000 H z- 4 6 2 , 3 0 0 H z 462,300 H z Note The specif...
Page 31 - Sweep Time Accuracy Test; Accuracy Test; Related Adjustment; Preferred Procedure; Alternate Procedure; DIGITAL; Figure 2-4. Sweep Time Accuracy Test Setup; P e r f o r m a n c e T e s t s 2 - 9
3. Sweep Time Accuracy Test ms) 3. Sweep Time Accuracy Test Related Adjustment Frequency Control Adjustments Specification for sweep times seconds for sweep times seconds Description Preferred Procedure This test is for sweep times ms. For faster sweep times, refer to Fast Sweep Time Accuracy Test (...
Page 32 - Sweep Time Accuracy
3. Sweep Time Accuracy ms) Equipment Universal Counter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . HP Digital Voltmeter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . HP Procedure Sweep Times ms 1. Connect equipment as sh...
Page 34 - Sweep Times; Measurement; Sweep Time; ms; - 1 2 P e r f o r m a n c e T e s t s
3. Sweep Time Accuracy Test ms) 2-6. Sweep Time Accuracy, Sweep Times s [ S W E E P T I M E ) Marker A Time Min Measured Max 20 s 3.6 s 4.4 s 200 s 32 s 48 s Sweep Times ms 14. Sweep times ms are tested without external test equipment (Alternate Procedure) by the following procedure. 15. Press Start...
Page 35 - Resolution Bandwidth Accuracy; Bandwidth
4. Resolution Bandwidth Accuracy 4. Resolution Bandwidth Accuracy Test Related Adjustment Specification Description Equipment Procedure (For instruments with Option 462, refer to Chapter 4.) Bandwidth Adjustments 3 MHz 3 to 1 MHz 10 Hz to 1 30 and 100 bandwidth accuracy figures apply only with Relat...
Page 36 - - 1 4 P e r f o r m a n c e T e s t s
4. Resolution Bandwidth Accuracy Test Figure 2-6. Resolution Bandwidth Measurement 8. Vary spectrum analyzer settings according to 2-8. Measure the 3 bandwidth for each resolution bandwidth setting by the procedure of steps 6 and 7 and record the value in 2-8. The measured bandwidth should fall betw...
Page 38 - - 1 6 P e r f o r m a n c e T e s t s
5. Resolution Bandwidth Selectivity Test 6. Read the 60 bandwidth for the 3 MHz resolution bandwidth setting from the MARKER A frequency readout (see Figure 2-7)and record the value in 2-9. 7. Vary spectrum analyzer settings according to Table 2-9. Measure the 60 bandwidth for each resolution bandwi...
Page 39 - Selectivity Selectivity Ratio; P e r f o r m a n c e T e s t s 2 - 1 7
5. Resolution Bandwidth Selectivity Test 2-9. Resolution Bandwidth Selectivity Spectrum Analyzer Measured Measured Bandwidth Maximum ( F R E Q U E N C Y S P A N ) 3 Selectivity Selectivity Ratio Bandwidth Bandwidth (60 BW 3 MHz 20 MHz 100 Hz 1 MHz 15 MHz 300 Hz 300 5 MHz AUTO 100 2 MHz AUTO 30 500 A...
Page 40 - - 1 8 P e r f o r m a n c e T e s t s
6. Resolution Bandwidth Switching Uncertainty Test Related Adjustments Specification Description Equipment Procedure (For instruments with Option 462, refer to Chapter 4.) 3 MHz Bandwidth Filter Adjustments 21.4 MHz Bandwidth Filter Adjustments Down/Up ConverterAdjustments (uncorrected; referenced t...
Page 43 - Set; and frequency synthesizer; and record the deviation from the 10; P e r f o r m a n c e T e s t s 2 - 2 1
7. Input Attenuator Switching Uncertainty 6. Press MARKER 7. Set LEVEL ], and frequency synthesizer amplitude according to 1. At each setting, press MARKER ( PEAK SEARCH ) and record the deviation from the 10 setting from the MARKER A amplitude readout (see Figure 2-10). The deviationshould not exce...
Page 44 - Response Test; Slope Compensation Adjustment; - 2 2 P e r f o r m a n c e T e s t s
8. Frequency Response Test Related Adjustment Specification Description SYNTHESIZED SWEEPER Slope Compensation Adjustment SIGNAL INPUT 1 100 Hz to 1.5 100 Hz to 500 MHz SIGNAL INPUT 2 100 to 1.5 Frequency response at both analyzer inputs is tested by slowlysweeping a flat signal source over the freq...
Page 45 - Frequency Response Test
8. Frequency Response Test Note Equipment listed is for three test setups, Figure 2-11, Figure 2-13, and Figure 2-15. Equipment Synthesized Sweeper . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . HP Power Meter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ....
Page 46 - - 2 4 P e r f o r m a n c e T e s t s
8. Frequency Response Test 7. 8. 9 . Key in the following spectrum analyzer settings: 10. Press TRACE A on the analyzer. 11. Press SWEEP SINGLE on the synthesized sweeper. Adjust POWER LEVEL on synthesized sweeper (using data knob)to place peak of 20 MHz signal near reference level (top) graticuleli...
Page 47 - Option; P e r f o r m a n c e T e s t s 2 - 2 5
8. Frequency Response Test Option 001: Set [ REFERENCE LEVEL ] TO -6.0 15. Repeat steps 6 through 11. Press DISPLAY LINE on the spectrum analyzer. Use the Display Line to measure the maximumand minimum points on the trace. Record measurements below. SIGNAL INPUT 1 (20 MHz to 1.5 Maximum Minimum 16. ...
Page 49 - Frequency Response
8. Frequency Response 25. After completion of sweep, press DISPLAY LINE on the spectrum analyzer. Use the Display Line to measure the maximumand minimum points on the trace. Record the measurements below. SIGNAL INPUT 1 (100 to 20 MHz) Maximum Minimum 26. Measure and record signal level at start of ...
Page 51 - P e r f o r m a n c e T e s t s 2 - 2 9
8. Frequency Response 42. Press DISPLAY LINE on the spectrum analyzer. Use the Display Line to measure the maximum and minimum points onthe trace. (Disregard LO Feedthrough at 1 Record the measurements below. SIGNAL INPUT 1 (1 to 100 Maximum Minimum 43. Set Display Line to peak of trace at 1 44. Key...
Page 54 - - 3 2 P e r f o r m a n c e T e s t s
9. RF Gain Uncertainty Test h Figure 2-16. RF Gain Uncertainty Measurement 2 - 3 2 P e r f o r m a n c e T e s t s
Page 55 - IF Gain Uncertainty; Uncertainty Test; Range; P e r f o r m a n c e T e s t s 2 - 3 3
10. IF Gain Uncertainty 10. IF Gain Uncertainty Test Related Adjustments Step Gain and 18.4 MHz Local Oscillator Adjustments 21.4 MHz Bandwidth Filter Adjustments Specification Assuming the internal calibration signal is used to calibrate thereference level at -10 and the input attenuator is fixed a...
Page 56 - IF Gain Uncertainty Test; MHZ; - 3 4 P e r f o r m a n c e T e s t s
10. IF Gain Uncertainty Test Equipment Frequency Synthesizer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . HP Adapter, Type N (m) to BNC (f) . . . . . . . . . . . . . . . . . . . . . . . . HP 1250-0780 P r o c e d u r e 1 . 2. 3. 4. 10 Gain Steps 5. 6. 7. 8 9 10. 11. 12. ...
Page 57 - P e r f o r m a n c e T e s t s 2 - 3 5
10. IF Gain Uncertainty Test 2-12. IF Gain Uncertainty, 10 Steps [ R E F E R E N C E L E V E L ) 0 -10 - 2 0 - 3 0 - 4 0 - 5 0 - 6 0 - 7 0 - 8 0 - 3 2 - 9 0 - 4 2 - 1 0 0 - 5 2 - 1 1 0 - 6 2 - 1 2 0 - 7 2 Frequency Synthesizer Amplitude - 2 - 1 2 - 2 2 - 3 2 - 4 2 - 5 2 - 6 2 - 7 2 100 100 100 100 1...
Page 58 - Gain Steps; - 3 6 P e r f o r m a n c e T e s t s
10. IF Gain Uncertainty Test 2 Gain Steps 13. Press 7. 14. Set [ REFERENCE to -1.9 15. Press MARKER (OFF). Set to 100 Hz. 16. Set the frequency synthesizer for an output power level of -3.9 Set the amplitude increment for 2 steps. 17. Press MARKER [ PEAK 18. Set the analyzer LEVEL ) and the frequenc...
Page 59 - P e r f o r m a n c e T e s t s 2 - 3 7
10. IF Gain Uncertainty 0.1 Gain Steps 19. Set [ REFERENCE to 0 20. Set the frequency synthesizer for an output power level of -2.00 Set the amplitude increment for 0.1 steps. 21. Press MARKER [ PEAK 22. Set the analyzer and the frequency synthesizer amplitude according to 2-14. At each setting, not...
Page 60 - F r e q u e n c y Deviation; should not exceed 1.0; . 3 8 P e r f o r m a n c e T e s t s
10. IF Gain Uncertainty 2-14. IF Gain Uncertainty, 0.1 Steps [ R E F E R E N C E L E V E L ) F r e q u e n c y Deviation Synthesizer (MKR A Amplitude Amplitude 0.0 - 2 . 0 0 0 (ref) - 0 . 1 - 2 . 1 0 - 0 . 2 - 2 . 2 0 - 0 . 3 - 2 . 3 0 - 0 . 4 - 2 . 4 0 - 0 . 5 - 2 . 5 0 - 0 . 6 - 2 . 6 0 - 0 . 7 - ...
