HP 86222A RF Plug-In
Contents
1. 0 50 8755A CHANNEL A aB DIV Sensitivity 20 02 ars anne Ren 10 DISPLAY sn senden age Press inR OFFSET OB Ar ee a den 15 RESET sa Gh oe aa aE RE Ara OFF 3 Depress LINE pushbutton switch to turn on mainframe The LINE switch and FULL SWEEP pushbutton should light indicating FULL SWEEP mode is selected In sweep mode a ramp sweep voltage is supplied through SWEEP OUT front panel connector to display equipment 4 Adjust 86222A B POWER LEVEL control for desired power level on oscilloscope For some measurements such as flatness POWER LEVEL is set so UNLEVELED lamp isor Figure 3 4 Typical Sweep Operation 3 of 5 Model 86222 A B Operation TYPICAL SWEEP OPERATION NOTE Normal operation requires a sweep from low frequency to high fre quency However the Model 8620C will also sweep from high to low frequency by setting START MARKER pointer to high frequency side of sweep and setting STOP MARKER pointer at low frequency side of sweep This operation is possible only when 86222B markers are not used 5 For normal sweep mode operation set 8620C MODE switch to AUTO and the sweep signal is obtained from internal sweep oscillator This is the only position of the MODE switch that allows TRIGGER and TIME switches to operate However if an external sweep source is used set MODE switch to EXT position The EXT SWEEP is routed through rear panel PROGRAMMING connector oO to MODE switch2. 20 kHz With 3 1 Load SWR All Phases lt 10 kHz With 10 dB Power Level Change lt 100 kHz Residual FM in 10 kHz Bandwidth FM NORM PL Switch in NORM position CW Mode lt 5 kHz peak POWER OUTPUT Power Level For calibrated frequency range at 25 C Maximum Leveled Power gt 13 dBm 20 mW Power Level Accuracy Internally Leveled lt 1 dB includes Flatness Power Variation Internally Leveled lt 0 25 dB Externally Leveled Crystal Detector lt 0 1 dB Power Meter lt 0 1 dB Option 002 lt 0 33 dB 0 016 dB 10 dB Spurious Signals below fundamental at specified maximum leveled power 25 C Harmonics gt 25 dB Non Harmonies 0 01 2 3 GHz gt 30 dB 2 32 4 GHz gt 25 dB Residual AM 100 kHz Bandwidth gt 50 dB below maximum power Equivalent Source SWR SWR lt 15 1 Impedance 50 ohms nominal MODULATION External FM Maximum Deviations for Modulation Frequencies DC to 100 Hz 75 MHz 100 Hz to 1 MHz 5 MHz 1 MHz to 2 MHz 2 MHz External AM ON OFF Ratio gt 30 dB Symmetry 40 60 at gt 10 dBm output power Attenuation for 6 volt input gt 30 dB Internal AM At Maximum Leveled Power 1 kHz Square wave ON OFF Ratio gt 30 dB RF Blanking ON OFF Ratio gt 30 dB MARKERS 862228 Only gt gt Marker Generator Accuracy at 25 C with Power Qut put 3 to 13 dBm Center Frequency Accuracy 5 x 10 Ma
3. Capacitors inside the instrument may still be charged even if the instrument has been disconnected from its source of supply Ensure that only fuses with the required rated current and of the specified type normal blow time delay etc are used for replacement The use of repaired fuses and the short circuiting of fuse holders must be avoided If it is suspected that the protection has been impaired the instrument must be made inoperative and be secured against any unintended operation lf the mainframe is to be energized via an auto transformer for voltage reduc tion make sure the common terminal is connected to the earthed pole of the power source BEFORE SWITCHING ON THE MAIN FRAME the protective earth terminals of the instrument must be connected to the protective conductor of the mains power cord The mains plug shall only be inserted in a socket outlet provided with a protective earth contact The pro tective action must not be negated by the use of an extension cord power cord without a protective conductor grounding Grounding one conductor of a two conductor outlet is not suffi cient protection Any interruption of the protective grounding conductor inside or out side the instrument or disconnecting the protective earth terminal could make this instrument dangerous BEFORE SWITCHING ON THE MAIN FRAME ensure that mainframe s ac Model 86222A B cautions conta input is set to the
4. Spurious Signals dB below fundamental Harmonics Typically gt 30 dB at 10 dBm Non Harmonies 10 MHz to 2 3 GHz at 10 dBm Typically gt 40 dB 2 3 to 2 4 GHz at 10 dBm Typically gt 35 dB Broadhand Noise 100 kHz Bandwidth Noise Level 70 dBm MODULATION Sensitivity FM Mode FM NORM PL switch in FM position Typically 20 MHz Volt Phase Lock Mode FM NORM PL switch in PL position Typically 6 MHz Volt External AM Frequency Response Typically 150 kHz MARKERS 86222B Only External Marker Frequency Range Power Output 3 to 13 dBm 10 to 0 dBm External Input Power 10 MHz to 1 0 GHz 10 to 10 dBm External Input Power 1 0 to 2 4 GHz over limited power range Marker Width around center frequency with Power Output 3 to 13 dBm 50 MHz Marker 300 kHz 10 MHz Marker 200 kHz 1 MHz Marker 75 kHz External Marker 300 kHz Temperature Stability Power Output 3 to 13 dBm 50 MHz Marker 100 Hz C 10 MHz Marker 20 Hz C 1 MHz Marker 2 Hz C Marker Output Power Output 3 to 13 dBm LL Mode 3 Volts LIT Mode 3 to 8 Volts Amplitude Mode 0 5 dB GENERAL Crystal Input Approximately 10 to 100 mV for specified level ing at maximum rated output for use with nega tive polarity detectors such as HP Model 780 series Directional Detectors and HP Model 423A Crystal Detector Net Weight 2 5 kg 5 5 pounds Shipping Weight 4 kg 9 pou
5. HEWLETT 2 PACKARD OPERATING AND SERVICE MANUAL 86222A B RF PLUG IN Including Options 002 004 and 002 004 SERIAL NUMBERS This manual applies directly to HP Model 86222A with serial prefix 1725A and to HP Model 86222B with serial prefix 1722A With changes described in Section VII this manual also applies to HP Model 86222A prefixes 1516A 1549A 1606A and 1636A and to HP Model 86222B prefixes 1522A 1552A 1601A 1604A and 1628A For additional information about serial numbers see INSTRUMENTS COVERED BY MANUAL in Section I COPYRIGHT HEWLETT PACKARD COMPANY 1975 1977 1400 FOUNTAIN GROVE PARKWAY SANTA ROSA CALIFORNIA 95404 U S A MANUAL PART NO 86222 90009 Microfiche Part No 86222 90010 Printed OCTOBER 1977 MANUAL CHANGES MANUAL IDENTIFICATION Model Number 86222A B Date Printed October 1977 Part Number 86222 90009 This supplement contains important information for correcting manual errors and for adapting the manual to instruments containing improvements made after the printing of the manual To use this supplement Make all ERRATA corrections Make all appropriate serial number related changes indicated in the tables below 6222A 862228 pom Serial Prefix or Number Make Manual Changes pr Serial Prefix or Number em Make Manual Changes ma 1725A 1 1722A 1 L 4 af 1731A 1 2 17324 152 R 1832A 1903A 15255 J 1741A 1 2 3 L L
6. 1 Front Panel Controls Connectors and Indicators 2 of 2 on 3 8 Operation Model 86222 A B REAR PANEL FEATURES Interface Connecter Provides interconnection ation If FM or PL modes of operation are not between 8620C mainframe and 86222A B RF being used switch should be in NORM Plug in O FREQ REF BNC connector Provides approxi FM NORM PL switch Operates in conjunction mately 1 volt GHz frequency reference signal with FM input connector to provide optimum per formance for either normal sweep NORM fre FM BNC connector Input connector for FM quency modulation FM or phase lock PL oper modulation signal or phase locking error signal Figure 3 2 Rear Panel Conirols and Connectors 3 4 Model 86222A B Operation OPERATOR S CHECKS FRONT REAR Figure 3 3 Operator s Checks 1 of 3 Operation Model 86222A B OPERATOR S CHECKS SWEEP RE OSCILLATOR PLUG IN OSCILLOSCOPE Z AXIS aa TRE on n OUTPUT OUTPUT 1048 ATTEN CRYSTAL UATOR DETECTOR oo mn B as EQUIPMENT Sweep Oscillator 2 22 cc nee ce eee HP 8620C A taa iaoi Da EE HP 86222A B Oscilloscope oo cee eee eee HP 182C 1801A 1820C Crystal Detector 2 ec eee tenes HP 423A 10 dB Attenuator 2 eee HP 8491A Option 010 NOTE All procedures are written for the 8620C Sweep Oscillator These same procedures will apply to the 8620A wit
