HP Wheelchair B User's Manual
Contents
1. EFFECTIVE SOURCE MATCH SPECIFICATION The effective source match of the HP 85044A B from 300 kHz to 2 MHz is 15 dB The effective source match of the HP 85044A is 20 dB from 2 MHz to 1 3 GHz and 16 dB from 1 3 GHz to 3 GHz The effective source match of the HP 850448 is 17 dB from 2 MHz to 1 3 GHz and 16 dB from 1 3 GHz to 2 GHz DESCRIPTION This procedure determines the effective source match of port 1 and port 2 by examining the calibration coefficient arrays These arrays are generated during measurement calibration The arrays are the difference between the measured known Calibration standards and ideal modeled data Thus the calibration coefficient arrays are a direct indication of performance because they represent the sys tematic errors of the test set HP 8753A NETWORK ANALYZER KP 85044A 8 TRANSMISSION f gem REFLECTION p TEST SET w SHORT LOAD Figure 4 4 Source Match Test Setup HP 85044A B Performance Tests EQUIPMENT HP 85044A HP 85044B Network analyzer HP 8753A HP 8753A RF cable set HP 118518 HP 11851B Calibration kit HP 85031B HP 85036B PROGEDURE 1 Connect the test set to the network analyzer as shown in Figure 4 4 turn on the HP 8753A and press PRESET Allow 30 minutes for warm up 2 Onthe HP 8753A press MENU POWER 1 0 x1 to set the network analyzer output power to 10 dBm Then press AVG IF BW 1 0 0 x1 to reduce the IF bandwidth t2. OPERATING AND SERVICE MANUA vr REELT MEET rr NE IEA ss nspa AAA SEN ncn Rane RE Danz ATTEN UAT KON J8 z dan Mas 20 BC Mak y e we GAL ALLE TT i 0 paran 85044A TRANSMISSION REFLECTION TEST SET 200842 3 9 Ges Gef k 3528 A BENN SN E De hore ae 1 f W TABLE OF CONTENTS Section 1 General Information Jurte Lee rs Using the HP85044A B Bin Instruments Covered by Manual Description and Operating Characteristics of the Instrument DIAS Loren Accessories Supplied Accessories Available Calibration and Accessory Kits ae Cable SEE curras cda dan ds Operating and Safety Precautions SENDE ses Recommended Test Equipment SPECHIEAHORS maroni Section 2 Installation da ige etle en EEN isla INSOSCUON yu ru u 5 En Environmental Considerations Operation and Storage Preparation for Use irrita Positioning the Test Set Connecting the Test Set Mating Connectors Power and Control Connections Signal Path Connections Bias Connection Packaging era HP 85044A B Section 3 Operation IMFOOUCTION ia ads Operator s Check FAUDMER seres
3. Major Assemblies bottom internal view MP13 M r MP2 MP3 typical places underneath MP4 typical 4 places underneath MP21 MP14 Mfr pin 5086 7446 5086 7448 85044 60001 1250 0083 5061 5386 5061 5386 5061 5386 0370 2874 08502 20005 08502 20004 08502 20003 08502 20011 08502 20006 HP 85044A B HP 85044A B MP18 WO A2J2 AiJ2 TEST AiJ1 Figure 6 2 Miscellaneous Parts bottom internal view 1 of 2 Replaceable Parts Aid At J3 A1J6 AT W4 A wi A211 A1J4 W2 W3 RF INPUT A1J5 INCIDENT REFLECTED BIAS INPUT JS TO br R TO D J2 ER Part Description Mir Mir p n 0160 4833 5 i CERAMIC CAPACITOR 022UF 100V 00901 0124022IK1R5CA 08502 00018 9 i MAIN DEGK 28480 8502 60018 2190 0377 g 4 FLAT WASHER NO 6 145 1N 10 04821 OBD 2360 0331 3 4 MACH SCREW 6 32 25 IN LG PAN HEAD POZI 02053 OBD 3050 0105 5 6 FLAT WASHER MTLC NO 4 125 IN ID 04821 QBD 2200 0105 4 8 MACH SCREW 4 40 312 IN LG PAN HD POZI 04771 oap 1400 0110 1 FUSE HOLDER BIPIN AND NUT 04480 080 1400 0112 6 1 FUSE HOLDER CAP 04480 OBD 2110 0424 9 1 FUSE 75A 125V 25X 27 04480 GMW 3 4A 08502 00017 8 i REAR SUB PANEL 28480 08502 00017 08502 00016 7 1 REAR PANEL 28480 08502 00016 2420 0001 5 3 HEX NUT W LKWR 8 32 THD 109 IN THK 04805 OBD 2190 0016 3 1 LOCK WASHER INTL T 3 8 IN 377 IN 1D 02440 2190 0016 2950 0001 B 1 HEX NUT 3 8 32 28480 2950 0001 2190 0104 Q 3 LOCK WASHER INTL T 7 16 IN 439 1N ID 048
4. POCOS r n bs sisi Section 4 Performance Tests Tre ge e et dora pee neon Performance Test Record DREG seceded Gn dard de rd PORT MATCH suis te tb Section 5 Adjustments Section 6 Replaceable Parts MOGLEG 1 2 wre A na Exchange Assemblies Available Replaceable Parts Lists Section 7 Manual Backdating Changes Tai gere 8104 5 2 age Pla ads EE res PODUCAUON rra see nen Section 8 Service MON A ee ee MEET Opening the Instrument Case Servicing the Directional Bridge RF Troubleshooting Procedure Table of Contents General Information ee TEST SET 300 WAZ gt 3 0 Gite Ae SS Sch TRANSMISSK Figure 1 1 HP 85044A Transmission Reflection Test Set HP 85044A B KT INTRODUCTION The purpose of this manual is to enable you to use your HP 85044A or HP 85044B transmission reflection test set efficiently and confidently This manual contains both general and specific informa tion When information applies to both the HP 85044A and the HP 85044B the name HP 85044A B will be used To use the HP 85044A B to perform a specific function without reading the entire manual follow the directions in Using the HP 85044A B This section 1 outlines how to begin using the HP 85044A B as quickly as possible 2 describes what instruments are covered by this manual 3 describes the test set i