Page 63 - Amplitude Fidelity; Fidelity Test; Figure 2-21. Amplitude Fidelity Test Setup
12. Amplitude Fidelity 12. Amplitude Fidelity Test (For instruments with Option 857, refer to Chapter 5.) Related Adjustment Log Amplifier Adjustments Specification Log: Incremental over 0 to 80 display Cumulative 3 MHz to 30 Hz Resolution Bandwidth max over 0 to 80 display (20 1.5 max over 0 to 90 ...
Page 65 - Linear Fidelity; P e r f o r m a n c e T e s t s 2 - 4 3
12. Amplitude Fidelity 8. The fidelity error for amplitude steps from -10 to -80 should be 1.0 9. The fidelity error at the -90 setting should be L I I I I Figure 2-22. Amplitude Fidelity Measurement Linear Fidelity 10. Key in analyzer settings as follows: ..............................................
Page 66 - - 4 4 P e r f o r m a n c e T e s t s
12. Amplitude Fidelity Test 2-17. Linear Amplitude Fidelity Frequency MARKER A Allowable Range Synthesizer Amplitude % of Reference Level) Amplitude Min Max 0 - 1 0 . 8 7 - 9 . 2 1 - 1 0 - 2 3 . 1 0 - 1 7 . 7 2 2 - 4 4 P e r f o r m a n c e T e s t s
Page 67 - Average Noise Level Test; Level; Specification; P e r f o r m a n c e T e s t s 2 - 4 5
13. Average Noise Level Test 13. Average Noise Level Specification Description Equipment Procedure for frequencies MHz, for frequencies MHz but Hz with 10 Hz resolution bandwidth, 0 input attenuation, 1 Hz video filter. Option 001: for frequencies MHz, for frequencies MHz but Hz with 10 Hz resolutio...
Page 68 - to 1501 Mhz. Follow the procedure of; - 4 6 P e r f o r m a n c e T e s t s
13. Average Noise Level Figure 2-23. Average Noise Level Measurement 9. Read the average noise level from the DISPLAY LINE readout. The value should be 10. Change [ CENTER FREQUENCY ) to 1.001 MHz. Follow the procedure to steps 7 through 9 to determine the average noise level. Thevalue should be 11....
Page 69 - Residual Responses; Responses Test; no; P e r f o r m a n c e T e s t s 2 - 4 7
14. Residual Responses 14. Residual Responses Test Specification Description Equipment Procedure for frequencies Hz with 0 input attenuation (no signal present at input) Option 100: for frequencies Hz with 0 input attenuation (SIGNAL INPUT 1 only). Option 400: for frequencies Hz with 0 input attenua...
Page 71 - Spurious Responses Test; Second Harmonic Distortion
15. Spurious Responses Test 15. Spurious Responses Test Related Adjustment Second Converter Adjustments Specification For total signal power of at the input mixer of the analyzer, all image and out-of-band mixing responses, harmonic and intermodulation distortion products are below the total signal ...
Page 72 - Figure 2-25. Harmonic Distortion Test Setup; Harmonic Distortion
15. Spurious Responses Test SPECTRUM ANALYZER SYNTHESIZED ATTENUATOR 300 MHZ LPF Figure 2-25. Harmonic Distortion Test Setup Note Equipment listed is for two test setups, Figure 2-25 and Figure 2-26. Equipment Synthesized Sweeper . . . . . . . . . . . . . . . . . . . . . . . . HP Frequency Synthesiz...
Page 73 - on
15. Spurious Responses Test signal for a marker indication of -20.00 (-30.0 at the input mixer with 10 of input attenuation). 6 On the spectrum analyzer, key in MARKER FREQUENCY ) 560 MHz, MARKER SEARCH ) to position a second marker on the peak of the second harmonic distortion product of the 280 MH...
Page 74 - Intermodulation
15. Spurious Responses Test Intermodulation Distortion Figure 2-26. Intermodulation Distortion Setup 11. Connect equipment as shown in Figure 2-26. 12. Set the controls of the spectrum analyzer as follows: CENTER FREQUENCY . . . . . . . . . . . . . . . . . . . . . . . . . . . 29.5 MHzFREQUENCY SPAN ...
Page 75 - Spurious Responses; Figure 2-27. Intermodulation Distortion Products
15. Spurious Responses - 0 - 1 0 - 2 0 - 3 0 3 - 4 0 - 5 0 - 6 0 - 7 0 Note If unable to locate intermodulation distortion products, temporarily increase output power level of frequency synthesizer and synthesized sweeper by 10 Return the output power level of both signal sources to the previous set...
Page 76 - RKE; - 5 4 P e r f o r m a n c e T e s t s
15. Spurious Responses 24. On the frequency synthesizer, readjust the signal amplitude as necessary to position the peak of the displayed 29.99 MHz signal at the top CRT graticule line. 25. On the spectrum analyzer, key in MARKER (CENTER FR E QUENCY ) 30.01 MHz, MARKER ( PEAK SEARCH ) to position a ...
Page 77 - MARKER; to position a second marker at the peak; P e r f o r m a n c e T e s t s 2 - 5 5
15. Spurious Responses 35. On the spectrum analyzer, key in [ CENTER FREQUENCY ] 59 MHz, MARKER [ PEAK SEARCH ) to position a second marker at the peak of the 59 MHz second-order intermodulation distortion product. The response should be below the display line below the total input power). Distortio...
Page 78 - Test; - 5 6 P e r f o r m a n c e T e s t s
16. Residual FM Test Specification Hz peak-to-peak in s; frequency span resolution bandwidth Hz, video bandwidth Hz. Description The spectrum analyzer CAL OUTPUT is used to supply a stable 20MHz signal to the analyzer. The analyzer is tuned in zero span to a point on the 30 Hz bandwidth response for...
Page 79 - necessary, to position the trace at the center graticule line. The
16. Residual FM Test Figure 2-28. Bandwidth Filter Slope Measurement 8. Compute the detection slope of the 30 Hz filter between the markers by dividing the MARKER A amplitude by the MARKER Afrequency: filter slope = MARKER A amplitude/MARKER Afrequency = 9. Press SWEEP 10. Change SPAN ] to 0 Hz. Rea...
Page 80 - and wait for completion of the sweep.; Press DISPLAY LINE; - 5 8 P e r f o r m a n c e T e s t s
16. Residual FM Test Figure 2-29. Slope Detected Residual FM 11. Press SWEEP and wait for completion of the sweep. 12. Press MARKER [ PEAK SEARCH _). Press DISPLAY LINE and position the display line at the lowest point on the trace. Figure 2-30. Peak-to-Peak Amplitude Measurement 2 - 5 8 P e r f o r...
Page 82 - Sidebands Tests
17. Line-Related Sidebands Tests Specification below the peak of a CW signal. Option below the peak of a CW signal. Description The spectrally pure calibrator signal of the spectrum analyzer is applied to the analyzer input and the line related sidebands near thesignal are measured. Equipment None r...
Page 83 - P e r f o r m a n c e T e s t s 2 - 6 1
O p t i o n 4 0 0 2. 3. Press 4. Key in the following analyzer settings: 5. 6. 7. 17. Line-Related Sidebands Figure 2-31. Line Related Sidebands Measurement Press PRESET ]. Connect CAL OUTPUT to SIGNAL INPUT 2. Press 8 and adjust AMPTD CAL for a MARKER amplitude of -10. 00 l FREQUENCY] . . . . . . ....
Page 84 - 0 MHz Reference Adjustments; The output level of the calibrator signal is measured with a power; Measure output level of the CAL OUTPUT signal. The value should; - 6 2 P e r f o r m a n c e T e s t s
18. Calibrator Amplitude Accuracy Related Adjustment 20 MHz Reference Adjustments Specification -10 Description The output level of the calibrator signal is measured with a power meter. Figure 2-32. Calibrator Amplitude Accuracy Setup Equipment Power Meter . . . . . . . . . . . . . . . . . . . . . ....
Page 85 - Fast Sweep Time Accuracy Test; Time Accuracy; Sweep Time Accuracy; P e r f o r m a n c e T e s t s 2 - 6 3
19. Fast Sweep Time Accuracy Test ms) 19. Fast Sweep Time Accuracy Test ms) Related Adjustment None Specification for sweep times seconds Description The triangular wave output of a function generator is used tomodulate a 500 MHz signal which is applied to the spectrum analyzer SIGNAL INPUT. The sig...
Page 86 - Figure 2-34. Fast Sweep Time Measurement; - 6 4 P e r f o r m a n c e T e s t s
19. Fast Sweep Time Accuracy Test ms) 5. Press MARKER ( PEAK 6. Set [ FREQUENCY SPAN ) to 0 Hz, to 3 MHz, to 3 MHz, and press TRIGGER 7. Set synthesized sweeper for an amplitude-modulated output. 8. Set function generator controls as follows: FUNCTION . . . . . . . . . . . . . . . . . . . . . . . . ...