7. BLANKING 86222B A T e aean a ON POWER LEVEL 13 dBm ALG a a ow ee ti Se ds ate INT MARKER FREQ MHz 50 MARKER MODE ETRIE OOS 61 ES FM NORM PL NORM NOTE The oscilloscope display consists of the selected AF pointer frequency swept symmetrically around the selected CW point of frequency For example with the CW pointer at 100 MHz and a AF of 100 MHz the display is from 50 MHz to 150 MHz To determine the frequency range of the markers the first and last good markers should each be centered on the oscilloscope display and either the CW pointer fre quency setting read directly or the 8620C put in CW mode and the output frequency read with a frequency counter Press 8620C AF pushbutton and adjust AF to display from 2 to 8 markers on oscillo scope display Adjust oscilloscope intensity for best marker contrast Slowly adjust 8620C CW control to display from 10 MHz to 2 4 GHz and ensure 50 MHz markers are present and stable over the full calibrated frequency range Set MARKER FREQ MHz switch to 10 and adjust AF to display between 2 and 8 markers on oscilloscope display Slowly adjust 8620C CW control to display from 10 MHz to 2 4 GHz and ensure 10 MHz markers are present and stable over the full calibrated frequency range Set MARKER FREQ MHz switch to 1 and adjust AF to display between 2 and 8 markers on oscilloscope display Slowly adjust 8620C CW control to display from 10 MHz to 1 GHz and ensure 1
8. EXT position If it is necessary to sweep band manually set MODE to MANUAL position and adjust MANUAL control In MANUAL position a tuning voltage is supplied through SWEEP OUT front panel connector to display instrument 6 For normal sweep operation set 8620C TRIGGER switch to INT position This pro vides automatic repetitive sweep If a single sweep is to be viewed press TRIGGER switch to SINGLE position and release Repeat this for each single sweep TRIGGER EXT position connects trigger input circuit to rear panel EXT TRIGGER connector LINE position allows sweep to be triggered by line frequency 7 Set 8620C TIME SECONDS switch to desired range and adjust vernier control to desired sweep time 8 When operating witch the HP 8755A the 8620C rear panel DISPLAY BLANKING OFF switch 28 is normally set to DISPLAY BLANKING and a blanking pulse is supplied through Z AXIS MKR PEN LIFT output connector O to the Swept Amplitude Analyzer Z AXIS INPUT For 86222B operation with the HP 8755A MARKER OUTPUT connector is normally used to supply harmonic intensity markers to the swept Amplitude Ana lyzer Z AXIS INPUT Both display blanking and intensity marker operation may be used simultaneously if the equipment is connected as shown in the partial test setup below NOTE The Resistive Barrel 5061 1015 is supplied with the 86222B Figure 3 4 Typical Sweep Operation 4 of 5 3 11 Operation Model 86222 A
9. INT external EXT or power meter MTR A front panel ALC EXT INPUT con nector and ALC GAIN control are provided to use with an external leveling loop When the UN LEVELED light is on it indicates that the leveling loop is open over a portion of the swept band BNC connectors on the rear panel allow for exter nal FM signal inputs and a 1V GHz FREQ REF output 1 23 OPTIONS 1 24 Options for the Model 86222A B RF Plug in are available to 1 include a 70 dB built in at tenuator 2 route the RF OUTPUT connector to the rear panel 3 combine the 70 dB built in at tenuator and rear panel RF OUTPUT connector 1 25 Option 002 1 26 Option 002 provides a front panel zero to 70 dB step attenuator in the RF signal line Instal General Information lation information is provided in Appendix A See Table 1 3 for parts required to install Option 002 1 27 Option 004 1 28 The 86222A B Option 004 moves the RF OUTPUT connector from the front panel to the rear panel Installation information is provided in Appendix B Installation of the Option 004 re quires the parts listed in Table 1 3 1 29 Option 002 004 1 30 The 86222A B Option 002 004 provides a rear panel RF OUTPUT connector with a zero to 70 dB step attenuator in the RF signal line Instal lation information is provided in Appendix C In stallation of the Option 002 004 requires the parts listed in Table 1 3 1 31 ACCESSORIES SUPPLIED 1 32 Figure 1
10. PA T PA PA P A T P A T P Performance Test A Adjustments T Troubleshooting These parts are included in Service Accessories Kit No 08620 60030 13 Model 86222A B Table 1 4 Recommended Test Equipment 2 of 2 General Information Instrument Critical Specifications Recommended Use Model RF Service Cable Impedance 50 ohms HP 8120 1578 T Connectors SMA to SMA Figure 1 3 RF Connector Adapter SMA jack to SMA jack Figure 1 3 HP 1250 1158 T 18 Pin Extender Board See Figure 1 3 HP 5060 2041 T A Function Generator Frequency 10 Hz to 2 1 MHz HP 3310A P A Output 12V peak to peak square wave RMS Voltmeter Scale RMS volts HP 3400A P Range 0 to 70 dB Accuracy 5 Frequency Range 10 Hz to 100 kHz DC Power Supply Range 0 to 10 Vde HP 6213A p Current 0 1 Amp Adjustable AC Line Output 100 to 150 Vac General Radio MT32 P Transformer Power 150 watts Directional Coupler Coupling 20 dB HP 778D PT Directivity gt 25 dB SWR all ports lt 1 3 Frequeney Counter Range 1 MHz to 2 4 GHz HP 5340A EAT Cable 2 ft long BNC connectors HP 11086A P 50 Ohm Load Impedance 50 Ohms HP 11593A A BNC Male Connector Adjustable Short Type N Male connector Microlab FXR P 50 6 MN P Performance Test A Adjustments T Troubleshooting These parts are included in Service Accessories Kit No 08620 60030 1 9 1 10 Model 86222A B Installatio
11. absorbing material 3 to 4 inch layer around all sides of instrument to provide firm cushion and prevent movement inside container Protect control panel with cardboard d Seal shipping container securely e Mark shipping container FRAGILE to assure careful handling f In any correspondence refer to instru ment by model number and full serial number Modei 86222A B Operation SECTION 111 OPERATION 3 1 INTRODUCTION 3 2 This operating section explains the function of the controls and indicators of the Model 86222A B RF Plug in It describes typical operat ing modes in a measurement system 3 3 PANEL FEATURES 3 4 Front and rear panel features are described in Figures 3 1 and 3 2 Description numbers match the numbers on the illustration 3 5 OPERATOR S CHECKS 3 6 The Operator s Checks Figure 3 3 allow the operator to make a quick evaluation of the in strument s main function prior to use These checks assume that the 86222A B RF Plug in is installed in an 8620C Sweep Oscillator mainframe The checks cover the RF Plug in and mainframe therefore if the correct indications are not ob tained trouble may be in either of the units If the RF Plug in is suspected follow the troubleshooting chart in Section VIII to isolate the problem 3 7 OPERATING INSTRUCTIONS 3 8 General Operating Procedure 3 9 Figure 3 4 shows general operating proce dures with the Model 8620C 86222A B Sweep Oscillator conn
12. pe out had PUA wee eee ees HP 182C 1802A 1820C Power Meter Power Sensor Crystal Detector 10 dB Attenuator HP 8491A Option 010 Power Splitter HP 11667A For power meter leveling sweep rates should be slower than 10 sec sweep to ensure proper leveling due to the slow response of the power sensor PROCEDURE 1 Connect equipment as shown in test setup 2 Set controls as follows 8620C START MARKER Left hand end frequency selected STOP MARKER Right hand end frequency selected Figure 3 9 External Power Meter Leveling 1 of 2 Operation Model 86222A B EXTERNAL POWER METER LEVELING 8620C cont d TRIGGER essen anerkennen INT TIMESEOONDS Sun se 100 10 TIME SECONDS Vernier 0000002 eee Fully clockwise 1 kHz SQ WAVE OFF Rear Panel OFF DISPLAY BLANKING OFF Rear Panel DISPLAY BLANKING 86222A B Be OUR 4 ee en ON POWER LEVEL ios is csi Sansa Fully clockwise ALC ee er Ses ace fice aR ow Rass boas ete at MTR Power Meter ALC GAIN ce ewan 0 KRN N ceed vere eed swans ee Fully clockwise FM NORM PL Rear Panel NORM Normal Press 8620C LINE pushbutton switch to turn on mainframe The LINE switch and FULL SWEEP pushbutton should light indicating FULL SWEEP mode is selected Select range on power meter to obtain indication near top third of meter scale Adjust 86222A B POWER LEVEL control counterclockwise until leveling across band occurs as shown in Figure 3 6 If oscillatio