5. a restored exchange basis at a considerable cost saving The assembly includes the RF and DC bias connectors Defective assemblies must be returned for credit to realize the cost savings Thus assemblies required for spare parts stock must be ordered by the new assembly part number which is included in the replaceable parts list in this section of the manual HP part number 5086 6446 is the factory restored repaired and tested exchange assembly for the HP 85044A power splitter directional bridge HP part number 5086 6448 is the factory restored repaired and tested exchange assembly for the HP 85044B power spiitter directional bridge two year warranty applies to both the original power splitter directional bridges and to replace ments The two year warranty applies equally to replacements purchased new or restored through the suppon life of the instrument REPLAGEABLE PARTS LISTS Accompanying each replaceable parts illustration is a replaceable parts list Each list is arranged in alpha numerical order by reference designator The reference designator keys the part listed to the illustration The first part number listed is HP s part number and may differ from the manufacturer s part number The check digit serves as an error check of the part number and should be used when ordering part Quantity refers to the number of the part in the accompanying illustration The description is a brief written description of the part and may be used
6. br Figure 3 3 be DEEG di ert L i ARS Bann zech GE ESSEN ERROR BERNER var aay Bt dr Es PALAS LAA IATA Og OPERATOR S CHECK HP 85044A B d Ce EQUIPMENT HP 85044A HP 85044B Network analyzer HP 8753A HP 8753A RF cable set HP118518 HP 118518 Calibration kit HP 85031B HP 85036B Minimum toss pad HP 118528 PROCEDURE 1 Connect the equipment as shown in Figure 3 4 but do not connect the DUT 2 In place of the DUT connect the calibration kit load to the TEST port 3 Turn on the HP 8753A and press PRESET If the test set is an HP 85044B press STOP 2 G n on the network analyzer to limit the frequency to 2 GHz 4 Press SCALE REF REFERENCE POSITION 9 x1 to position the reference line one division from the top 5 Press MKR FCTN MKR SEARCH MAX to set the HP 8753A to identify the point of minimum directivity It should be greater than about 30 dB 6 Remove the load from the TEST port of the test set 7 Rotate the attenuator knob counterclockwise one detent to increase the attenuation by 10 dB The trace should drop 10 dB 1 division Rotate the attenuator knob six more times The trace should drop 10 dB each time 8 This concludes the Operator s Check In case of difficulty refer to Section 8 Service Operation HP 85044A B INTRODUGTION The procedures in this section test the directivity port match and effective so
7. for ordering purposes Manufac turers code is a five digit number assigned to each manufacturer identified in Table 6 1 The manu facturer part number may or may not be the same as the HP part number HP 85044A B Replaceable Parts 1 2 MP12 MP5 typical 2 places underneath MP 24 4 places MP6 typical 2 places underneath MP5 typical 6 places underneath MP5 typical 6 places MP15 typical 3 places 3 places Al 9 1 5086 7445 5086 7448 AIS P O A A1J2 PIO Al P O Al A1J3 P O Al At J P O AI A1J5 P O AI A1J6 P O At A1J7 P O AI A 85044 60001 A2J1 P O A2 A2J2 PIO AZ J2 1250 0083 33 5051 5386 J 5061 5386 J5 5061 5386 MP18 0370 2874 wi 08502 20005 W2 08502 20004 W3 08502 20003 W 08502 20011 W5 08502 20006 Replaceable Parts 4 P P Pr OC OOD ww MP16 typical lee u sesch Figure 6 1 MP17 Ri R2 Ci MP11 MP10 MP7 MP8 MP9 Description 50 OHM BRIDGE SPLITTER HP 85044A 75 OHM BRIDGE SPLITTER HP 850448 7 MM CONNECTOR HP 85044A BIAS FEEDTHRU CONNECTOR TYPE N 75 OHM F CONNECTOR HP 850448 SMB CONNECTOR SMB CONNECTOR SMB CONNECTOR SMB CONNESTOR SMB CONNECTOR ATTENUATOR ASSEMBLY SMB CONNECTOR SMB CONNECTOR BNC F CONNECTOR TYPE N 50 OHM F CONNECTOR TYPE N 50 OHM F CONNECTOR TYPE N 50 OHM F CONNECTOR KNOB POINTER INPUT A BRIDGE CABLE INPUT R CABLE RF INPUT CABLE ATTENUATOR BRIDGE CABLE RF ATTENUATOR BRIDGE CABLE Cables and