Page 87 - Function Generator Frequency Sweep Time Error; P e r f o r m a n c e T e s t s 2 - 6 5
19. Fast Sweep Time Accuracy Test ms) 2-18. Fast Sweep Time Accuracy ms) [ SWEEP TIME ] Function Generator Frequency Sweep Time Error (divisions) 5 ms 2.00 2 ms 5.00 1 ms 10.0 200 50.0 100 100 P e r f o r m a n c e T e s t s 2 - 6 5
Page 88 - LO Output Amplitude Test Setup
20. LO Output Amplitude Test Specification from 2.0 to 3.7 Description The power level at the LO OUTPUT connected is measured as the first L.O. is swept over its 2.0 to 3.1 range. SPECTRUM ANALYZER POWER METER Figure 2-35. LO Output Amplitude Test Setup Equipment Power Meter . . . . . . . . . . . . ...
Page 89 - Frequency Reference Error; Reference Error; P e r f o r m a n c e T e s t s 2 - 6 7
21. Frequency Reference Error 21. Frequency Reference Error Test Related Adjustment Time Base Adjustment Specification Aging Rate x and x year; attained after 30 days warmup from cold start at Temperature Stability x 0” to Frequency is within 1 x of final stabilized frequency within 30 minutes. Desc...
Page 91 - Hewlett-Packard Company; Performance Tests 2-69
2-19. Performance Record Hewlett-Packard Company Model HP Serial No. IF-Display Section RF Section Tested by Report No. Date Performance Tests 2-69
Page 92 - EXT TRIG
1. Center Frequency Readout Accuracy Test Step 8. Center Frequency Readout Error Test Record Comb Spectrum Analyzer Generator Comb Frequency [ C E N T E R 100 MC EXT TRIG (1, 2, 5, or 10 MHz) trigger signal 1 100 MHz 100 100 MHz 500 100 MHz 1000 10 MHz 100 10 MHz 500 10 MHz 1000 10 MHz 1500 1 MHz 10...
Page 93 - Span Accuracy Test; Hz; Performance Tests 2-71
2. Frequency Span Accuracy 2. Frequency Span Accuracy Test r 1 Spectrum Span 200 Hz 100.1 1.01 MHz 20 MHz 20.1 MHz 1.5 Steps 7, 9, and 11. Wide Span Error Analyzer Synthesized Sweeper DUT Measured Center Freq. A Freq. B A Synth Freq. C Freq. D A DUT Frequency span cf + span 100 MHz 99.999 910 MHz 10...
Page 94 - -72 Performance Tests
Test 3. Sweep Time Accuracy Step 6. Sweep Time Accuracy, Sweep Times ms [ S W E E P T I M E ) Marker A Time Min Measured Max 20 ms 18 ms 22 ms 50 ms 45 ms 55 ms 100 ms 90 ms 110 ms 500 ms 450 ms 550 ms 900 ms 1.10 Step 12. Sweep Time Accuracy, Sweep Times s Step 19. Sweep Time Accuracy, Sweep Times ...
Page 95 - Performance Tests 2-73
4. Resolution Bandwidth Accuracy 4. Resolution Bandwidth Accuracy Step 8. Bandwidth Accuracy [ F R E Q U E N C Y S P A N ) 2 MHz 2 500 Hz MARKER A Readout of 3 Min Measured 2.400 MHz 270.0 90.0 27.00 9.00 2.700 d 3 Bandwidth Max 3.600 MHz 1.100 MHz 330.0 110.0 33.00 11.00 3.300 1.200 36 Hz 12 Hz Per...
Page 96 - -74 Performance Tests
Test 5. Resolution Bandwidth Selectivity Steps 7, 8 and 9. Resolution Bandwidth Selectivity Spectrum Measured (VIDEOBW] 6 0 Bandwidth Measured Bandwidth Maximum 3 Selectivity Selectivity Ratio Bandwidth (60 BW 3 BW) 3 MHz 20 MHz 300 5 MHz 2 MHz 3 0 500 10 200 3 50 1 10 3 0 0 H z 5 100 Hz 2 3 0 Hz 50...
Page 97 - Test 6. Resolution Bandwidth Switching Uncertainty Test; Step 6. Bandwidth Switching Uncertainty; Performance Tests 2-75
Test 6. Resolution Bandwidth Switching Uncertainty Test 6. Resolution Bandwidth Switching Uncertainty Test Step 6. Bandwidth Switching Uncertainty 1 MHz 3 MHz 300 100 30 10 3 1 300 Hz 100 Hz 30 Hz 10 Hz ‘FREQUENCY SPAN] 5 MHz 5 MHz 5 MHz 500 500 50 50 10 1 1 200 Hz 100 Hz Deviation (MKR A Readout, 0...
Page 98 - - 7 6 P e r f o r m a n c e T e s t s
Test 7. Input Attenuator Switching Uncertainty Test 1 0 20 30 4 0 50 6 0 7 0 Step 7. Input Attenuator Switching Uncertainty ( R E F E R E N C E L E V E L ] - 5 0 - 4 0 - 3 0 - 2 0 - 1 0 0 Frequency Synthesizer Amplitude - 5 2 - 4 2 - 3 2 - 2 2 - 1 2 - 2 8 Deviation (MARKER A Amplitude 0 (ref) Correc...
Page 99 - Test 8. Frequency Response; Respons; Signal Input; Performance Tests 2-77
Test 8. Frequency Response 8. Frequency Respons 12 1 5 16 2 5 2 6 3 1 4 2 48 49 50 Signal Input SIGNAL INPUT 2 (20 MHz to 1.5 SIGNAL INPUT 1 (20 MHz to 1.5 SIGNAL INPUT 1 (20 MHz to 500 MHz) SIGNAL INPUT 1 (100 to 20 MHz) SIGNAL INPUT 1 (100 SIGNAL INPUT 2 (100 to 20 MHz) SIGNAL INPUT 1 (1 to 100 SI...
Page 100 - LO Shift; -78 Performance Tests
Test 9. RF Gain Uncertainty Test Step 6. LO Shift Min Measured Max - 1 . 0 + 1.0 2-78 Performance Tests
Page 101 - Performance Tests 2-79
Test 10. IF Gain Uncertainty Test Test 10. IF Gain Uncertainty Test Step 12. Step IF Gain Uncertainty, 10 Steps 0 - 2 - 1 0 - 1 2 - 2 0 - 2 2 - 3 0 - 3 2 - 4 0 - 4 2 - 5 0 - 5 2 - 6 0 - 6 2 - 7 0 - 7 2 - 8 0 - 3 2 - 9 0 - 4 2 - 1 0 0 - 5 2 - 1 1 0 - 6 2 - 1 2 0 - 7 2 Frequency Synthesizer Amplitude ...
Page 104 - Step 6. Log Scale Switching Uncertainty; - 8 2 P e r f o r m a n c e T e s t s
11. Log Scale Switching Uncertainty Step 6. Log Scale Switching Uncertainty SCALE MKR Amplitude (dB/DIV) 1 2 5 1 0 Deviation Allowable Deviation 0 (ref) 0 (ref) 2 - 8 2 P e r f o r m a n c e T e s t s
Page 105 - Fidelity; Performance Tests 2-83
Test 12. Amplitude Fidelity Test 12. Amplitude Fidelity Step 6. Log Amplitude Fidelity Frequency 1 2 Fidelity Error Synthesizer Calibrated MARKER A Amplitude (Column 2 Column A m p l i t u d e A m p l i t u d e Step 0 (ref) 0 (ref) 0 (ref) 0 - 1 0 - 1 0 - 2 0 - 2 0 - 3 0 - 3 0 - 4 0 - 4 0 - 5 0 - 5 ...
Page 106 - Noise Level Test; -84 Performance Tests
Test 13. Average Noise Level Test 2-84 Performance Tests
Page 107 - Performance Tests 2-85
14. Residual Responses Test 14. Residual Responses Test Step 11. Maximum Residual Response Frequency Range 500 Hz to 1500 MHz Option 400: 500 Hz to 2.5 2.5 to 1500 MHz Measured Measured Max Max Amplitude Frequency - 1 0 5 - 9 5 - 1 0 5 Performance Tests 2-85
Page 108 - Responses; - 8 6 P e r f o r m a n c e T e s t s
15. Spurious Responses 2 1 2 5 2 6 3 4 3 5 Description Second Harmonic Third Harmonic Third Order Intermodulation Distortion 30 MHz input signals, 1 MHz separation Third Order Intermodulation Distortion 30 MHz input signals, 1 MHz separation Third Order Intermodulation Distortion 30 MHz input signal...
Page 109 - Test 16. Residual FM; FM Test; Performance Tests 2-87
Test 16. Residual FM Test 16. Residual FM Test Step 14. Residual FM Performance Tests 2-87
Page 110 - Sidebands Test; Step
17. Line-Related Sidebands Test Step 7 120 Hz (100 Hz)180 Hz (150 Hz) 240 Hz (200 Hz) 7. Option 4 0 0 400 Hz 800 Hz 1200 Hz Min M e a s u r e d M a x - 8 5 - 8 5 - 8 5 - 7 5 - 7 5 - 7 5 P e r f o r m a n c e T e s t s
Page 111 - Test 18. Calibrator Amplitude Accuracy Test; Amplitude; Step 2. CAL OUTPUT Amplitude
Test 18. Calibrator Amplitude Accuracy Test Test 18. Calibrator Amplitude Accuracy Step 2. CAL OUTPUT Amplitude Min M e a s u r e d M a x - 1 0 . 3 - 9 . 7 0 P e r f o r m a n c e T e s t s
Page 112 - Function Generator Frequency
19. Fast Sweep Time Accuracy Test Step 11. Sweep Time Accuracy ms) [ SWEEP Function Generator Frequency 5 ms 2.00 2 ms 5.00 1 ms 10.0 200 50.0 100 100 P e r f o r m a n c e T e s t s
Page 113 - LO Output Amplitude; LO; LO Output Level
Test 20. LO Output Amplitude Test 20. LO Output Amplitude Step 4. LO Output Level P e r f o r m a n c e T e s t s
Page 114 - Min Measured Max; MHz; - 9 2 P e r f o r m a n c e T e s t s
Test 21. Frequency Reference Error Test Min Measured Max 1 4. Frequency (initial) 10. MHz 5. Frequency (after 24 hours) 10. MHz 6. Difference b e t w e e n 4 and 5 H z 0.01 H z 2 - 9 2 P e r f o r m a n c e T e s t s
Page 115 - The procedures in this section are for the adjustment of the; The procedures require access to the interior of the instrument; Safety Considerations; in this introduction.; The adjustment procedures should not be performed as routine
Introduction The procedures in this section are for the adjustment of the instrument’s electrical performance characteristics. Warning The procedures require access to the interior of the instrument and therefore should only be performed by qualified service personnel. Refer to Safety Considerations...