13. position shown in Figure 2 2 c Depress mainframe front panel BAND se lect lever shown in Figure 2 1 to rotate frequency scale drum until desired scale position is accessible NOTE The frequency scale for the 86222A B RF Plug in may be installed in any fre quency scale drum position If necessary to remove a frequency scale exert a pressure OUTWARD away from drum on right hand edge of scale d Insert frequency scale so key a 1 16 inch long 1 2 inch wide protrusion on left end of scale 2 1 Installation Model 86222A B Table 2 1 Model 86222A B Mating Connectors 1 r Connector Mating Connecto _ on Instrument Industry Identification HP Part No Alternate Sources Ji MARKER EXT IN Type BNC male connector 1250 0256 Amphenol 31 202 1021 PUT 86222B only UG 88 U Bendix 12638 3 J2 MARKER OUTPUT 86222B only Specialty Connector 28P118 1 J4 ALC EXT INPUT J5 FM J6 FREQ REF J3 RF OUTPUT Type N male connector 1250 0882 Bendix 30481 2 UG 21G U J3 Rear RF OUT Specialty Connector 25P117 2 Option 002 004 DETAIL VIEW OF MAINFRAME FRONT PANEL LATCH HANDLE SHOWN IN LOCKED POSITION FRONT PANEL LATCH HANDLE SHOWN IN DISENGAGED POSITION FREQUENCY SCALE DRUM RF PLUG IN LOCKING PIN Figure 2 1 Installation of Frequency Scale and RF Plug in X LA Model 86222A B fits into notch in roller on left hand edge of drum see Figure 2 2 e CAUTI
14. symbol The appara tus will be marked with this symbol when it is necessary for the user to refer to the instruction manual in order to protect the apparatus against damage 5 Indicates dangerous voltages L Earth Terminal The WARNING sign denotes a hazard It calls attention to a procedure practice or the like which if not correctly performed or adhered to could result in in jury or loss of life Do not pro ceed beyond a WARNING sign until the indicated conditions are fully understood and met The CAUTION sign denotes a hazard It calls attention to an operating procedure practice or the like which if not correctly performed or adhered to could result in damage to or destruc tion of part or all of the equip ment Do not proceed beyond a CAUTION sign until the indica ted conditions are fully under stood and met CAUTION 1 13 Service 1 14 Although this instrument has been manu factured in accordance with international safety standards this manual contains information cau tions and warnings which must be followed to insure safe operation Service should be performed only by qualified service personnel and the follow ing warnings should be observed 1 1 General Information WARNINGS Any maintenance or repair of the opened instrument under voltage should be avoided as much as possible but if necessary should be carried out only by skilled persons who are aware of the haz ard involved
15. 1 shows the HP Model 86222A B RF Plug in the dial scale HP Part No 86222 20029 to be mounted in the 8620A C mainframe the RF Test cable HP Part No 86290 20032 for testing and troubleshooting the RF section and a Resistive Barrel HP Part No 5061 1015 for simultaneous RF BLANKING and 86222B Inten sity Marker operation supplied with 86222B only 1 33 EQUIPMENT REQUIRED BUT NOT SUPPLIED 1 34 To have a complete operating sweep oscil lator unit the Model 86222A B RF Plug in must be installed in an HP Model 8620C mainframe HP Model 8620A mainframes with serial prefixes 1332A and below require a modification for HP Model 8410B Network Analyzer compatibility over multi octave sweeps NOTE All 86222A B operation and mainte nance procedures in this manual are set up using the HP Model 8620C main frame The procedures also apply to the 8620A mainframe but the controls are different 1 35 EQUIPMENT AVAILABLE 1 36 Service Accessories 1 37 Service Accessories for the 86222A B RF Plug in are available for convenience in aligning and 1 3 General Information Model 86222A B Table 1 1 Specifications for 86222A B in 8620C SPECIFICATIONS FREQUENCY Frequency Range Calibrated 10 MHz to 2 4 GHz Frequency Accuracy 25 C CW Mode lt 10 MHz All Sweep Modes Sweep Time gt 0 1 Sec lt 15 MHz Frequency Stability With Temperature lt 500 kHz C With 10 Line Voltage Change lt
16. 6 for typical oscilloscope display of unleveled and leveled RF power output 6 Set 8620C MARKERS Switch O to INTEN position and marker should appear on oscillo scope trace as intensity spot Adjust oscilloscope intensity for best contrast Set MARKER switch to AMPL position and marker should appear on oscilloscope trace as a pip Set MARKER switch to OFF 86222B ONLY 7 Press 8620C AF pushbutton and AF and CW pushbuttons should light Discon nect BNC cable from Z AXIS OUTPUT O and connect it to MARKER OUTPUT connec tor Set MARKERS MODE switch to LF and adjust AF control for between 2 to 8 markers on oscilloscope display Markers should appear on oscilloscope as intensity spots Adjust oscilloscope intensity for best contrast Set MARKERS MODE switch to _J7 L and markers should appear as dropouts on the oscilloscope trace Set MARKERS MODE switch to AMPL and markers should appear as pulses Changing MARKERS FREQ MHz switch position should change marker frequency Figure 3 3 Operator s Checks 3 of 3 3 7 Operation Model 86222A B TYPICAL SWEEP OPERATION FRONT Figure 3 4 Typical Sweep Operation 1 of 5 3 8 Model 86222A B Operation TYPICAL SWEEP OPERATION ANKIN SWEEP RF BL G OSCILLATOR PLUG IN P ag p x O H ita I 20002 SWEEP RF OUT OUTPUT DEVICE UNDER TEST gt DETECTOR N POWER DETECTOR SPLITTER NOTE fier a broadband or narrowband fil
17. B SWEEP RF TO HP 8755A BNC TEE Z AXIS INPUT RESISTIVE BARREL 9 The MODULATION DRIVE from 8755A must be connected directly to rear panel EXT AM connector This provides the required modulation without using an external modula or and its accompanying losses 10 Adjust 182C Oscilloscope controls for display of reference signal With CHANNEL A OFF SET dB thumbwheel switches set at 15 dB losses in the Power Splitter and 10 dB Attenua or are compensated for and reference signal should be near center graticule This position may be used as a zero reference level for measurements such as insertion loss ON OFF ratio and spurious signals 11 Press DISPLAY pushbutton The oscilloscope display is the output of device under test Press dB DIV 5 or 1 as required to increase sensitivity and obtain better resolution 12 Press DISPLAY A R to display signal level of A in dB minus signal level of R in dB Aye Ra A R 13 A marker is added to the sweep by selecting correct position of 8620C MARKER slide switch O Set MARKER slide switch to INTEN position Marker should appear as high intensity dot on trace of display instrument by intensity modulating the Z axis Intensity modulation signal is available at rear panel Z AXIS output 14 Pressing AF pushbutton switch o lights both AF and CW 6 controls Center frequency is selected by CW control and indicated by location of white pointer 0 on top dial Amount of deviation
18. D 16 Pages Zu Printed in U S A 86222 90009 Model 86222A B ERRATA Cont d Page 1 8 Table 1 4 Change Power Meter and Power Sensor to Power Meter and Thermistor Mount and Model numbers to HP 432 A 8478B Page 2 4 Table 2 2 Change Power Meter and Power Sensor to Power Meter and Thermistor Mount and Model numbers to HP 432A 8478B Page 2 6 Paragraph 2 28 In Figure 2 4 change Power Sensor to Thermistor Mount In EQUIPMENT list change Power Meter model number to HP 432A change Power Sensor to Thermistor Mount and model number to HP 8478B Page 2 7 Paragraph 2 29 In EQUIPMENT list change Power Meter model number to HP 432A change Power Sensor to Thermistor Mount and model number to HP 8478B Page 3 7 Figure 3 3 3 of 3 Change step 3 to Depress LINE pushbutton switch 122 to turn on mainframe With mainframe on LINE 22 and FULL SWEEP START MARKER 0 pushbutton should light Change step 6 to Set 8620C Markers switch O to INTEN position and 3 markers should appear on oscilloscope trace as intensified spots Adjust oscilloscope intensity for best contrast Set MARKER switch to AMPL position and markers should appear on oscilloscope trace as a pip Set MARKER switch O to OFF Page 3 13 Figure 3 5 Change callouts to indicate a 10 MHz to 2 4 GHz range Page 3 13 Figure 3 6 Change callout to 0 5 dB Page 3 14 Figure 3 8 In equipment setup change Power Sensor to Thermistor Mount In EQUIPMENT l