8. in this pro cedure is essentially the directivity of the HP 85044A B Use the highest quality termination available as that factor determines the accuracy of the procedure HP 8753A NETWORX ANALYZER HP 85044A B TRANSMISSION frz REFLECTION TEST SET a SHORT LOAD Figure 4 1 Directivity Test Setup Performance Tests HP 85044A B My EQUIPMENT HP 85044A HP 850448 Network analyzer HP 8753A HP 8753A RF cable set HP 118518 HP 11851B Calibration kit HP 85031B HP 850368 PROGEDURE NOTE By convention when the connector sex is indicated in parentheses for a calibration stan dard it refers to the sex of the test port connector not the actual standard For example short f indicates that the test port connector not the short circuit connector is female 1 4 Connect the equipment as shown in Figure 4 1 and turn on the HP 8753A Allow 30 minutes for warm up On the HP 8753A press PRESET STOP 1 3 G n to set the stop frequency to 1 3 GHz if the test set is an HP 85044B press CAL CAL KIT N 750 to select the calibration kit and to set the system impedance to 75Q Press CAL CALIBRATE MENU RESPONSE to enter the response calibration menu NOTE The calibration standards must be correctly aligned and properly seated in the following steps Mediocre connections will result in poor directivity measurements Refer to the Microwave Connector Care manual f
9. 05 1922 04 2950 0132 6 3 HEX NUT DBL CHAM 7 16 28 THD 094 IN THK 04604 76500NP 85044 00001 7 1 FRONT PANEL HP 850444 28480 85044 00001 85044 00002 8 1 FRONT PANEL HP 85044B 28480 85044 00002 85054 50001 5 1 TYPE MF 7MM ADAPTER HP 85044A 28480 85054 80001 HP 118528 3 MINIMUM LOSS PAD HP 850448 28480 HP 118528 08502 20001 2 1 CASE BOTTOM COVER HP 850444 28480 08502 20001 08562 20012 5 1 CASE BOTTOM COVER HP 85044B 28480 08502 20012 08502 20010 3 4 SPRING CLIP 28480 08502 20010 0757 0394 0 1 RESISTOR 51 1 OHM 1 125W 00746 CRB14 0698 8827 4 1 RESISTOR IM 1 125W 00748 CRB14 MP1 08502 20002 MP22 08411 4003 MP23 3030 0221 MP25 08502 20007 MP26 7121 2380 Replaceable Parts MP SE EE BEUFLECTEO tu INCIDENT i BE ANPLT TINE STB y 19 ipi t R EEE MP22 MP23 typical 4 places 3 3 5 8 8 1 CASE TOP COVER 28480 4 FOOT 28480 4 SCREW SKT HD CAP 4 40 375 IN LG SST 302 04204 2 CABINET TRIM ZIPPER 28480 1 IDENTIFICATION LABEL 28480 Figure 6 2 Miscellaneous Parts rear panel view 2 of 2 MP25 Mfr pin 08502 20002 08471 4003 3030 0221 68502 20007 7121 2380 HP 85044A B Table 6 1 Manufacturers KEMET ELEK DIV UNION CARBIDE GREENVILLE SC NYLOK DETROIT CORP TROY MI THOMSON BREMER DIV VARE CHICAGO IL BUSSMAN MFG DIV OF McGRAW EDISON CO ST LOUIS MO FEDERAL SCREW PRODUCTS CO CHICAGO IL PHEOLL DEM DIV OF ALLIED PROD CHICAGO IL ILLINOIS TOOL WORKS INC ELGIN IL
10. 1 S DNI LVSN3dA00 1991419313 m DNI LVSNIdNOD VILL TAS EE TET 43111148 390188 NHO OS LY 3 4 Service HP 85044A B D al lt AQ For information relating to Sales or Support of Hewlett Packard products first contact your local Hewlett Packard REGIONAL SALES AND SUPPORT OFFICES office listed in the white pages of your telephone directory If none is listed locally contact one of the addresses listed below to obtain the address or phone number of the Hewlett Packard Sales or Support office nearest you ASIA Hewlett Packard Asia Ltd 47 F 26 Harbour Road Wanchai HONG KONG G P O Box 863 Hong Kong Tel 852 5 8330833 Telex 76793 HPA HX Cable HPASIAL TD AUSTRALASIA Hewlett Packard Australia Ltd 31 41 Joseph Street BLACKBURN Victoria 3130 Australia Tel 61 895 2895 Telex 31 024 Cable HEWPARD Melbourne CANADA Hewlett Packard Canada Ltd 5877 Goreway Drive MISSISSAUGA Ontario L4V 1M8 Tel 416 678 9430 Telex 069 8644 JAPAN Yokogawa Hewlett Packard Ltd 29 21 Takaido Higashi 3 Chome Suginami xu TOKYO 168 Tel 03 331 6111 Telex 232 2024 YHPTOK MEDITERRANEAN AND MIDDLE EAST Hewlett Packard S A Mediterranean and Middle East Operations Atrina Centre 32 Kifissias Avenue Paradissos Amarousion ATHENS Greece Tel 30 682 88 11 Telex 21 6588 HPAT GR Cable HEWPACKSA Athens
11. 5 deg 300 kHz to 2 0 MHz 10 deg 2 0 MHz to 2 0 GHz 1 5 GB2 300 kHz to 3 0 GHz 25 deg 300 kHz to 2 0 MHz 10 deg 2 0 MHz to 3 0 GHz Magnitude Phases General Information HP 85044A B Table 1 1 HP 85044A B Specifications Nominal Insertion Loss RF INPUT to TEST Port 12 5 dB 5 dB GHz 18 dB 5 dB GHz RF INPUT to INCIDENT 18 dB 1 5 dB GHz 18 dB 1 dB GHz RF INPUT to REFLECTION 19 dB 1 5 dB GHz 30 dB 1 5 dB GHz Impedance TEST Port 50 2 75Q nominal RF INPUT INCIDENT REFLECTED 5002 509 nominal Connectors TEST Port 7 mm 75Q type N f RF INPUT INCIDENT REFLECTED 500 type N f 500 type N f DC bias inputs BNC f BNC f DC bias input range 30 Vde 200 mA fused at 750 mAXsome degradation of RF specifications 300KHz to 100 MHz 1 watt 30 dBm CW RF inputs 19 cm x 15 cm x 5 cm 7 5 x 6 0 x 2 0 inches 1 7 kg 3 7 1b net 3 1 kg 7 15 shipping Damage level Dimensions Weight I can be greatly improved with HP 8753A accuracy enhancement techniques 2 deviation from mean value 3 deviation from linear phase Table 1 2 Recommended Test Equipment Network analyzer no substitute HP 8753A OM Pd Multimeter range DC to 50V HP 3456A Cable set 500 type N three 24 inch HP 11851B P phase matched one 34 inch 0 operation P performance test T troubleshooting HP 85044A B G