Page 116 - The equipment required for the adjustment procedures is listed; Adjustment Tools; - 2 A d j u s t m e n t s
Safety Considerations Although this instrument has been designed in accordance withinternational safety standards, this manual contains information,cautions, and warnings which must be followed to ensure safe operations and to retain the instrument in safe condition. Service andadjustments should be...
Page 117 - Components
Adjustment Cross Reference Function Adjusted Low VoltageHigh Voltage CRT Display (Standard) CRT Display (Digital Storage)IF Gains Log ScalesBandwidth Amplitudes 3 Bandwidth 10 MHz Internal Time Base CAL OUTPUT LevelPhase Lock Loops Adjustment Procedure 1. Low Voltage Power Supply Adjustments 2. High...
Page 118 - Any adjustments which interact with, or are related to, other; Location of; Illustrations showing the locations of assemblies containing; - 4 A d j u s t m e n t s
Related Adjustments Any adjustments which interact with, or are related to, other adjustments are indicated in the adjustments procedures. It is important that adjustments so noted are performed in the orderindicated to ensure that the instrument meets specifications. Location of Points and Adjustme...
Page 119 - A d j u s t m e n t s
3-2. Adjustable Components Reference Designator Adjustment Name ZHF GAIN INT GAIN FOCUS COMP T/B FOC T/B CTRR/L FOCR/L CTR ORTHO INTENSITY LIMIT ASTIG FOCUS LIMIT X POSN X GAIN XHF GAIN Y POSN Y GAIN YHF GAIN + 15 ADJ HV ADJUST Adjustment Number 333 3 333 3 3 3 3 3 3 3 3 1 2 Adjustment Function Adju...
Page 122 - - 8 A d j u s t m e n t s
3-2. Adjustable Components (continued) Reference Designator Adjustment Name CTR 10 Hz AMPTD Adjustment Number 7 7 Adjustment Function Centers 3 MHz bandwidth filter pole Adjusts 3 MHz bandwidth filter 10 Hz bandwidth amplitude. 1 10 Hz AMPTD 7 Adjusts 3 MHz bandwidth filter 10 Hz bandwidth amplitude...
Page 123 - A d j u s t m e n t s 3 - 9
3-2. Adjustable Components (continued) Reference Designator 1 1 Adjustment Name IO VEVD v c VB G A GBG C GDG E GF A l B l C l E l GAIN D l 5.8 2 Adjustment Number 21 2 1 2121212 12 12 12 12 12 12 12 12 12 12 12 121 2 1 2 1 2 1 212 12 12 12 12 12 12 12 1 2 12 12 12 12 1 Adjustment Function Adjusts 3....
Page 126 - - 1 2 A d j u s t m e n t s
3-2. Adjustable Components (continued) Reference Adjustment Adjustment Adjustment Function Designator Name Number ORTHO 3 Sets orthogonality of CRT. PATTERN 3 Adjusts for optimum rectangular shape of CRTdisplay. INTENSITY 3 Sets adjustment range of front-panel INTENSITYcontrol. LIMIT ASTIG 3 Adjusts...
Page 127 - A d j u s t m e n t s 3 - 1 3
3-3. Factory-Selected Components Reference Designator 1 1 1 Adjustment Procedure Range of Values 2.87 K to 6.19 K 19.6 K to 42.2 K 121 K to 162 K 10.0 K to 26.1 K Open or 1.0-10.0 1.0 to 10.0 5.0 K to 12.5 K5.0 K to 12.5 K 562 to 1.33 K 56.2 K to 825 K 68.1 to 178 1.96 K to 5.11 K 1 K to 31.6 K 90.9...
Page 128 - - 1 4 A d j u s t m e n t s
3-3. Factory-Selected Components (continued) Reference Designator 1 1 Adjustmenl Procedure 1 0 1 1101 01 0 777 7 7 Range of Values 1.78 K to 13.3 K 8.25 K to 82.5 K 1.0 K to 6.81 K 1 K-OPEN 1.0 to 8.2 180 to 270 1.0 to 8.21.0 to 8.2 180 to 270 180 to 270 180 to 270 13 13 ‘4 to 13 0 to 9.09 3.16 K to...
Page 129 - A d j u s t m e n t s 3 - 1 5
3-3. Factory-Selected Components (continued) Reference Designator 14 1 Adjustment Procedure 10 Range of Values 10.0 K to 17.8 K10.0 K to 17.8 K10.0 K to 17.8 K10.0 K to 17.8 K10.0 K to 17.8 K 10.0 K to 17.8 K10.0 K to 17.8 K 7.50 K to 13.3 K7.50 K to 13.3 K 38.3 to 68.138.3 to 68.1 100 to 178 383 to...
Page 131 - A d j u s t m e n t s 3 - 1 7
3-3. Factory-Selected Components (continued) Reference Designator Adjustment Procedure 1 819 18 2 12 12 12 12 12 1 2 1 21 2 12 12 12 1 1 41 4 14 1 4 1 4 1 17 17 1 71 7 Range of Values 23.7 to 180 909 to 1.21 K Function of Component Sets sampler drive levelSets adjustment range of CAL OUTPUT 56.2 K S...
Page 132 - - 1 8 A d j u s t m e n t s
3-3. Factory-Selected Components (continued) Reference Adjustment Range of Values Function of Component Designator Procedure Al 348 to 562 Sets YTO loop gain crossover to 20 Al 1 6 130 to 220 Sets YTO loop response MHz. 1 6 2.2 to 3.3 Sets YTO loop response. Al 16 15 to 51.1 Sets YTO loop 20 to 30 M...
Page 133 - Sets TC of 1; A d j u s t m e n t s 3 - 1 9
3-3. Factory-Selected Components (continued) Reference Adjustment Range of Values Designator Procedure Function of Component Option 462 5.62 K to 7.5 K5.62 K to 7.5 K5.62 K to 7.5 K5.62 K to 7.5 K5.62 K to 7.5 K 5.62 K to 7.5 K 5.11 K to 6.81 K5.11 K to 6.81 K5.11 K to 6.81 K5.11 K to 6.81 K 99 to 1...
Page 135 - Ohms
3-5. Standard Value Replacement 0.125 Resistors Resistors Type: Fixed-Film Range: 10 to Ohms Wattage: 0.125 at Tolerance: Value Fart Number 10.0 0757-0346 11.012.1 0757-0379 13.3 0698-3427 14.7 0698-3428 16.2 0757-0382 17.8 0757-0294 19.6 0698-3429 21.5 0698-3430 23.7 0698-3431 26.1 0698-3432 28.7 0...
Page 136 - - 2 2 A d j u s t m e n t s
3-5. Standard Value Replacement 0.125 Resistors (continued) Resistors Type: Fixed-Film Range: 10 to Ohms Wattage: 0.125 at Value Part Number 0698-3136 8 0698-3157 3 0757-0199 3 0698-3158 4 0698-3159 5 0698-3449 6 0698-3160 8 0757-0123 3 0698-3161 9 0698-3450 9 0698-3162 0 7 0757-0459 8 0757-0460 1 0...
Page 137 - Resistors; Value
3-6. Standard Value Replacement 0.5 Resistors Resistors Type: Fixed-Film Range: 10 to Ohms Wattage: 0.5 at Value Part Number Value Fart Number 10.0 0757-0984 4 383 0698-3404 3 11.0 0575-0985 5 422 0698-3405 4 12.1 0757-0986 6 464 0698-0090 7 13.3 0757-0001 6 511 0757-0814 9 14.7 0698-3388 2 562 0757...
Page 138 - - 2 4 A d j u s t m e n t s
3-6. Standard Value Replacement 0.5 Resistors (continued) Resistors Value 38.313 46.413 Type: Fixed-Film Range: 10 to Ohms Wattage: 0.5 at Fart Number e * a n Value Fart Number 0757-0844 5 0757-0130 2 0698-0025 8 0757-0129 9 0698-3415 6 0757-0063 0 0698-3416 7 0757-0127 7 0698-3417 8 0698-3424 7 069...
Page 139 - Reference; Figure; A d j u s t m e n t s 3 - 2 5
1. Low-Voltage Power Supply Adjustments 1. Low-Voltage Power Supply Adjustments Reference IF-Display Section: V Regulator + 120 V, V Regulator (Serial Number Prefix and above) + 100 V, V Regulator (Serial Number Prefix and below) RF Section: Voltage Regulator Description The + 15 V supply is adjuste...