19. IE 1905A 1 2 5 7 1815A 1 2 3 4 ER 4 P 2035A 1 2 5 7 8 1832A 1 2 3 4 5 ke LA 1835A 1902A 1 2 3 4 5 6 1905A 1 2 3 4 5 6 7 Be NEW ITEM r 2035 A 123 4 5 6 7 8 ich ERRATA Title page Change first two paragraphs under SERIAL NUMBERS to read This manual applies directly to HP Model 86222A with serial prefix 1636A and to HP Model 86222B with serial prefix 1628A With changes described in Section VII this manual also applies to HP Model 86222A prefixes 1516A 1529A and 1606A and to HP Model 86222B prefixes 1522A 1552A 1601A and 1604A Page 1 0 Figure 1 1 Change the part number of the scale to 86222 20029 Page 1 4 Table 1 1 Change footnote 4 to Use HP Model 432A power meter sweep duration gt 10 seconds Page 1 5 Table 1 2 under Marker Output Power Output 3 to 13 dBm Change Amplitude Mode 0 5 dB to Amplitude Mode gt 0 5 dB internally adjustable Page 1 6 Table 1 3 Change U4 for options 002 and 002 004 to HP Part No 86222 60055 NOTE Manual change supplements are revised as often as necessary to keep manuals as current and accurate as possible Hewlett Packard recommends that you periodically request the latest edition of this supplement Free copies are available from all HP offices When requesting copies quote the manual identification information from your supplement or the model number and print date from the title page of the manual 20 AUGUST 1980 is O HEWLETT PACKAR
20. ING 86222A B REV OUT PULP m eek sch yank ate bakin be et een E ON POWER LEVEL ocio e a a irn Fully clockwise ALO A ae AE ende ee EXT ALO GAIN A ee Cee a ees Fully clockwise FM NORM PL Rear Panel 1 2 2 0 000 000 0200 e NORM Normal 3 Press 8620C LINE pushbutton switch to turn on mainframe The LINE switch and FULL SWEEP pushbutton should light indicating FULL SWEEP mode is selected 4 Adjust ALC GAIN and POWER LEVEL controls fully clockwise for maximum RF power OUTPUT and maximum ALC loop gain One of the conditions shown in Figures 3 5 or 3 6 should be displayed on oscilloscope If trace is unleveled or partially leveled as shown in Figure 8 5 and UNLEVELED lamp is on turn POWER LEVEL control counterclockwise until trace is level see Figure 3 6 If ALC loop is too high oscillations may occur as shown in Figure 3 7 To remove oscillations reduce ALC loop gain by turning ALC GAIN control counterclockwise 5 To use leveled RF power output for testing external equipment make connection at point marked Leveled Power Output Figure 3 8 External Crystal Detector Leveling 3 of 3 Model 86222A B Operation EXTERNAL POWER METER LEVELING SWEEP RF OSCILLATOR PLUG IN RECORDER OUTPUT RF OUTPUT OSCILLOSGOPE EEE POWER p a j gt j POWER SPLITTER wi l K CRYSTAL ATTEN LEVELED DETECTOR UATOR POWER Se Ae EQUIPMENT Sweep Oscillator HP 8620C RF Plug in HP 86222A B Os illosc
21. MHz markers are present and stable up to 1 GHz 2 9 Installation 2 31 STORAGE AND SHIPMENT 2 32 Environment 2 33 The instrument may be stored or shipped in environments within the following limits Temperature 0 000000 0 00 40 C to 75 C Humidity 5 05 09 say sinh tas Up to 95 relative Altitude 15240 meters 50 000 feet The instrument should also be protected from temperature extremes which cause condensation within the instrument 2 34 Packaging 2 35 Original Packaging Containers and materials identical to those used in factory packaging are available through Hewlett Packard offices If the instrument is being returned to Hewlett Packard for servicing attach a tag indicating the type of ser vice required return address model number and full serial number Also mark the container FRA GILE to assure careful handling In any correspon dence refer to the instrument by model number and full serial number 2 10 Model 86222A B 2 36 Other Packaging The following general in structions should be used for re packaging with commercially available materials a Wrap instrument in heavy paper or plastic If shipping to Hewlett Packard office or service center attach tag indicating type of service re quired return address model number and full serial number b Use strong shipping container A double wall carton made of 350 pound test material is adequate c Use enough shock
22. ON To prevent damage to frequency pointers when bandswitch drum is rotated make certain that frequency scale is firmly in place and flush with band drum edges Push inward on right hand edge of fre quency scale to snap it into place on frequency scale drum f Return front panel to upright closed position and while pushing inward lightly on top of front panel re engage front panel latch handle by pushing it upward to lock positions as shown in Figure 2 1 inset view 2 18 RF Plug in Installation and Removal 2 19 Installation To install RF Plug in proceed as follows a If mainframe power is ON press main frame LINE switch to OFF position BAND INDICATOR NOTCH FREQUENCY SCALE DRUM Installation b Position latch handle located on left side of RF Plug in so it is perpendicular to front panel Portion of handle with rectangular cut out should be facing forward and portion with notch should be facing rear of RF Plug in c Slide RF Plug in into mainframe towards rear of compartment RF Plug in latch handle will engage a locking pin shown in Figure 2 1 inside mainframe and exposed portion of latch handle will start to move downward d Push latch handle downward while still pushing inward on RF Plug in until latch handle is flush with front panel 2 20 Removal To remove RF Plug in proceed as follows a Push inward on top of latch handle and pull forward and up on bottom of latch handle b W
23. OUTPUT 100B ATTENUATOR Figure 2 3 Frequency Range and Accuracy Test Setup Sweep Oscillator HP 8620C RF Plug in A HP 86222A B Frequency Counter HP 5340A 10 dB Attenuator a HP 8491A Option 010 Connect equipment as shown in Figure 2 3 Connect frequency counter through a 10 dB attenuator to the 86222A B RF OUTPUT connector Press 8620C LINE switch to the ON position Set controls as follows 8620C START MARKER Pointer 0 02 GHz STOP MARKER Pointer 2 4 GHz MODE oe AE so MANUAL 1 kHz SQ WV OFF Rear panel OFF 86222A B RE ooi 4 2 24 ON POWER LEVEL 13 dBm ALC Switch INT FM NORM PL NORM Allow equipment to warm up for 30 minutes Press 8620C CW pushbuttons Set frequency counter to measure frequencies from 01 GHz to 2 4 GHz Set CW pointer to 01 GHz Frequency counter should indicate 10 MHz 10 MHz Set CW pointer to 1 2 GHz Frequency counter should indicate 1 2 GHz 01 GHz Set CW pointer to 2 4 GHz Frequency counter should indicate 2 4 GHz 01 GHz Press FULL SWEEP pushbutton Set MANUAL control fully counterclockwise Fre quency counter should indicate 20 MHz 15 MHz Set MANUAL control fully clockwise Frequency counter should indicate 2 4 GHz 015 GHz Installation Model 86222A B INCOMING INSPECTION TESTS 2 28 Power Level and Variation Test SPECIFICATION DESCRIPTION EQUIPMENT PROCEDURE 2 6 Maximum Leveled Power 25 C gt 13 dBm Power V