12. 53A press MENU POWER 1 0 x1 to set the RF power output level to 10 dBm Then press AVG IF BW 1 0 0 x1 to set the IF bandwidth to 100 Hz 3 Press STOP 1 3 G n to limit the network analyzer to the first frequency range of interest 4 Press CAL CAL KIT N 500 RETURN CALIBRATE MENU S11 1 PORT to enter the type N 11 1 port calibration menu Perform the following steps Connect an open to the adapter on the HP 85044A and press OPENS OPEN M DONE OPENS Connect a short to the adapter on the HP 85044A and press SHORTS SHORT Mi DONE SHORTS Connect a load to the adapter on the HP 85044A and press LOAD Press DONE 1 PORT CAL to conclude the calibration routine The display should show Cor in the status indicator area Performance Tests HP 85044A B kaa gt HP 0753A NETWORK ANALYZER HP 85044A B TRANSMISSION REFLECTION TEST SET Nes w w mm N N INCIDENT DIRECT CONNECTION A NO GABLE sch 8 8 REFLECTED INPUT TEST SET UNDER TEST LOAD Figure 4 3 Port Match Test Setup Connect a 50Q load on the RF INPUT and REFLECTED ports of the HP 85044A B under test as shown in Figure 4 3 In addition to test the port match of the HP 85044A connect a 7 mm 500 load to the TEST port HP 85044B connect a type N 750 load to the TEST port Connect the HP 85044A through the adapter to the HP 85044A B INCIDENT port of the HP 85044A B under test
13. February 1986 BENELUX amp SCANDINAVIA Hewlett Packard S A Uilenstede 475 P O Box 999 NL 1183 AG AMSTELVEEN The Netherlands Tel 31 20 43 77 71 Telex 18 919 hpner ni SOUTH amp EAST EUROPE AFRICA Hewlett Packard S A 7 rue du Bois du Lan CH 1217 MEYRIN 2 Geneva Switzerland Tel 41 22 83 12 12 Telex 27835 hmea Cable HEWPACKSA Geneve FRANGE Hewlett Packard France Parc d activites du Bois Briard 2 avenue du Lac 91040 EVRY Cedex Tel 1 6 077 83 83 Telex 6923 15F GERMAN FEDERAL REPUBLIC Hewiett Packard GmbH Hewiett Packard Strasse Postfach 1641 D 6380 BAD HOMBURG West Germany Tel 06172 400 0 Telex 410 844 hpbhg ITALY Hewlett Packard Italiana S p A Via G Di Vittorio 9 1 20063 CERNUSCO SUL NAVIGLIO Milano Tel 02 92 36 91 Telex 334632 UNITED KINGDOM Hewlett Packard Ltd King Street Lane Winnersh WOKINGHAM Berkshire RG11 SAR Tel 734 78 47 74 Telex 847178 EASTERN USA i Hewlett Packard Co 4 Choke Cherry Road ROCKVILLE MD 20850 Tel 301 670 4300 MIDWESTERN USA Hewlett Packard Co 5201 Tollview Drive ROLLING MEADOWS IL 60008 m Tel 312 255 9800 es SOUTHERN USA Hewiett Packard Co 2000 South Park Place P O Box 105005 ATLANTA GA 30348 Tel 404 955 1500 WESTERN USA Hewlett Packard Co 5161 Lankershim Blvd P O Box 3919 NO HOLLYWOOD CA 91609 Tel 818 506 3700 OTHER INTERNATIONAL AREAS Hewlett Packard Co In
14. RATIONS Operation and Storage For best performance the HP 85044A B should be operated in temperatures between 0 C and 55 C with relative humidity between 5 and 95 at 40 C noncondensing It may be operated at altitudes up to 4 500 metres 15 000 feet The HP 85044A B may be stored in temperatures from 40 C to 75 C with relative humidity up to 90 at 65 C noncondensing and at altitudes up to 15 240 metres 50 000 feet HP 850444 B Installation 2 PREPARATION FOR USE Positioning the Test Set Typically the HP 85044A B is placed in front of or next to the HP 8753A Use an anti static work surface to lessen the chance of ESD damage If the HP 8753A is rack mounted in the HP 85043B rack place the test set on the built in work surface Gonnecting the Test Set Mating Connectors The TEST port of the HP 85044A is a precision 7 mm connector and mates with precision 7mm connectors The TEST port of the HP 85044B is a precision 750 type N female con nector and mates with precision 750 type N male connectors Do not mate type N 500 connectors to type N 7522 connectors or damage may result The RF INPUT INCIDENT and REFLECTED ports of the HP 85044A B are precision 500 type N female connectors which mate with the coresponding precision type N male connectors whose dimensions conform to US specification MIL C 39012 The BIAS INPUT connector is a 5022 BNC female connector and mates with the corresponding male con
15. TILLEY MANUFACTURING COMPANY MORGAN HILL CA HEWLETT PACKARD CO CORPORATE HQ PALO ALTO CA Me genes te opose ee HP 85044A B Replaceable Parts 5 6 et INTRODUCTION This section usually contains instructions to help you adapt this manual to an instrument with a serial number prefix lower than the one on the title page APPLICATION Since there are no earlier versions of this instrument with lower serial number prefixes this manual applies directly to instruments with the serial number prefix on the title page NOTE To adapt this manual to a later version instrument higher serial number prefix refer to INSTRUMENTS COVERED BY THE MANUAL in Section 1 een HP 85044A B Manual Backdating Changes 1 2 cn INTRODUGTION This section provides instructions for troubleshooting and repairing the HP 85044A and 85044B trans mission reflection test sets H includes simplified diagrams and schematic diagrams of the test sets TROUBLESHOOTING The intent of this section is to enable technicians to isolate problems to the assembly level identify the defective assembly and order the replacement part The schematic diagrams and circuit descriptions may be used to aid in troubleshooting to the component level Recommended test equipment is listed in Table 1 2 OPENING THE INSTRUMENT CASE The two halves of the case of the HP 85044A B are held together by two U shaped strips of plastic j zippers Remove the two