Page 140 - and; DVM to
1. Low-Voltage Power Supply Adjustments 4. Connect the DVM to on the IF-Display Section. DVM indication should be + 15.000 V dc. If the voltage is out of tolerance, adjust + 15 V ADJ for the specified voltage. , 5 Figure 3-2. IF-Display Section Low-Voltage Adjustments (SN and Below) Figure 3-3. A l ...
Page 141 - RF Section
1. Low-Voltage Power Supply Adjustments 7. Verify that the + 120 V indicator (yellow LED) is lit. Note On IF-Display Sections serial prefixed and below, indicator is a + 100 V indicator. 8. Connect the DVM to DVM indication should be + 120.0 V dc. The + 120 V supply is referenced to the + 15 V suppl...
Page 142 - - 2 8 A d j u s t m e n t s
1. Low-Voltage Power Supply Adjustments supply, therefore, if the supply is out of tolerance, a circuit malfunction is indicated. 17. The indicator (yellow LED) should be lit. 18. Connect the DVM to The DVM indication should be -5.200 V The supply is referenced to the supply, therefore, if the suppl...
Page 144 - Function Generator; Adjustment Procedure; Set the spectrum analyzer’s LINE switch to STANDBY.; connect; 00 V range, and connect the DVM to; location of
2. High-Voltage Adjustment (SN and Below) D I G I T I Z I N G OSCILLOSCOPE HI-VOLTAGE SIGNAL ANALYZER Figure 3-5. High Voltage Adjustment Setup Equipment Digital Voltmeter (DVM) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . DC High-Voltage Probe (1000: 1 divider) . . . . . . ...
Page 146 - See; - 3 2 A d j u s t m e n t s
2. High-Voltage Adjustment (SN and Below) Warning With the protective cover removed in the following step, do not place hands near the High-Voltage assembly. High voltage (approximately -4000 V dc) can be present even when the ac line cord is disconnected. 10. Wait at least one minute for capacitors...
Page 147 - has; Focus and Intensity
2. High-Voltage Adjustment (SN and Below) If the calibration factor calculated in step 8 is 0.00099, and is labeled for -3875 V, then adjust HV ADJ for a DVM indication of: 0.00099 x (-3875 V) = -3.836 V dc 16. With the front-panel INTENSITY control fully counterclockwise, wait approximately 30 minu...
Page 148 - - 3 4 A d j u s t m e n t s
2. High-Voltage Adjustment (SN and Below) 27. On the oscilloscope press 28. Connect the oscilloscope channel 1 probe to using a long probe extension. See Figure 3-7 for the location of 29. Reconnect the ac line cords to each instrument section. Adjust the front-panel INTENSITY control fully counter-...
Page 149 - A d j u s t m e n t s 3 - 3 5
2. High-Voltage Adjustment (SN and Below) 34. On the oscilloscope, adjust the channel 1 offset voltage as necessary to measure the peak-to-peak CRT cut-off voltage, V,,, at See Figure 3-9. This peak-to-peak voltage should be between 45-75 Note this voltage for use in step 39. 1 1 0 . 0 6 0 . 0 0 v 1...
Page 150 - not
2. High-Voltage Adjustment (SN and Below) 39. Slowly adjust the front-panel INTENSITY control through its entire range while monitoring the peak-to-peak voltage at As the INTENSITY control is turned clockwise, the peak-to-peak voltage at will drop. To prevent long-term CRT damage, this voltage shoul...
Page 152 - - 3 8 A d j u s t m e n t s
2. High-Voltage Adjustment (SN and Below) 5. While holding the insulated handle of the screwdriver, touch the grounded blade to the following connections: a. Both brown wires going to the rear of the CRT from via cable harness b. The yellow, blue, and orange wires in the same cable as “a. above. c. ...
Page 156 - With power supplied to the instrument,; Label and Test Point; - 4 2 A d j u s t m e n t s
2. High-Voltage Adjustment (SN and Above) 11. Remove the protective cover from the High-Voltage Regulator Assembly. A label should be visible on the High Voltage Assembly. is mounted on the non-component side of the High-Voltage Regulator Assembly asshown in Figure 3-14.) Record the voltage listed o...
Page 158 - - 4 4 A d j u s t m e n t s
2. High-Voltage Adjustment (SN and Above) 3. Connect one end of a jumper wire (made of insulated wire and two alligator clips) to the blade of the screwdriver. Connect the other end of the jumper wire to the metal chassis of the IF DisplaySection. This grounds the screwdriver. 4. Slide the screwdriv...
Page 159 - Display
3. Preliminary Display Adjustments (SN and Below) 3. Preliminary Display Adjustments (SN and Below) Reference Keyboard Z-Axis Amplifier A1 X-Deflection Amplifier Y-Deflection Amplifier Note Note Adjustment 2, “High-Voltage Adjustment,” should be performed beforeperforming the following adjustment pr...
Page 160 - Amplifier Pulse; Figure 3-16. Preliminary Display Adjustments Setup; - 4 6 A d j u s t m e n t s
3. Preliminary Display Adjustments (SN and Below) Procedure X and Y Deflection 1. Connect a 10:1 (10 divider probe to the oscilloscope’s channel Amplifier Pulse 1 input and a 10: 1 divider probe to the channel 4 input. Response Adjustments 2. On the oscilloscope, press to perform a soft reset. On th...
Page 161 - Il. Connect the output of the Pulse/Function Generator to (X; The Pulse/Function Generator’s output must be terminated with 50; A d j u s t m e n t s 3 - 4 7
3. Preliminary Display Adjustments (SN and Below) Figure 3-17. Location of and HF GA H F G A I N , Figure 3-18. and Adjustment Locations 10. Set the Pulse/Function Generator controls as follows: MODE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . NORM Waveform ....
Page 163 - Figure 3-20. Composite X Deflection Waveform; Rise and Fall Times and Overshoot Adjustment Waveform
3. Preliminary Display Adjustments (SN and Below) 16. Three waveforms should be displayed on the oscilloscope, as shown in Figure 3-20. The lower composite waveform represents the combined X deflection voltage applied to the CRT. Use the oscilloscope’s front-panel knob to adjust waveform fl sensitiv...
Page 164 - CHANNEL 1
3. Preliminary Display Adjustments (SN and Below) 19. Connect the oscilloscope’s channel 1 probe to and the channel 4 probe to See Figure 3-18 for the location of the test points. Connect the output of the pulse/function generator to (Y input) on the Display Adjustment PC board in the slot. 20. The ...
Page 165 - Signal
3. Preliminary Display Adjustments (SN and Below) 28. Set the oscilloscope controls as follows: Press Channel 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . onamplitude scale . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Press 29. Adjust X POS...
Page 166 - - 5 2 A d j u s t m e n t s
3. Preliminary Display Adjustments (SN and Above) Reference Keyboard Al X, Z Axis Amplifier Note Adjustment Procedure 2, “High-Voltage Adjustment,” should beperformed before performing the following adjustment procedure. Note Perform this adjustment only if components have been replaced onthe X, Y, ...
Page 167 - Figure 3-23. Preliminary Display Adjustments Setup
3. Preliminary Display Adjustments (SN and Above) Procedure X and Y Deflection 1. Connect a (10 divider probe to the oscilloscope’s channel Amplifier Pulse 1 input and a divider probe to the channel 4 input. Response Adjustments 2. On the oscilloscope, press (RECALL) to perform a soft reset. On the ...
Page 168 - - 5 4 A d j u s t m e n t s
3. Preliminary Display Adjustments (SN and Above) Figure 3-24. Location of and Figure 3-25. Adjustment Locations 10. Set the Pulse/Function Generator controls as follows: MODE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . NORM Waveform . . . . . . . . . . . . ...
Page 169 - A d j u s t m e n t s 3 - 5 5
3. Preliminary Display Adjustments (SN and Above) 12. Set the oscilloscope controls as follows: Press Channel 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . onamplitude scale offset . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ....
Page 170 - Figure 3-27. Composite X Deflection Waveform
3. Preliminary Display Adjustments (SN and Above) the combined X deflection voltage applied to the CRT. Use theoscilloscope’s front-panel knob to adjust waveform fl sensitivityfor approximately 8 vertical divisions. r u n n i n g 1 2 0 . 0 o f f s e t : 2 5 . 0 0 V - 1 2 5 . 0 0 0 1 2 5 . 0 0 0 3 7 ...
Page 171 - down
19. 20. Pulse Response of 21. Control Gate Z Amplifier to BLANK Input 22. 23. 24. Set the oscilloscope controls as follows: Note 25. 3. Preliminary Display Adjustments (SN and Above) Connect the oscilloscope’s channel 1 probe to and the channel 4 probe to See Figure 3-25 for the location of the test...
Page 172 - - 5 8 A d j u s t m e n t s
3. Preliminary Display Adjustments (SN and Above) 29. Set the oscilloscope controls as follows: Press Channel 1 . . . . . . . . . . onamplitude scale . . . . . . . Press 30. Adjust the spectrum analyzer’s front-panel INTENSITY control for peak-to-peak (8 divisions) as indicated on the oscilloscope. ...
Page 173 - Adjustment; A d j u s t m e n t s 3 - 5 9
4. Final Display Adjustments (SN and Below) 4. Final Display Adjustments (SN and Below) Reference Description Note Procedure Note Keyboard Z Axis Amplifier X Deflection Amplifier Y Deflection Amplifier This procedure is used to optimize the appearance of the CRT display during routine maintenance or...
Page 174 - Location of Final Display Adjustments on
4. Final Display Adjustments (SN and Below) 5. For best overall focusing of the display, adjust the following potentiometers in the sequence listed below: a. FOCUS LIMIT for best focus of graticule lines (long vectors) b. ASTIG c. FOCUS GAIN for best focus of annotation (short vectors) 6. Adjust ORT...