24. Oscillator mainframe 2 8 Interconnections 2 9 For the Model 86222A B RF Plug in to oper ate it must be plugged into an 8620A or 8620C mainframe Connection is made by pushing the RF Plug in into the mainframe so that the plug in interface connector P1 mates with the mainframe connector 2 10 Mating Connectors 2 11 The mating connectors for the HP Model 86222A B RF Plug in are shown in Table 2 1 This table identifies the mating connector for each front and rear panel connector on the RF Plug in and gives the HP Part No and part numbers of alternate sources 2 12 Operating Environment 2 13 Temperature The instrument may be oper ated in temperatures from 0 C to 55 C 2 14 Humidity The instrument may be operated in environments with relative humidity up to 95 However the instrument should also be protected from temperature extremes which cause conden sation within the instrument 2 15 Altitude The instrument may be operated at altitudes up to 4572 meters 15 000 feet 2 16 Frequency Scale Installation 2 17 NOTE lf RF Plug in is installed in mainframe it must be removed to install frequency scale See RF Plug in removal instruc tions in Paragraph 2 20 To install frequency scale proceed as follows a Disengage mainframe front panel latch handle shown in Figure 2 1 by pushing downward on handle while pushing inward lightly on top of front panel b Swing front panel forward and down to
25. PROCEDURE All tests are referenced to the 862224 B RF OUTPUT power set to the specified maxi mum power of 13 dBm Internal AM RF Blanking selected by 8620C RF BLANKING OFF switch ON OFF ratio gt 30 dB Internal AM is checked for RF blanking on off ratio The on off ratio is determined by power level measurement in the RF BLANKING and OFF conditions SWEEP RF OSCILLATOR PLUG IN SPECTRUM ANALYZER anf Figure 2 5 Internal Amplitude Modulation Test Setup Sweep Oscillator 2 2 22 no nn HD 86200 RF Plugin 2 2 2 2 6 ee ew nenn HP 86222A B Power Meter 3 22 0 aa ea HD ABBA Power Sensor 2 2m nme en HP 8482A Spectrum Analyzer a 2 2 nn nenn nn HP 8555A 8552B 141T a Connect equipment as shown in Figure 2 5 Allow 80 minutes warm up time b Set controls as follows Sweep Oscillator START MARKER Pointer 2 1 2 GHZ MARKER SWEEP Pushbutton Depressed On RF BLANKING OFF Rear Panel OFF MODE F dr cc os AUTO TRIGGER e osa ea ge aa a EXT RF Plug in RES a es ee OS ae re ON A a Ia AA ASE A AN FM NORM PL 2 2 22 222222 NORM Spectrum Analyzer BANDWIDTH 10kHz SCAN WIDTH 20MHz DIV 2dBLOG 10 dB LOG LINEAR 10dBLOG 2 7 Installation Model 86222A B INCOMING INSPECTION TESTS 2 29 Internal Amplitude Modulation Test cont d c Adjust 86222A B POWER LEVEL for maximum leveled power
26. ROTE ad eRe SSR PLS WHORE EROS HP 1250 0781 PROCEDURE E NOTE Crystal output signal must be between 10 mVde and 100 mVde Connect equipment as shown in test setup Figure 3 8 External Crystal Detector Leveling 1 of 3 Model 86222 A B Operation EXTERNAL CRYSTAL DETECTOR LEVELING NOTE Between 10 MHz and 50 MHz there are resonant spikes that might be as high as 3 dB in the envelope of the RF feedthrough to the video output These resonances are a function of the load impedance including cable lengths seen by the detector During external leveling at 10 to 50 MHz the resonant spikes may be damped out by insertion of the circuit shown below in the test setup The circuit may be inserted in the line to the EXT INPUT of the RF Plug in HP 10110A BNC M TO DUAL BANANA POST HP 10110A BNC TEE HP 1250 0781 DETAILA 2 Set controls as follows 8620C START MARKER Left hand end frequency selected STOP MARKER Right hand end frequency selected MARKERS ei en Roe SUM wo eee ONS OFF MODE a Panels see Liga KR aos AUTO TRIGGER san ia ar RES ee INT TIME SECONDS Vernier 0 002000 02 eee Fully clockwise 1 kHz SQ WAVE OFF Rear Panel cs scn ara cc ee ee eee OFF DISPLAY BLANKING OFF Rear Panel DISPLAY BLANKING Figure 3 8 External Crystal Detector Leveling 2 of 3 3 15 Operation Model 86222 A B SSS SS SSeS EXTERNAL CRYSTAL DETECTOR LEVEL
27. ariation at maximum leveled power Internally Leveled 0 25 dB Maximum leveled power is measured by a power meter Power level variations with in ternal leveling are checked The power variations are measured with a power meter SWEEP RF POWER OSCILATOR _PLUG IN METER OUTPUT 10 dB ATTENUATOR Figure 2 4 Internal Leveling Test Setup Sweep Oscillator HP 8620C RF Plug in 1 0 2 HP 86222A B Power Meter HDP 435A Power Sensor HP 8482A 10 dB Attenuator HDP 8491A Option 010 a Allow 30 minutes warm up time Set controls as follows 8620C START MARKER Pointer 10 MHz STOP MARKER Pointer 2 4 GHz CW Pointer is 2 GHZ MODE MANUAL RE BLANKING OFF Rear panel RF BLANKING 86222A B UP Ga e do SION ALG u 0 GR Gave Sek ds ae NT b Connect equipment as shown in Figure 2 4 c Set 86222A B POWER LEVEL to maximum leveled power UNLEVELED light out d Manually tune 8620C from full CCW to full CW slowly enough for power meter to respond Note maximum and minimum power readings Model 86222A B Installation INCOMING INSPECTION TESTS 2 28 Power Level and Variation Test Cont d e Difference between maximum and minimum power readings should be lt 0 5 dBm Minimum reading should not be lower than 3 dBm 2 29 Internal Amplitude Modulation Test SPECIFICATION DESCRIPTION EQUIPMENT
28. d Adjust spectrum analyzer to center RF carrier on display e Set LOG REF LEVEL on spectrum analyzer to top graticule line f Set 8620C RF BLANKING OFF switch to RF BLANKING and note the difference in power level ON OFF ratio The ON OFF ratio should be greater than 30 dB 2 30 Marker Range Test 86222B Only SPECIFICATION Marker Frequency Range 10 and 50 MHz Markers 10 MHz to 2 4 GHz 1 MHz Marker 10 MHz to 1 GHz DESCRIPTION Marker frequency range is determined by using an oscilloscope and crystal detector to display the markers OSCILLOSCOPE MARKER OUTPUT Z AXIS INPUT CRYSTAL 10 dB ATTENUATOR DETECTOR OTP Figure 2 6 Marker Range Test Setup EQUIPMENT Sweep Oscillator 2 2 HP 8620C RF Plugin 4 HP 86222B Oscilloscope 2 2 2 HP 182C 1802A 1820C Crystal Detector HP 423A 10 dB Attenuator HP 8491A Option 010 PROCEDURE a Connect equipment as shown in Figure 2 6 Set 8620C LINE switch to ON and allow 30 minutes warm up time b Set controls as follows Model 86222A B Installation INCOMING INSPECTION TESTS 2 30 Marker Range Test 86222B Only cont d 8620C CW Pointer 2 1 100 MHz AF Pointer sn a a tee dee e TBO Mz MODE fib ae wie tee AUTO TRIGGER etd c INT TIME SECONDS Switch 1to 01 TIME SECONDS Vernier Fully Clockwise RF BLANKING OFF 2 2 2 2 RF
29. ected in a typical measurement test setup Many other applications are possible but are not shown because the general operating procedure is the same 3 10 3 11 The most convenient method of RF output leveling is internal leveling A portion of the RF output is coupled out of a direction detector pro ducing a de voltage proportional to the RF output signal This detected de voltage is applied to the automatic leveling control circuit ALC The Operator s Checks in Figure 3 3 are performed in the internal leveling mode Internal Leveling 3 12 3 13 Power may be leveled externally using a power splitting tee or directional coupler and crystal detector This leveling system uses a power splitting tee to sample the RF output signal and a crystal detector to produce a de voltage propor tional to RF signal level The detector voltage is compared with an internal reference voltage and the difference voltage changes the output power level to keep it constant at the output Instead of a power splitting tee a directional coupler may be used to sample the RF signal for the leveling loop Directional couplers are usually narrow band whereas the power splitting tee is flat over a wide frequency range The advantage of a directional coupler is that it does not have a 6 dB loss like the power splitting tee therefore a higher maximum leveled power output may be obtained To place the crystal detector leveling loop in operation use the
30. equency Range 10 MHz to 2 4 GHz Oscilioscope with Dual Vertical Amplifier Dual Trace with 10 1 probes Trace Vertical Amplifier Bandwidth 20 MHz minimum and 10 1 probes Vertical Sensitivity 5 mV Div Horizontal Sweep Rate 1 us Div minimum DC Digital Voltmeter Range 50V to 50V Accuracy 0 006 Input Impedance 10 megohms minimum Power Splitter Frequency 10 MHz to 2 4 GHz Attenuation in each arm 6 dB Service Boards See Figure 1 3 Extender Cable See Figure 1 3 Adjustment Tool See Figure 1 3 Crystal Detector Frequency 10 MHz to 2 4 GHz SWR lt 1 2 to 2 4 GHz Polarity Negative Power Meter and Power Frequency 10 MHz to 2 4 GHz Sensor Range 10 dBm to 20 dBm 3 dB Attenuator Attenuation 3 dB 0 3 dB Frequency De to 2 4 GHz 10 dB Attenuator Attenuation 10 dB 0 5 dB Frequency De to 2 4 GHz 20 dB Attenuator Attenuation 20 dB 0 5 dB Frequency De to 2 4 GHz BNC Tee Connectors 1 male and 2 female Swept Amplitude Analy Frequency Range 15 MHz to 2 4 GHz zer and Oscilloscope Mainframe Detectors Frequency Response 15 MHz to 2 4 GHz Error lt 1 3 dB Impedance 50 ohms HP 8620C HP 8555A 8552B 141T HP 182C 1801A 1820C HP 3490A HP 11667 A HP 08620 60037 HP 08620 60032 HP 8830 0024 HP 423A HP 435A 8482A HP 8491A Opt 003 HP 8491A Opt 010 HP 8491A Opt 020 HP 1250 0781 HP 8755A 182T HP 11664 P A T