16. Then press MENU TRIGGER MENU SINGLE on the HP 8753A to generate a single sweep Press MKR FCTN MKR SEARCH MAX to identify the point of minimum port match return loss the trace maximum Enter the value on the Performance Test Record To measure the port match return loss of the REFLECTED port connect the HP 85044A to the REFLECTED port of the HP 85044A B under test and connect a load to each of the other three ports Press MENU TRIGGER MENU SINGLE MKR FCTN MKR SEARCH MAX to generate another sweep and identify the point of minimum port match return loss the trace maximum Enter the value on the Performance Test Record HP 85044A B Performance Tests 7 10 To measure the port match return loss of the RF INPUT port connect the HP 85044A to the RF INPUT port of the HP 85044A B under test and connect a load to each of the other three ports 11 Press MENU TRIGGER MENU SINGLE MKR FCTN MKR SEARCH MAX to generate another sweep and identify the point of minimum port match return loss the trace maximum Enter the value on the Performance Test Record 12 Press START 1 3 G n STOP 3 2 for the HP 850448 G n to reset the frequency range 13 Perform steps 4 through 13 to determine the performance of the test set for the second frequency range 14 If the results of this test are not within specification refer to the Service section of this manual 8 Performance Tests HP 85044 A B
17. ar right column reference a specification definition listed below These definitions are intended to clarify the extent to which Hewlett Packard supports the specified performance of the HP 85044A B S 1 This performance parameter is field verifiable using performance tests documented in the ser vice manual T Typical but non warranted performance characteristics intended to provide information useful in applying the instrument Typical characteristics are representative of most instruments though not necessarily tested in each unit Not field tested Table 1 1 HP Specifications 300 kHz to 3 GHz 300 kHz to 2 GHz Frequency Range Directivity TEST Port gt 35 dB to 1 3 GHz gt 35 dB to 1 3 GHz S 1 30 dB to 3 GHz 2 30 dB to 2 GHz S 1 Port Match INCIDENT and REFLECTED gt 18 dB to 1 3 GHz gt 18 dB to 1 3 GHz S 1 gt 13 dB to 3 GHz gt 13 dB to 2 GHz RF INPUT gt 17 dB to 1 3 GHz 2 17 dB to 1 3 GHz gt 12 dB to 3 GHz gt 12 dB to 2 GHz Effective Source Match 8 1 TEST Port gt 14 dB 300 kHz to 2 MHz gt 14 dB 300 kHz to 2 MHz gt 20 dB 2 MHz to 1 3 GHz 17 dB 2 MHz to 1 3 GHz gt 16 dB 1 3 GHz to 3 GHz 16 dB 1 3 GHz to 2 GHz Typical Transmission gt Tracking Magnitude 1 5 dB 300 kHz to 3 0 GHz 1 5 dB 300 kHz to 2 0 GHz T Phase 10 deg 300 kHz to 3 0 GHz 10 deg 300 kHz to 2 0 GHz Typical Reflection Tracking T 1 5 dB 300 kHz to 2 0 GHz 2
18. ctivity Calculate the directivity If the test set still fails the directivity specifications of Table 1 1 refer to the Service section of this manual if the test set fails the directivity specifications of Table 1 1 by more than 1 dB refer to the Service section of this manual HP 85044A B PORT MATCH SPECIFICATION The port match of the INCIDENT and REFLECTED ports of the HP 85044A B from 300 kHz to 1 3 GHz is 18 dB from 1 3 GHz to 3 GHz 2 GHz for the 85044B 13 dB The port match of the RF INPUT port of the HP 85044A B from 300 kHz to 1 3 GHz I is 17 dB from 1 3 GHz to 3 GHz 2 GHz for the 85044B 12 dB DESCRIPTION This procedure uses one HP85044A to measure the port match of the RF INPUT INCIDENT and REFLECTED ports of the HP 85044A B under test HP 87534 NETWORK ANALYZER HP 85044A 8 TRANSMISSION fe REFLECTION Figure 4 2 HP85044A Calibration Setup HP 85044A B Performance Tests EQUIPMENT HP 85044 A HP 850448 Network analyzer HP 8753A HP 8753A Test set HP 85044A HP 85044A RF cable set HP 118518 HP 11851B Calibration kit HP 850328 HP 85032B 7 mm type N m adapter Additional loads 2 p o HP 85032B HP Part No 85032 50004 p o HP 85032B HP Part No 85032 60004 PROCEDURE 1 Connect the HP 85044A test equipment to the HP 8753A and connect the 7mm type N rn adapter as shown in Figure 4 2 Turn on the analyzer and press PRESET 2 On the HP87