Page 175 - Figure 3-31. Final Display Adjustments Setup
4. Final Display Adjustments (SN and Above) 4. Final Display Adjustments (SN and Above) Reference Description Equipment Procedure Note Keyboard X, Y, Z Axis Amplifiers This procedure is used to optimize the appearance of the CRT display during routine maintenance or after CRT replacement or minor re...
Page 176 - - 6 2 A d j u s t m e n t s
4. Final Display Adjustments (SN and Above) Figure 3-32. Location of Final Display Adjustments on 3-6. Initial Adjustment Positions Adjustment Y GAIN Y POSN X GAIN X POSN INT GAIN FOCUS COMP T/B FOC Al T/B CTR Al R/L FOC A R/L CTR ORTHO INT LIM ASTIG Front-panel INTENSITYFront-panel FOCUSFront-panel...
Page 178 - - 6 4 A d j u s t m e n t s
4. Final Display Adjustments (SN and Above) 17. Adjust ORTHO and the front-panel ALIGN control to optimize the orientation and appearance of the rectangulargraticule pattern on the CRT display. 18. Repeat steps 13 through 17 as needed to optimize overall display focus and appearance. 3 - 6 4 A d j u...
Page 179 - Log Amplifier Adjustments; Figure 3-33. Log Amplifier Adjustments Setup
5. Log Amplifier Adjustments 5. Log Amplifier Adjustments Reference Related Performance Tests Note IF-Display Section Log Amplifier-Filter Log Amplifier-Detector Scale Fidelity Test The Log Amplifier-Filter and Log Amplifier Detector are temperature compensated as a matched set at the factory. In th...
Page 180 - Offset Adjustment Check
5. Log Amplifier Adjustments 4. Connect DVM to and DVM ground to the IF casting. Connect the frequency synthesizer to the RF INPUT. Key in 80 MHz and [ A M P L I T U D E ) -86.98 The frequency synthesizer will now provide a load. Offset Adjustment Check 5. Adjust ZERO for 0.0000 V dc. See Figure 3-3...
Page 181 - Linear Gain Adjustments
5. Log Amplifier Adjustments Filter Amplitude Adjustment 9. Connect one end of a jumper wire to Connect the other end of the jumper to (+ Connecting the jumper to first reduces the chance of shorting the + to ground. Note DVM indication. V dc 10. Remove the short from between and 11. Adjust AMPTD fo...
Page 183 - Video Processor Adjustments; Figure 3-35. Video Processor Adjustments Setup
6. Video Processor Adjustments 6. Video Processor Adjustments Reference Related Performance Description IF-Display Section 1 Video Processor Log Scale Switching Uncertainty Test The CAL OUTPUT signal is connected to the RF INPUT through a step attenuator. The instrument is placed in zero frequency s...
Page 184 - Figure 3-36. Location of Video Processor Adjustments
6. Video Processor Adjustments 6. 7. 8. 9. 10. 11. 12. 13. 14. 15. 16. Set step attenuator to 120 DVM indication should be 0.000 V dc. (If DVM indication is out of tolerance, adjust ZERO on the log amplifier-detector board..) Set step attenuator to 0 Key in and adjust DATA knob for DVM indication as...
Page 186 - Figure 3-37. 3 MHz Bandwidth Filter Adjustments Setup
7. 3 MHz Bandwidth Filter Adjustments Reference IF-Display Section 3 MHz Bandwidth Filter Related Performance Resolution Bandwidth Switching Uncertainty TestResolution Bandwidth Selectivity Test Description With the CAL OUTPUT signal connected to the RF INPUT, the 18.4 MHz oscillator can be adjusted...
Page 187 - P r o c e d u r e; MHz Bandwidth Filter Adjustments; Location of Center, Symmetry, and 10 Amplitude
P r o c e d u r e Position instrument upright as shown in Figure 3-37 and removetop cover. 2. Set LINE switch to ON and press PRESET ). 7. 3 MHz Bandwidth Filter Adjustments Frequency Zero Check 3. Connect CAL OUTPUT signal to RF INPUT 4. Key in 5. Adjust front panel FREQ ZERO control for maximum si...
Page 189 - Figure 3-39. Location of 3 MHz Peak Adjustments
7. 3 MHz Bandwidth Filter Adjustments 25. Adjust PK for maximum peak-to-peak signal on Channel 2 display. See Figure 3-39 for location of adjustment. If unable toachieve a “peak” in signal amplitude, increase or decrease valueof Refer to 3-3 for range of values. 3 M H z B a n d w i d t h F i l t e r...
Page 192 - + 10 V Temperature Compensation Supply Check
8. 21.4 MHz Bandwidth Filter Adjustments Equipment Digital Voltmeter (DVM) . . . . . . . . . . . . . . . . . . . . . . . .HP 10 Step Attenuator . . . . . . . . . . . . . . HP Option 1 Step Attenuator . . . . . . . . . . . . . . . HP Option Crystal Filter Bypass Network (2 required) . . . . Refer to ...
Page 193 - XTAL Adjustments
8. 21.4 MHz Bandwidth Filter Adjustments 10. Key in 1 MHz, and 1 MHz. 11. Press MARKER SEARCH ], MARKER 12. Key in 100 200 and MARKER [ PEAK SEARCH). 13. Adjust LC to align markers on display. MARKER A level should indicate 1.00 X. See Figure 3-41 for location of adjustment. 14. Repeat steps 10 thro...
Page 194 - LC Adjustments
8. 21.4 MHz Bandwidth Filter Adjustments 22. Adjust CTR to center signal on center graticule line. Adjust SYM for best symmetry of signal. See Figure 3-42 for location of adjustments. If unable to adjust SYM for satisfactory signal symmetry, increase or decrease value of Refer to 3-3 for range of va...
Page 196 - Dip Adjustments
8. 21.4 MHz Bandwidth Filter Adjustments 45. 46. 4 7 . 48. 49. 50. 51. 52. 53. 54. 55. 56. 57. 58. 59. 60. 61. Adjust XTAL to align markers on display. MARKER A level should indicate 1.00 X. See Figure 3-44 for location of adjustment. Dip Adjustments Refer to the Resolution Bandwidth Switching Uncer...
Page 197 - AlOdB and
62. 63. 64. 65. 66. 67. 8. 21.4 MHz Bandwidth Filter Adjustments approximately -17 (to the left). If unable to achieve a “dip” in signal amplitude, increase or decrease value of Refer to 3-3 for range of values. Remove short from and short to ground. Adjust LC DIP for minimum amplitude of signal pea...
Page 199 - Bandwidth Adjustments; now
9. 3 Bandwidth Adjustments IF CONTROL \ Figure 3-45. Location of 3 Bandwidth Adjustments 9. Press MARKER Adjust marker to 3 point on opposite side of signal (CRT MKR A annotation indicates 1.00 X). There are now two markers; one on each side of the signal at the 3 points. 10. CRT MKR A annotation no...
Page 201 - Step Gain and 18.4 MHz Local Oscillator Adjustments; Oscillator; Step Gain and 18.4 MHz Local Oscillator Adjustments Setup
10. Step Gain and 18.4 MHz Local Oscillator Adjustments 10. Step Gain and 18.4 MHz Local Oscillator Adjustments Reference Related Performance Tests Description IF-Display Section 3 MHz Bandwidth Filter Step Gain Resolution Bandwidth Selectivity TestIF Gain Uncertainty TestCenter Frequency Readout Ac...
Page 202 - IF Gain Adjustment; Figure 3-47. Location of IF Gain Adjustment
10. Step Gain and 18.4 MHz Local Oscillator Adjustments Equipment Digital Voltmeter (DVM) . . . . . . . . . . . . . . . . . . . . . . . . HP Power Meter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A Power Sensor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...
Page 203 - Gain Step Adjustments
10. Step Gain and 18.4 MHz Local Oscillator Adjustments 10. If CAL adjustment does not have sufficient range to adjust trace to the top CRT graticule line, increase or decrease the value of as necessary to achieve the proper adjustment range of CAL adjustment. See Figure 3-39 for the location of Ref...
Page 205 - Temperature Compensation Supply Adjustment
10. Step Gain and 18.4 MHz Local Oscillator Adjustments S T E P G A I N F R E O A D J Z E R O C O A R S E “ R Figure 3-49. Location of Gain Step, 18.4 MHz LO, and + Adjustments 36. Key in [ FREQUENCY 1 100 Hz, and [ PEAK SEARCH] 37. Adjust front-panel FREQ ZERO control fully clockwise. Press SEARCH ...
Page 209 - also; 0 MHz Quartz Crystal Oscillator
12. Time Base Adjustment (SN and Below, also and Above) 12. Time Base Adjustment (SN and Below, also and Above) Reference Related Performance Test Description Equipment RF Section: 10 MHz Quartz Crystal Oscillator Center Frequency Readout Accuracy Test The frequency of the internal 10 MHz Frequency ...
Page 217 - 0 MHz Reference Adjustments; Reference Adjustments Setup
13. 20 MHz Reference Adjustments 13. 20 MHz Reference Adjustments Reference Related Performance Description Equipment RF Section: 20 MHz Reference Calibrator Amplitude Accuracy Test The 20 MHz output is peaked and amplitude checked for proper level.The INTERNAL REFERENCE output level is then checked...