31. from selected CW frequency is set by AF control The AF scale G is short scale directly above AF control 86222B ONLY 15 Harmonic crystal intensity markers are selected when the MARKER MODE switch 113 is in the LIT position They are normally used with the 8620C in the AF mode with a AF selected which displays from 2 to 8 markers on the CRT screen Harmonic marker frequency selection is made with the MARKER FREQ MHz switch Figure 3 4 Typical Sweep Operation 5 of 5 Model 86222 A B Operation 0 4 dB 2 0 GHz 6 2 GHz Figure 3 5 Unleveled RF Power Output Figure 3 6 Leveled RF Power Output 0 VBC POWER OUTPUT ALC LOOP OSCILLATION Eos a zul Figure 3 7 Oscillations with ALC Loop Gain Too High 8 18 Model 86222A B Operation EXTERNAL CRYSTAL DETECTOR LEVELING r BEER POWER eee OSCILLOSCOPE METER PROCEDURE STEP 1 SWEEP F OSCILLATOR PLUG IN aD POWER SENSOR 9 os EIN 7 1008 f CRYSTAL 1048 ATTEN DETECTOR ATTENUATOR H UATOR j it levere POWER REIMER SE OUTPUT EQUIPMENT Sweep Oscillators iia Ra ea Ran HP 8620C RE Plugim A a anne HP 86222A B Oscilloscope er see aus HP 182C 1802A 1820C Power Meere ee ee Ope Se HP 435A Crystal Detector lt da TE 24 wh eee sce bs an asien HP 423A Power Splitter zn er ass ala ae HP 11667 A 10 dB Attenuator 2 required 0 HP 8491A Option 010 Power SONG uam abba dew RS ka es HP 8482A B
32. h 10 1 probes Trace Vertical Ampli fier and 10 1 probes Frequency Counter Power Meter and Power Sensor Crystal Detector Power Splitter 10 dB Attenuator 3 dB Attenuator Bandwidth 20 MHz minimum Vertical Sensitivity 5 mV Div Horizontal Sweep Rate 1 us Div minimum Range 1 MHz to 2 4 GHz Frequency 10 MHz to 2 4 GHz Range 10 dBm to 20 dBm Frequency 10 MHz to 2 4 GHz SWR lt 1 2 to 2 4 GHz Polarity Negative Frequency 10 MHz to 2 4 GHz Attenuation in each arm 6 dB Attenuation 10 dB 0 5 dB Frequency De to 2 4 GHz Attenuation 3 dB 0 3 dB Frequency De to 2 4 GHz 2 27 Frequency Range and Accuracy HP 182C 1801A 1820C HP 5340A HP 435A 8482A HP 423A HP 11667A HP 8491A Option 010 HP 8491A Option 003 10 MHz CW mode Approach desired CW frequency from low frequency end of SPECIFICATION Frequency range 10 MHz to 2 4 GHz Frequency accuracy at 25 C ambient band 15 MHz All Sweep Modes Sweep Time gt 0 1 sec DESCRIPTION The CW mode is checked at three frequencies across the band to determine if the RF signal is within frequency tolerance Start stop sweep is then selected and the frequency at each end point is checked 2 4 Model 86222A B Installation INCOMING INSPECTION TESTS 2 27 Frequency Range and Accuracy Cont d EQUIPMENT PROCEDURE SWEEP ILLATOR OSC RF PLUG IN FREQUENCY COUNTER ar
33. h proper attention to to different switches PROCEDURE 1 Connect equipment as shown in test setup 2 Set controls as follows 8620C BAND 0 01 2 4 GHz 3 6 START MARKER pointer Left hand end mark on scale CW MARKER pointer ae A MPa ana Middle mark on scale STOP MARKER pointer Right hand end mark on scale MARKERS OFF MODE Figure 3 3 Operator s Checks 2 of 3 Model 86222 A B Operation OPERATOR S CHECKS 8620C Cont d TRIGGER nn nat ci INT TIME SECONDS UL occ 0 1 to 0 01 TIME SECONDS Vernier W 0 2 2 cence Clockwise Rear Panel 1 kHz SQ WV OFF Loco OFF Rear Panel DISPLAY BLANKING OFF G DISPLAY BLANKING Rear Panel RF BLANKING OFF Lc OFF 86222A B ALC cep isbn canted nik sale nase SLOPE coco Rear Panel FM NORM PL MARKERS MODE 86222B only MARKERS FREQ MHz 86222B only 3 Depress LINE pushbutton switch to turn on mainframe With mainframe on LINE O START MARKER and STOP MARKER pushbuttons should light 4 Check that the instrument is sweeping correctly This is indicated by continuous signal level line below zero volt dc level on oscilloscope 5 UNLEVELED light may be lit If UNLEVELED light is lit reduce output power by 86222A B POWER LEVEL control counterclockwise until UNLEVELED light goes out This is adjustment point for maximum leveled power Oscilloscope trace should be leveled Refer to Figures 3 5 and 3
34. he reference oscillator to the source If the CW frequency starts to drift the phase difference between the CW frequency and the reference frequency reference oscillator is Model 86222A B detected producing a de voltage The de voltage is a correction signal which restores the CW fre quency to its previous point Stability of this CW frequency is determined by the stability of the reference oscillator 3 20 OPERATOR S MAINTENANCE 3 21 Power circuits for the Model 86222A B are fused in the mainframe See the 8620C Operating and Service Manual for fuse replacement FRONT PANEL FEATURES 7 852228 RF PLUG IN 108 TAE UNLEVELED pa MARKERS 0 FREQ MHZ ERI INPUT ps OUTPUT Figure 3 1 Front Panel Controls Connectors and Indicators 1 of 2 3 2 Model 86222A B o MARKER OUTPUT lamp 862228 only Operati RF ON OFF switch Turns RF power on and off This is useful when zeroing power meter UNLEVELED lamp Lights if POWER LEVEL is set too high to permit leveling over sweep range selected MARKER FREQ MHz switch 862228 only Selects 50 10 or 1 MHz internal crystal markers EXT position selects markers generated from an external frequency source MARKER EXT INPUT BNC connector 86222B only Input for external marker frequency source Maximum signal input 1 volt RMS Lights in LTF MODE when marker is coincident with RF OUTPUT frequency E
35. hen exposed portion of latch handle is in a position perpendicular to RF Plug in front panel it is disengaged from locking pin Figure 2 1 and RF Plug in may be removed by pulling forward on latch handle DEPRESSION Figure 2 2 Mainframe Front Panel in Open Position 2 3 Installation 2 21 Installation of Options 2 22 To install or remove options refer to the in stallation instructions in the appendixes for the applicable options 2 23 MODIFICATIONS 2 24 Unmodified 8620A mainframes which in clude prefixes 1332A and below will not operate for continuous multi octave frequency measure ments with the HP Model 8410B Network Analy zer To modify 8620A mainframes with serial Model 86222A B prefixes 1332A and below order the 8620A Mainframe Modification Kit HP Part Number 08620 60099 Service Note 8620 A 6A explains the modifcation 2 25 INCOMING INSPECTION TESTS 2 26 The following procedures test selected speci fications to determine that the instrument is func tioning properly for the requirements of incoming inspection The recommended test equipment is listed in Table 2 2 Equipment that meets or ex ceeds the critical specifications may be substituted Table 2 2 Recommended Test Equipment for Incoming Inspection Tests ak FPN Recommended Instrument Critical Specifications Model Sweep Oscillator 86204 is only substitution HP 8620C Oscilloscope with Dual Vertical Amplifier Dual trace wit
36. ible with the Hewlett Packard Model 8755A Swept Amplitude Analyzer For all swept amplitude measurements the 27 8 kHz square wave modulation is applied directly the the 8620C rear panel EXT AM connector This eliminates the need for an external modulator thus providing maximum available power to a test setup Section II contains techniques and instructions for using the 8755A for testing and measuring microwave devices 1 40 Power Meters and Crystal Detectors 1 41 The Hewlett Packard Model 435A Power Meter may be used for external leveling of the Model 86222A B Plug in External leveled power is 1 6 Front Panel Board Assembly Front Panel Board Assembly Panel Front Upper Panel Front Upper Attenuator Bushing 70 dB Step Attenuator Knob Pointer RF Cable Directional Detector to Attenuator RF Cable Attenuator to Rear Panel RF OUTPUT also available using an HP 423A Crystal Detector Section III contains detailed instructions for using the external power leveling systems 1 42 Model 8410B 8411A Network Analyzer 1 43 The Model 8620C 86222A B Sweeper pro vides multi octave phase gain measurement capabil ity with the Hewlett Packard Model 8410B Net work Analyzer System The combination of the Model 8410B Network Analyzer the Model 8411A Frequency Converter and an appropriate display plug in forms a phasemeter and a ratiometer for direct phase and amplitude ratio measurement of RF voltages These measurement