19. ement procedure parts and equipment are included in the Microwave Connector Care manual HP part number 08510 90064 Repeat the direc tivity check Replace the directional bridge splitter if the directivity is still less than that specified in Table 1 1 NOTE The internal SMA connectors have a low torque specification 7 to 10 in Ib 0 8 to 1 1 Nm Damage to the assembly or connector may result if this specification is exceeded Disconnect the RF cables one at a time and check for power levels as indicated by Figure 8 2 Measure the signal level into and out of the attenuator Connect the power meter to the output connector of the attenuator Use the HP 8753A to apply an RF signal of 1 5 GHz CW at 6 dBm to the RF INPUT port of the test set The power meter should read about 0 dBm Step the attenuator down to 70 dB in 10 dB increments The power meter reading should decrease 10 dBm with each step RE INPUT WERENT pgp RU EE NA Figure 8 1 HP 85044A B Case Disassembly Service HP 85044A B te Ms ANdNI OL I 31937338 eT Se ae ee p 1 V ag NOILYNINHIL TYNHILNI ERP p a 350148 P WIDADOL 2HDWIYIG PADOG 21507 pup jaung juoig 2 8 aund J i IRNI I IU INdNI OL I A SYI8 I IN3GISNI 1 t EP WEL GYd KORS 631 GPL 33 1438 T og AUYRIHd i I td d NOTLVANILIVI 7 D LAdNI 38 peer age AS HOLVANILLV d31S V H19N3
20. eneral Information 5 6 INTRODUCTION This section explains how to install the HP 85044A B test set for use with the HP 8753A network analyzer The topics covered include initial inspection environmental considerations positioning and connecting the test set for use and packaging the instrument INITIAL INSPECTION inspect the shipping container including cushioning material for damage If it is damaged keep it until you have checked the contents for completeness The contents are listed in Table 2 1 in addition check the test set mechanically and electrically If the test set and shipping container are undamaged performing the Directivity performance test in Section 4 should suffice for incoming inspection If the test set does not pass the performance test refer to the troubleshooting procedures in Section 8 If the shipping container is damaged perform all four electrical performance tests in Section if the test set fails the electrical tests or is damaged defective or incomplete keep the shipping materials and notify both the carrier and the nearest Hewlett Packard office The HP office wil arrange for repair or replacement of the test set without waiting for settlement of the claim Table 2 1 Components of HP 85044A B Test Set HP 85044A HP 850448 85044 90001 85044 90001 85054 60001 adapter HP 11852B minimum loss pad Operating and Service Manual Accessory ENVIRONMENTAL CONSIDE
21. ety day on site warranty The standard warranty appears on the inside front cover of this manual Option W30 This option adds two additional years of return to HP support to the standard one year warranty for a total of three years ACCESSORIES SUPPLIED The HP 85044A includes a precision 7 mm to 500 type N adapter The HP 850448 includes one HP 11852B 500 to 75Q minimum loss pad General Information HP 85044A B ACCESSORIES AVAILABLE Calibration and Accessory Kits The calibration kits listed below contain the components required to characterize the systematic errors of measurement systems The calibration kits also contain precision adapters The accessory kits listed contain the components generally required to measure devices with the types of connectors indicated Additional information is included in the HP 8753A manual Connector Type Calibration Kit Accessory Kit 7 mm HP 85031B Type N 50 Q HP 85032B HP 11853A 3 5 mm SMA HP 850330 HP85033A fs Type N 750 HP 85036B BNC 50 Q HP 11854A use with the HP 85032B type N calibration kit Cable Sets Use the three phase matched cables of the HP 11851B RF cable set to connect the test set to the HP 8753A Use the fourth cable of the HP 11851B cable set to extend the test port of the HP 85044A B Additional information is included in the HP 8753A manual OPERATING AND SAFETY PRECAUTIONS Electrostatic discharge ESD can damage the se
22. his connector receives the RF signal from the HP 8753A RFOUT and splits it between the TEST and INCIDENT ports IDENTIFICATION LABEL This label identifies the test set with a serial number The first four digits and single letter are the serial prefix The last five numbers are the test set s unique number Options if any are noted below the serial number Operation HP 85044A B e E GARE A ov REVIA SLAG LISS E EE CRI SAP SEKS EEG PRE EE Ko TEE EE EEN E ETE LERNT Y71722 E KE HIS SF EST VIES MP NE E agrees 29 38525 Weert REDE ESTE VEN BEZ AAA Kee EE EE Ze Ee E NEE E EE 85044A B HERE FENG PET gt RATA IIA SERE EA Sme 2382 MINIMUM LOSS PAD WITH HP EE LEE KEE TREES A BE SS S ee rn sec G Viele Pre Aae ing ee Bt l REFLECTED DR Typical Measurement Setup ED Oe Lert te eat REESE en F Y77122 LEES DEG Forbes det ESE KA d P REIT EA HP 850444 Case Bottom Showing RF Signal Path MEN EN GE vi Veet Figure 3 4 RACH Bet Dot SEN KA Mot E b i H a cobs tests Hi KZ d Pr Pe dee s m X AO E Dang Past Ser HP 8753A NETWORK ANALYZER dk HA REFLECTION TEST SET Ee 3 BESS Ya 1414142222 Hai EE DEA IN E EE PURSES SESSA ES GE Deer E ay lt lt o ud eo Cha ba u 2 Y a