Page 218 - Procedure; Figure 3-57. Location of 20 MHz Reference Adjustments
13. 20 MHz Reference Adjustments Procedure 1. Position instrument on right side as shown in Figure 3-56 and remove bottom cover. Remove 20 MHz Reference and install on extenders. See Figure 3-57 for the location of components. 2. Set LINE switch to ON and press PRESET ). 3. Set rear-panel FREQ REFER...
Page 221 - 49 MHz Phase Lock Oscillator Adjustments; Lock Oscillator; Figure 3-59. 249 MHz Phase Lock Oscillator Adjustments Setup
14. 249 MHz Phase Lock Oscillator Adjustments 14. 249 MHz Phase Lock Oscillator Adjustments Reference Description Equipment RF Section: 249 MHz Phase Lock Oscillator Two center frequencies are chosen: one which will tune the 249 MHzOscillator to its low-end frequency and one which will tune the 249M...
Page 222 - Location of 249 MHz Phase Lock Oscillator Adjustments
14. 249 MHz Phase Lock Oscillator Adjustments P r o c e d u r e Place instrument on right side with IF-Display Section facing rightas shown in Figure 3-59. 2.3. 4. 5. 6. 7. 8. 9. 10. 11. Key in 2 and adjust for + 13.0 fO.l V dc at 12. 13. 14. adjustment. Press 1 (RECALL 1) and adjust for V dc. Repea...
Page 225 - 75 MHz Phase Lock Oscillator Adjustment; Figure 3-62. Location of 275 MHz PLO Adjustment; Disconnect test equipment from instrument.
15. 275 MHz Phase Lock Oscillator Adjustment 2 7 5 P H A S E L O C K O S C I L L A T O R 0 U 1 Figure 3-62. Location of 275 MHz PLO Adjustment 7. Disconnect test equipment from instrument. Adjustments 11
Page 226 - Figure 3-63. Second IF Amplifier Adjustments Setup
16. Second IF Amplifier and Third Converter Adjustment Reference RF Section: Second IF Amplifier Third Converter Description A synthesized sweeper is used to inject a signal of 301.4 MHz at -20 in to the Second IF Amplifier. The output of the amplifier is displayed on a scalar network analyzer. The ...
Page 227 - Second IF Amplifier and Third Converter Adjustment
Procedure Second IF Amplifier Adjustments 16. Second IF Amplifier and Third Converter Adjustment Adapters: Type N (f) to (f) . . . . . . . . . . . . . . . . . . . . . . 1250-1745 Type N (m) to BNC (f) required) . . . . . . . . . . . . . 1250-0780Type N (f) to BNC (f) required) . . . . . . . . . . . ...
Page 228 - BPF and 280 MHz AMPTD Adjustments
16. Second IF Amplifier and Third Converter Adjustment 14. 15. 16. 17. See Figure 3-65 for the typical response when the filter is properly adjusted. On the scalar network analyzer, press MAX. Press cursor A, ON and set the cursor to the -3 point on the low side of the filter response Press cursor A...
Page 230 - Figure 3-67. Pilot Second IF Amplifier Adjustments Setup
16. Second IF Amplifier and Third Converter Adjustment 17. Pilot Second IF Adjustments Reference RF Section: Pilot Second IF Amplifier Pilot Third Converter Description A synthesized sweeper is used to inject a signal of 269 MHz at -20 into the Pilot Second IF Amplifier. The output of the amplifier ...
Page 231 - Pilot Second IF Amplifier Adjustments
17. Pilot Second IF Amplifier Adjustments Procedure 1. Position instrument on right side as shown in Figure 3-67, with bottom cover removed. 2. Set LINE switch to ON and press PRESET ) on HP (DUT), HP and HP 3. Connect 20 Attenuator and power splitter to RF OUTPUT of synthesized sweeper. Connect one...
Page 232 - Filter Adjustments
17. Pilot Second IF Amplifier Adjustments P I L O T P I L O T I F A M P L I F I E R C O N V E R T E R \ F I L T E R Figure 3-68. Location of 269 MHz Filter Adjustments 3 2 1 Figure 3-69. 269 MHz Filter Adjustments Waveforms 15. On the scalar network analyzer, press MAX. Press cursor A, ON and set th...
Page 233 - Frequency Control Adjustments; Control; Figure 3-70. Frequency Control Adjustments Setup
18. Frequency Control Adjustments 18. Frequency Control Adjustments Reference Related Performance Tests Description Equipment Procedure RF Section: Frequency Control Sweep Time Accuracy TestFrequency Span Accuracy Test Center Frequency Readout Accuracy Test The sweep reference voltage is adjusted an...
Page 236 - START and STOP
18. Frequency Control Adjustments START and STOP Adjustments FM SPAN Adjustment 30. 22. 23. Key in STEP 1023 Hz. Adjust LSD for DVM indication of V dc. If not using an HP DVM, adjust for specified voltage plus the DVM indication in step 20. See Figure 3-71 forlocation of adjustment. 24. On the HP pr...
Page 237 - Second Converter Adjustments; Converter; T e s t; by; Figure 3-72. Second Converter Adjustments Setup
19. Second Converter Adjustments 19. Second Converter Adjustments Reference RF Section: RF Converter Related Performance RF Gain Uncertainty Test T e s t Spurious Responses Test Description First, the second LO frequency is adjusted for proper frequency and then the LO shift is adjusted by using the...
Page 238 - Figure 3-73. Location of Second Converter Adjustments; 4 Adjustments
19. Second Converter Adjustments Procedure Second LO Frequency 3. Set HP Spectrum Analyzer LINE to ON and press and Shift Adjustments PRESET]. Note The second LO and pilot second LO output power is typically -35 or less. An HP amplifier is used in steps 1 through 26 to amplify the LO power to a leve...
Page 240 - Second Converter; Filter
19. Second Converter Adjustments Second Converter 27. Key in [ FREQUENCY SPAN ] 0 Hz. Filter Adjustments 28. On the synthesized sweeper, key in 240 MHz, 50 MHz, and 10 29. Connect the synthesized sweeper’s SWEEP OUTPUT (rear panel), Z-AXIS BLANK/MKRS (rear panel), and PULSE MODULATIONINPUT (front pa...
Page 242 - i i i ii i I
19. Second Converter Adjustments 48. Disconnect cable connected to and connect to IF IN). Reconnect semi-rigid cable to that was disconnected in step 36. 49. Set the synthesized sweeper’s for 2052.5 MHz MHz. Adjust to center the signal. 50. Adjust and for best shape and flatness at maximum amplitude...
Page 244 - Figure 3-78. 50 MHz Voltage-Tuned Oscillator Adjustments Setup
20. 50 MHz Voltage-Tuned Oscillator Adjustments Reference Related Performance Test Description Equipment Procedure RF Section: All 50 MHz Voltage-Tuned Oscillator (VTO) Frequency Span Accuracy Test Center Frequency Readout Accuracy Test First, the voltage reference for the Shaping network is set by ...
Page 245 - 0 MHz Voltage-Tuned Oscillator Adjustments; DACS Accuracy Check; next; Positive Supply
20. 50 MHz Voltage-Tuned Oscillator Adjustments DACS Accuracy Check 3. Connect DVM to and ground lead to 4. Key in [SHIFT) STEP 0 Hz. If using an DVM, then If not using an HP DVM, note voltage indication for reference later. 5. Key in STEP SIZE ) 1023 6. If using an HP DVM, voltage indication should...
Page 246 - End Adjustment
20. 50 MHz Voltage-Tuned Oscillator Adjustments 14. Adjust All POS SUPPLY for a DVM indication the same as that noted in step 12. See Figure 3-79 for location of adjustment. High-Frequency Key in STEP SIZE ] and End Adjustment 16. Adjust All OFFSET for VTP frequency indication 28.000 MHz MHz. Key in...
Page 247 - 1. Slope Compensation Adjustments; Compensation
2 1. Slope Compensation Adjustments 21. Slope Compensation Adjustments Reference RF Section: Frequency Control Related Performance Test Frequency Response Test Description The HP Spectrum Analyzer is swept between 10 MHz and 1500 MHz, using a synthesized sweeper which has been power-meter leveled. T...
Page 249 - Slope Compensation Adjustments; Figure 3-82. Slope Compensation Adjustment Waveforms
21. Slope Compensation Adjustments Note At this sweep time, some trace discontinuities are common. 14. Adjust TILT for best flatness (clockwise rotation increases the power slope), and trigger two sweeps on the synthesized sweeper. See Figure 3-81 for the location of Compare the resultant trace with...
Page 250 - RF Converter; The output of the Pilot First Converter is connected to the signal; Figure 3-83. Location of Comb Generator Adjustments
22. Comb Generator Adjustments Reference RF Section: RF Converter 20 MHz Reference Description The output of the Pilot First Converter is connected to the signal input of the Second Converter. This allows the comb teeth from the Comb Generator to be displayed on the CRT display. The phase lock flags...
Page 251 - Comb Generator Adjustments
22. Comb Generator Adjustments Equipment Cable, SMA (m) to SMA (m) . . . . . . . . . . . . . . . HP 85680-20094 Procedure 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. Set instrument LINE switch to ON and press PRESET ). Connect CAL OUTPUT to SIGNAL INPUT 2. Key in FREQUENCY ) 20 MHz, [ FREQUENCY SPAN ...
Page 253 - The Analog-to-Digital Ramp Converter is adjusted at zero and
23. Analog-To-Digital Converter Adjustments 23. Analog-To-Digital Converter Adjustments Reference Description Equipment Analog-to-Digital Converter The Analog-to-Digital Ramp Converter is adjusted at zero and full-scale by injecting a 0 V dc input and + 10 V dc input and adjustingthe OFFS and GAIN c...