37. ist change Power Meter model number to HP 432A change Power Sensor to Thermistor Mount and model number to HP 8478B Page 3 15 Figure 3 8 Change Model Number of BNC To Dual Banana Post adapter to read HP 10110A OR HP 10110B 2 places Page 3 17 Figure 3 9 In equipment setup change Power Sensor to Thermstor Mount In EQUIPMENT list change Power Meter model number to HP 432A change Power Sensor to Thermistor Mount and model number to HP 8478B Page 4 2 Paragraph 4 8 Change Frequency Stability Specification to Frequency Stability With Temperature lt 500 kHz C With 10 Line Voltage Change lt 20 kHz With 3 1 Load SWR All Phases lt 10 kHz With 10 dB Power Level Change lt 100 kHz A General Information Model 86222A B peit 86222B RF PLUG IN SCALE FOR 8620A C 86222 90029 RF TEST CABLE RESISTIVE BARREL 86290 20032 862228 ONLY 5061 1015 Figure 1 1 Model 86222B RF Plug In with Accessories Supplied Model 86222A B General Information SECTION I GENERAL INFORMATION 1 1 INTRODUCTION 1 2 This Operating and Service manual contains information required to install operate test adjust and service the Hewlett Packard Model 86222A B RF Plug in Figure 1 1 shows the instrument and accessories supplied This section covers instrument identification description options accessories specifications and other basic information 1 3 Supplied with this manua
38. l is an Operating In formation Supplement The Supplement is a copy of the first three sections of the manual and should be kept with the instrument for use by the operator 1 4 Also listed on the title page of this manual is a Microfiche part number This number can be used to order 4 x 6 inch microfiche transparencies of the manual Each microfiche contains up to 60 photo duplicates of the manual pages The micro fiche package also includes the latest Manual Changes supplement as well as all pertinent Service Notes 1 5 SPECIFICATIONS 1 6 Instrument specifications are listed in Table 1 1 These specifications are the performance stan dards or limits against which the instrument is tested Table 1 2 lists supplemental characteristics Supplemental characteristics are not specifications but are typical characteristics included as addi tional information for the user 1 7 SAFETY CONSIDERATIONS 1 8 General 1 9 This product and related documentation must be reviewed for familiarization with safety markings and instructions before operation This product has been manufactured and tested in ac cordance with Hewlett Packard standards 1 10 Operation 1 11 BEFORE APPLYING POWER maker sure the instrument s ac input is set for the available ac line voltage that the correct fuse is installed and that all normal safety precautions have been taken See Warnings below 1 12 A Safety Symbols Instruction manual
39. n SECTION fi INSTALLATION AND INCOMING INSPECTION TESTS 2 1 INSTALLATION 2 2 This section provides installation instructions for Model 86222A B RF Plug in and its accessories It also includes information about initial inspection and damage claims preparation for using the RF Plug in and packaging storage and shipment and incoming inspection 2 3 INITIAL INSPECTION 2 4 Inspect the shipping container for damage If the shipping container or cushioning material is damaged it should be kept until the contents of the shipment have been checked for completeness and the instrument has been checked mechanically and electrically The contents of the shipment should be as shown in Figure 1 1 and procedures for checking electrical operation are given in Sec tion IV If the contents are incomplete if there is mechanical damage or defect or if the RF Plug in does not pass the performance tests notify the nearest Hewlett Packard office If the shipping con tainer is damaged or the cushioning material shows signs of stress notify the carrier as well as the Hewlett Packard office Keep the shipping mate rials for carrier s inspection The HP office will arrange for repair or replacement without waiting for claim settlement 2 5 PREPARATION FOR USE 2 6 Power Requirements 2 7 When the Model 86222A B RF Plug in is properly installed it obtains all power through the rear interface connector from the HP Model 8620A C Sweep
40. nables accurate selection of CW frequency MARKER OUTPUT BNC Connector 862228 only Output for intensity markers to Z AXIS input of display unit MARKER MODE switch 862228 only Selects amplitude AMPL negative intensity LFL or positive intentsity M 1 marker modes Off position switches markers off ALC EXT INPUT BNC connector Input for external leveling from power meter or crystal detector Sensitivity 10 to 100 millivolts FRONT PANEL FEATURES 8 ALC GAIN control Adjust ALC leveling amplifier gain when system is using an external leveling loop Rotates clockwise to increase ALC loop gain ALC switch Selects INT internal EXT exter nal or MTR power meter power leveling modes ALC SLOPE control Compensates for high fre quency power losses in external RF cables by attenuating power at lower frequencies This com pensation provides a leveled RF signal output The OFF position removes all compensation FREQ CAL control provides fine frequency calibration for 86222A B RF Plug in RF OUTPUT connector Type N 50 ohm RF output connector POWER LEVEL control Adjusts RF power out put Rotate clockwise to increase output power Latch Handle Aids in installing and removing RF Plug in After installing handle locks to hold RF Plug in in place NOTE The front panel changes when Option 002 or 004 is added See Appendix A B or C for these front panel features Figure 3
41. nds Dimensions Height 12 7 cm 5 inches Width 14 7 cm 5 13 16 inches Depth 30 5 cm 12 inches Options Option 002 Zero to 70 dB attenuator Option 004 Rear Panel RF OUTPUT General Information Model 86222A B Table 1 3 Parts Required for 86222A B Options Option en HP Part No Description 002 Al 86222A only 86222 60029 Front Panel Board Assembly A1 86222B only 86222 60020 Front Panel Board Assembly 86222A only 86222 00015 Panel Front Upper 86222B only 86222 00013 Panel Front Upper 86222 20026 Attenuator Bushing U4 08558 60003 70 dB Step Attenuator 0370 1103 Knob Pointer WB 86222 20021 RF Cable Directional Detector to Attenuator w13 86222 20022 RF Cable Attenuator to RF OUTPUT 004 Ws 86222 20019 RF Cable Directional Detector to Rear Panel RF OUTPUT 002 004 A1 86222A only 86222 60029 A1 86222B only 86222 60020 86222A only 86222 00015 86222 00013 86222 20026 86222B only U4 08558 60003 0370 1103 ws 86222 20021 W13 86222 20023 troubleshooting the mainframe and RF Plug in The service accessories kit contains a plug in exten der cable extender boards adjustment tool and RF service cables see Figure 1 3 The service accessories kit may be obtained from Hewlett Packard by ordering Service Accessories Part No 08620 60030 1 38 Model 8755A 182C Swept Amplitude Analyzer and Oscilloscope 1 39 The Model 8620C 86222A B Sweeper is compat
42. ns appear on trace as shown in Figure 3 7 turn ALC GAIN control counterclockwise With proper leveling across the band the 86222A B UNLEVELED light should be out To use leveled RF power output for testing external equipment make connection at point marked Leveled Power Output 3 18 Figure 3 9 External Power Meter Leveling 2 of 2