23. nectors UG 88 U Power and Control Connections Power is not required for the HP85044A B Nor do the HP 85044A B and 8753A need to communicate with each other as the only variable component in the test set is the manual attenuator Signal Path Connections Place the test set near the network analyzer and connect its RF INPUT port to the network analyzer s RF OUT port INCIDENT to R and REFLECTED to B Use the cables of the HP 11851B RF cable set Bias Connection This connector supplies a bias voltage to the center conductor of the TEST port PAGKAGING If it is necessary to reship the test set repackage it in the original factory package Containers and materials identical to those used by the factory are available through Hewlett Packard offices Alternatively use comparable packaging materials Wrap the test set in heavy paper or anti static plastic If shipping to an HP office or service center complete and attach a service tag in this manual Use sufficient shock absorbing material on all sides of the HP 85044A B to provide a thick firm cushion and prevent movement Seal the shipping container securely and mark it FRAGILE in any correspondence with Hewlett Packard refer to the HP 85044A B by model number and full serial number Installation HP 85044A B Sens INTRODUGTION This section illustrates the features and functions of the front and rear panels of the test set Figures 3 1 and 3 2 Figure 3 3 shows
24. nsitive microcircuits in the HP 85044A B test sets ESD damage is most likely to occur as the bridges are connected or disconnected Protect the test sets by wearing a grounding strap that provides a path to ground of no less than 1 Megohm and no more than 2 5 Megohms Alternatively ground yourself by touching the outer shell of any grounded instrument chassis before touching the test set connectors Never touch the center contacts of the connectors Use work station equipped with an anti static surface You need observe only normal precautions in handling and operating the HP 85044A B Do not exceed its operating level input of 26 dBm or 30 Vdc Service The voltages in this test set do not warrant more than normal caution for operator safety Nev ertheless service should be performed only by qualified personnel HP 85044A B General information 3 RECOMMENDED TEST EQUIPMENT Table 1 2 lists equipment and accessories required for operating testing and repairing the HP 85044A B The table notes which items are required to verify the performance of the test set and which are required to operate it Other equipment may be substituted if its specifications meet or exceed the specifications listed in the critical specifications column SPECIFICATIONS Definitions The specifications listed in Table 1 1 range from those guaranteed by Hewlett Packard to those typical of most HP 85044A B instruments but not guaranteed Codes in the f
25. o 100 Hz 3 If the test set is an HP 85044B press CAL CAL KIT N 7502 to set the system impedance to 75 Then press STOP 2 M u to limit the frequency range to 2 MHz 4 Press CAL CALIBRATE MENU 511 1 PORT to enter the S11 1 port calibration menu Con nect inturn the three calibration standards open short and load to the TEST port and press the softkeys as prompted Then press DONE 1 PORT CAL to complete the calibration gt Press SYSTEM SERVICE MENU TESTS 3 3 x1 to select the calibration coefficient 4 y I dumping routine When the screen indicates Cal Coef 2 press EXECUTE TEST to display the calibration coefficients 6 Press MKR FCTN MKR SEARCH MAX to position the marker at the high point of the trace the point of minimum source match return loss Enter this value on the Performance Test Record 7 Press START 2 M u STOP 1 3 G n to select the next frequency range of interest Repeat steps 4 through 6 8 Press START 1 3 G n STOP 3 2 for the HP 85044B G n to select the last frequency range of interest Repeat steps 4 through 6 9 If the test set does not meet its specifications refer to Section 8 Service 10 Performance Tests HP 85044A B Table 4 1 HP85044A Performance Test Record 1 of 2 HP 85044A Date Temperature Directivity TEST Port 300 kHz to 1 3 GHz 1 3 GHz to 3 GHz Port Match INCIDENT 300 kHz to 1 3 GHz 1 3 GH