Page 254 - Standard Procedure; Location of Analog-To-Digital Converter Adjustments
23. Analog-To-Digital Converter Adjustments Procedure 1. Position instrument upright as shown in Figure 3-85 and remove top cover. 2. Set LINE switch to ON and press PRESET ). Standard Procedure 3. Procedure using Low-Noise DC Supply is illustrated in Figure 3-93. a. Key in TRACE A and SWEEP b. Disc...
Page 256 - Figure 3-87. Track and Hold Adjustments Setup
24. Track and Hold Adjustments Reference Track and Hold Description The CAL OUTPUT signal is connected to the RF INPUT. Theinstrument is placed in zero frequency span to produce a dc level output from the IF-Video section and this dc level is regulated byadjusting the reference level. The Offsets an...
Page 257 - Track and Hold Adjustments; Figure 3-88. Location of Track and Hold Adjustments
24. Track and Hold Adjustments AS ES C A L A D J I 10. 11. ‘ L E R M A T C H C A L O U T P U T Figure 3-88. Location of Track and Hold Adjustments Key in TRACE A Adjust OFFS POS until MARKER A level indication as indicated by CRT annotation flickers back and forth between .OOand 12. Key in TRACE A 1...
Page 258 - GNEG for MARKER A level indication as
24. Track and Hold Adjustments 24. Adjust GNEG for MARKER A level indication as indicated by CRT annotation of 100 25. Repeat steps 4 through 24 until no further adjustments are required. 3-144 Adjustments
Page 259 - Digital Storage Display Adjustments; Figure 3-89. Digital Storage Display Adjustments Setup
25. Digital Storage Display Adjustments 25. Digital Storage Display Adjustments Reference Description Equipment Procedure Preliminary Graticule Adjustments 1 Trigger Intensity Control Line Generator First, preliminary CRT graticule adjustments are performed to positionthe graticule on the CRT. These...
Page 260 - Digital Storage Display Adjustments; Figure 3-90. Location of Digital Storage Display Adjustments; so that
2 5 . Digital Storage Display Adjustments I N T E N S I T Y L I N E T R I G G E R C O N T R O L G E N E R A T O R Y H BAL X H S W P O F F S E T Figure 3-90. Location of Digital Storage Display Adjustments 5. Adjust LL THRESH fully clockwise. See Figure 3-90 for location of adjustment. 6. Adjust XLL ...
Page 261 - Sample and Hold; Figure 3-91. Sample and Hold Balance Adjustment Waveforms
25. Digital Storage Display Adjustments Sample and Hold 13. Set LINE switch to STANDBY. Balance Adjustments 14. Place Line Generator on extender boards. 15. Set LINE switch to ON. Press PRESET ]. 16. Key in (RECORDER LOWER LEFT) 0 [Hz). Press (RECORDER UPPER RIGHT) 1028 17. Connect oscilloscope to 1...
Page 262 - X and Y Offset and 25.
25. Digital Storage Display Adjustments 20. 21. 22. 23. 24. Set LINE switch to ON. X and Y Offset and 25. Gain Adjustments 27. Press Key in [ FREQUENCY SPAN ] 0 Hz, [ SWEEP T I M E ) 100 Disconnect cable 9 (white) from and connect to test connector on Intensity Control; the other end of the cable re...
Page 263 - Final Graticule
25. Digital Storage Display Adjustments 41. Adjust Y GAIN to align the top graticule line with the fast sweep signal trace. Final Graticule 42. Press PRESET ], TRACE A Adjustments 43. Set LL THRESH fully clockwise. 44. Adjust XLL and YLL to align horizontal and vertical lines so that each line meets...
Page 267 - may
4. 6 Resolution Bandwidth Accuracy Test Related Adjustment Specification Description Equipment Procedure 6 Bandwidth Adjustments 3 MHz bandwidth 30 Hz to 1 MHz bandwidths + -0%, 10 Hz bandwidth 30 and 100 bandwidth accuracy figures only applicable Relative Humidity, C. The 6 bandwidth for each resol...
Page 271 - Impulse and Resolution Bandwidth Accuracy
4. Impulse and Resolution Bandwidth Accuracy 17. 18. 19. 20. 21. 22. 23. 24. 25. 26. 27. 28. 29. 30. 31. 32. to 30 On the Set the frequency synthesizer spectrum analyzer key in [ FREQUENCY 0.5 seconds, SWEEP MA MARKER amplitude in 4 S W E E P T I M E ] RKER ( P E A K S E A R C H ) . Record -2. Calcu...
Page 276 - Resolution Bandwidth Selectivity; be; Bandwidth Measurement
7 . 8 . 9 . 10. 5. 6 Resolution Bandwidth Selectivity Vary spectrum analyzer settings according to Table 4-4. PressSWEEP and measure the 60 bandwidth for each resolution bandwidth setting by the procedure of steps 4 through6. Record the value in 4-4. Record the 6 bandwidths from Table in 4-4. Calcul...
Page 279 - O p t i o n 4 6 2
5. Impulse and Resolution Bandwidth Selectivity 0 . 0 - 0 . 1 0 Figure 4-5. 60 Bandwidth Measurement 4. Press MARKER In] and position the positive movable marker 60 down from the signal peak on the negative-going edge of the signaltrace (the MARKER amplitude readout should be 0.00 5. Read the 60 ban...
Page 282 - I I I I I I I
6. Impulse and Resolution Bandwidth Switching Uncertainty A I I I I I I I M A R 0 \ Figure 4-6. Bandwidth Switching Uncertainty Measurement 4-6. Bandwidth Switching Uncertainty Res B W 1 MHz (i) 3 MHz (i) 300 (i) 100 (i) 30 (i) 10 (i) 3 (i) 1 (i) 300 Hz (i) 100 Hz (i) 30 Hz (i) 10 Hz (i) Frequency S...
Page 284 - Steps 1 through 38. Impulse Bandwidth Accuracy
3 MHz (i) 1 MHz (i) 300 (i) 100 (i) 30 (i) 10 (i) 3 (i) 1 (i) 3 MHz 3 MHz 3 MHz 1 MHz 300 100 3 0 1 0 Test 4. Impulse and Resolution Bandwidth Accuracy Test (p/o 2-19, Performance Record) Test 4. Impulse and Resolution Bandwidth Accuracy Test (p/o 2-19, Performance Test Record) Steps 1 through 38. I...
Page 290 - Resolution Bandwidth Adjustments; Figure 4-7. Location of Bandwidth Adjustments
9. 6 Resolution Bandwidth Adjustments 13. Using the DATA knob, adjust the marker down one side of the display signal to the 6 point; CRT MKR A annotation indicates x. I I F C O N T R O L \ ~000000000000000000 000000000000000000 Figure 4-7. Location of Bandwidth Adjustments 14. Adjust 1 MHz for MKR A...
Page 292 - Impulse Bandwidth Adjustments
9. Impulse Bandwidth Adjustments 9. Impulse Bandwidth Adjustments Reference Related Performance Test Description Equipment Procedure IF-Display Section IF Control Impulse Bandwidth Accuracy Test The CAL OUTPUT signal is connected to the SIGNAL INPUT 1. Each of the adjustable resolution bandwidths is...
Page 293 - Figure 4-8. Location of Bandwidth Adjustments
9. Impulse Bandwidth Adjustments 13. Using the DATA knob, adjust the marker down one side of the display signal to the 7.3 point; CRT MKR A annotation indicates 0.430 X. I F C O N T R O L \ 1 1 Figure 4-8. Location of Bandwidth Adjustments 14. Adjust 1 MHz for MKR A indication of 500 while maintaini...
Page 295 - Chapter 2. The procedure included in this chapter is listed below:
Option 857 Introduction This chapter contains a modified performance test for Option 857instruments. When working on Option 857 instruments, substitutethe procedure in this chapter for the standard version contained in Chapter 2. The procedure included in this chapter is listed below: Performance Te...
Page 296 - Figure 5-1. Option 857 Amplitude Fidelity Test Setup
12. Option 857 Amplitude Fidelity Test Related Adjustment Log Amplifier Adjustments Specification Log: Incremental fO.l over 0 to 80 display Cumulative 3 MHz to 30 Hz Resolution Bandwidth: max over 0 to 70 display (20 max over 0 to 90 display 10 Hz Resolution Bandwidth: max over 0 to 70 display (20 ...
Page 297 - Option 857 Amplitude Fidelity; Log Fidelity
12. Option 857 Amplitude Fidelity Equipment Frequency Synthesizer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . HP Adapter, Type N (m) to BNC (f) . . . . . . . . . . . . . . . . . . . . . . HP 1250-0780 (2) BNC to BNC cable . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...
Page 299 - O p t i o n 8 5 7
12. Option 857 Amplitude Fidelity Frequency 1 Synthesizer Calibrated Amplitude Amplitude Step 0 (ref) 0 - 1 0 - 1 0 - 2 0 - 2 0 - 3 0 - 3 0 - 4 0 - 4 0 - 5 0 - 5 0 - 6 0 - 6 0 - 7 0 - 7 0 - 8 0 - 8 0 - 9 0 20. Subtract the greatest negative fidelity error from the greatest positive fidelity error fo...
Page 304 - Major Assembly and Component Locations; Figure Index; Assembly; Major Assembly and Component locations
Major Assembly and Component Locations IF-Display Section Figure Index Assembly See Figure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-6 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-4, 6-5 . . . . . . . . ...