43. rker Frequency Range Power Output 3 to 13 dBm 50 and 10 MHz Markers 10 MHz to 2 4 GHz 1 MHz Marker 10 MHz to 1 GHz 1Unless otherwise noted all specifications are at 0 to 55 C with plugin installed in an 8620C mainframe Pse also the Supplemental Characteristics Table 1 2 3 4 5 to external AM input Approach desired frequency from low frequency end of band Use HP Model 435A power meter Sweep duration gt 10 seconds Specific requirements for compatibility with HP 8755A 1 6V 27 8 kHz square wave MODULATOR DRIVE output connected 6362228 markers will not operate when sweeping from a high frequency to a low frequency 7 Excludes coupler and detector variation Model 86222 A B General Information Table 1 2 Supplemental Characteristics for 86222A B Installed in 8620C SUPPLEMENTAL CHARACTERISTICS NOTE Values in this table are not specifications but are typical characteristics included for user information FREQUENCY Frequency Accuracy in Remote Programmed Mode Typically 6 MHz Linearity Correlation between frequency and SWEEP OUT voltage 2 MHz Frequency Drift Drift 100 kHz per ten minutes after one hour warm up Frequency Reference Output 1 Volt GHz 1 0 01V POWER OUTPUT Maximum Leveled Power Typically lt 15 dBm Power Variation Across any 50 MHz portion between 30 MHz and 2 3 GHz Typically 0 05 dB Stability with Temperature Change Typically 0 02 BC
44. s can be made on single frequencies and on swept frequencies from 110 MHz to 2 4 GHz The interfacing between the 8410B and the 8620C 86222A B sweeper permits the 8410B to phase lock over the 110 MHz to 2 4 GHz range 1 44 RECOMMENDED TEST EQUIPMENT 1 45 Equipment required to maintain the Model 86222A B is listed in Table 1 4 Other equipment may be substituted if it meets or exceeds the criti cal specifications listed in the table Model 86222A B General Information Name Use Extender Cable 08620 60032 Moves RF Plug in outside mainframe for alignment or service RF Service Cable 2 each 8120 1578 Allows troubleshooting RF circuits Adjustment Tool 8830 0024 Fits miniature adjustment slot on potentiometers RF Connector straight 1250 1158 adapter SMA jack to SMA jack 2 each Adapts RF Service cables from plug to jack Service Board 08620 60037 Allows probing RF Section interface or program ming connector during performance test or troubleshooting 18 Pin Extender Board 5060 2041 Extends mainframe boards for troubleshooting Figure 1 3 Service Accessories Kit HP Part No 08620 60030 General Information Table 1 4 Recommended Test Equipment 1 of 2 Instrument Critical Speeifications Mode Recommended Model 86222A B Use Sweep Oscillator 8620A is only substitution Spectrum Analyzer Fr
45. s possible Hewlett Packard Model 86222A B recommends that you periodically request the latest Manual Changes supplement The supple ment for this manual is identified with this man ual s print date and part number both of which appear on the manual s title page Compliment ary copies of the supplement are available from Hewlett Packard 1 19 For information concerning a serial num ber prefix that is not listed on the title page or in the Manual Changes supplement contact your nearest Hewlett Packard office 1 20 DESCRIPTION 1 21 The HP Model 86222A B is designed as a plug in for the Model 8620C mainframe The main frame and 86222A B RF Plug in make up a solid state sweep signal source with a frequency range of 10 MHz to 2 4 GHz in one continuous sweep The Model 86222B provides intensity or amplitude crystal markers at 1 10 or 50 MHz intervals In tensity markers are compatible with most CRT dis play units including the HP Model 8755A Fre quency Response Test Set and HP Model 8410B Network Analyzer Front panel connector MARKER EXT INPUT provides the capability of generating markers using an external source 1 22 The RF output of the instruments is con trolled by the front panel POWER LEVEL control Power can be leveled externally or internally across the band using a conventional power samp ling and feedback technique The automatic level control ALC switch selects the mode of leveling either internal
46. ter or isolator EQUIPMENT Sweep Oscillator RF Plug in Swept Amplitude Analyzer Oscilloscope Detectors 2 required Power Splitter PROCEDURE 1 Connect equipment as shown in test setup 2 Set controls as follows 8620C SWEPT AMPLITUDE ANALYZER OSCILLOSCOPE Z AXIS INPUT o o ELLLER esmee REFERENCE ExT HORIZ INPUT MODULATOR DRIVE 27 42 START MARKER pointer CW MARKER pointer STOP MARKER pointer Y The device under test may be any microwave device such as an ampli The following procedure describes generally how to set up the sweeper operation HP 8620C HP 86222A B HP 8755A 182C HP 11664A HP 11667A 01 2 4 GHz Left hand mark on scale Middle mark on scale Figure 3 4 Typical Sweep Operation 2 of 5 Operation Model 86222A B TYPICAL SWEEP OPERATION 8620C cont d MARKERS 2222 2222222222 eeeeeneeneeeen een OFF MODE ann di AUTO TRIGGER lt Q ln nennen nn sun dee INT TIME SECONDS ooo 0 1 to 0 01 TIME SECONDS Vernier 2 2 0 00 000000 Clockwise DISPLAY BLANKING OFF Rear Panel DISPLAY BLANKING 1 kHz SQ WV OFF Rear Panel ooo OFF RF BLANKING OFF Rear Panel DL OFF 86222A B BE a eed ON POWER LEVEL AB Fully clockwise AUC cases erregen INT SLOPE OFF MO ooo bee en OFF FM NORMPL Rear Panel EB FM MARKER MODE 86222B only 2222000 OFF MARKER FREQ MHz 86222B only
47. test setup and procedures in Figure 3 8 External Crystal Detector Leveling 3 14 3 15 Power leveling can be obtained with a power meter and power splitting tee or directional cou pler as shown in Figure 3 9 A sample of the RF output signal is routed to a power meter to produce a de voltage proportional to the RF signal level The de voltage is applied to the 86222A B ALC circuits and compared with an internal reference voltage A difference voltage is produced and amplified by the ALC amplifier before being ap plied as modulator drive to the Modulator Mixer U1 The modulator drive controls the output of the Modulator Mixer to maintain a constant power level External Power Meter Leveling 3 16 External FM 3 17 The 86222A B RF output signal can be frequency modulated using an external modulating signal applied to the 86222A B FM input connec tor The external FM function provides a means of obtaining an output frequency that varies under the control of an external modulating signal A positive going voltage causes output frequency to decrease while a negative going voltage causes out put frequency to increase 3 1 Operation 3 18 Phase Lock Operation 3 19 The 86222A B RF output CW signal may be phase locked using an external phase lock signal applied to the 86222 A B FM input connector The phase lock function provides a means of obtaining a very stable CW frequency by transferring the frequency stability of t
48. voltage of the ac power source BEFORE SWITCHING ON THE MAIN FRAME ensure that the ac line fuse is of the required current rating and type normal blow time delay etc 1 15 INSTRUMENTS COVERED BY MANUAL 1 16 Attached to the instrument is a serial num ber plate Figure 1 2 The serial number is in two parts The first four digits and the letter are the serial number prefix the last five digits are the suffix The prefix is the same for all identical in struments it changes only when a change is made to the instrument The suffix however is assigned sequentially and is different for each instrument The contents of this manual apply to instruments with the serial number prefix es listed under SERIAL NUMBERS on the title page SERIAL NUMBER PREFIX SUFFIX Figure 1 2 Typical Serial Number Plate 1 17 An instrument manufactured after the printing of this manual may have a serial number prefix that is not listed on the title page This unlisted serial number prefix indicates the instru ment is different from those described in this man ual The manual for this newer instrument is ac companied by a yellow Manual Changes supple ment This supplement contains change informa tion that explains how to adapt the manual to the newer instrument 1 18 In addition to change information the sup plement may contain information for correcting errors in the manual To keep this manual as cur rent and accurate a
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