26. or additional information 5 6 Connect the short supplied with the calibration kit to the test set s TEST port when prompted On the HP 8753A press SHORT for the network analyzer to measure the calibration standard if the test set is an HP 85044B press SHORT F Press DONE RESPONSE after the short has been measured The status indicator Cor should appear at the left side of the display Connect the load supplied with the calibration kit to the HP 85044A B TEST port On the HP 8753A press MKR FCTN MKR SEARCH MAX to identify the point of minimum directivity the trace maximum Enter on the Performance Test Record the marker value visible in the upper right corner of the display HP 85044A B Performance Tests 10 11 12 13 Performance Tests Press START 1 3 G n STOP 3 2 for the HP 85044B G n to reset the frequency range Repeat steps 4 through 9 to determine the performance for the second frequency range if the test set fails the directivity specification of Table 1 1 by 1 dB or less perform a S11 1 port calibration Set the HP 8753A to generate in CW mode the frequency of worst directivity Connect a short and press DISP DATA MEM DATA MEM Then connect an open and record the marker reading Finally connect the load and record the marker reading The actual directivity of the test set is expressed in this formula open marker reading 2 load marker reading dire
27. st the latest manual changes supplement as it may contain replacement information as well as change information The supplement for this manual is keyed to the manual s print date and part number on the title page and is available on request from Hewlett Packard This manual is also available in microfiche form the part number is on the title page With the manual in 4 x 6 inch microfilm transparency format you will also receive the latest manual changes supple ment HP 85044A B General Information 1 DESGRIPTION AND OPERATING GHARAGTERISTIGS OF THE INSTRUMENT The HP 85044A B transmission reflection test set has been designed to operate with the HP 8753A network analyzer This test set provides a convenient means of simultaneously measuring the reflect ion and transmission characteristics of a 50 ohm or 75 ohm device in one direction The frequency range of the HP 85044A is 300 kHz to 3 GHz The frequency range of the HP 85044B is 300 kHz to 2 GHz The test set includes a 0 to 70 dB step attenuator manually controllable in 10 dB steps and the circuitry necessary for biasing active devices Table 1 1 lists the operating specifications and characteristics of the HP 85044A B The test set is illustrated on the cover of this manual and shown in a typical measurement setup in Figure 3 4 OPTIONS Option 910 This option provides a duplicate test set manual Option WO3 This option converts the standard one year warranty to a nin
28. strips to open the case Place the HP 85044A B upside down on a flat surface Squeeze the top and bottom of the case together by applying pressure to the side to be opened Compressing the case reduces pressure on the zipper With the pressure reduced you can use a small screwdriver to slide the zipper toward the rear panel When you have forced the zipper out as far as shown in Figure 8 1 grasp it firmly with your hand and pull it out completely Repeat the procedure for the remaining zipper Lift the case bottom from the instrument SERVIGING THE DIRECTIONAL BRIDGE The power splitter directional bridge assembly is not field repairable but it is replaceable on an exchange basis at a considerable cost saving See Exchange Assemblies Available in Section 6 for additional information HP 85044A B Service 1 RF TROUBLESHOOTING PROCEDURE To troubleshoot RF path failures use a power meter to check the RF power levels indicated on Figure 8 2 Use the HP 8753A network analyzer to apply an RF signal of 1 5GHz CW at 0dBm to the RF INPUT port of the test set Perform the directivity performance test in Section 4 of this manual to check the directivity of the bridge If the directivity is less than specified in Table 1 1 check the cables and connectors for damage and loose connections On the HP 85044A check the connector collet of the TEST port for possible damage If replacement is indicated replace it with a new 6 slot collet The replac
29. tercontinental Headquarters 3495 Deer Creek Road PALO ALTO CA 94304 Tel 415 857 1501 Telex 034 8300 Cable HEWPACK i i j n Aa
30. the case bottom which depicts the RF signal path through the test set Figure 3 4 shows a typical test set measurement setup A DENE 85044A TRANSMISSION AEFLECTION TEST SET 360 nea 3 0 biz CERS een Se eeeerere m aa er pa ICA rre A e ren TTT DEE EE tege ESN SEE ee Figure 3 1 Front Panel Features 1 RFINPUT ATTENUATION dB This knob controls the attenuation in the test signal path in 10 dB steps 2 TEST The device under test is connected here This connector provides the output signal to the DUT and receives the reflected signal from the DUT The HP 85044A TEST connector is a 500 7 mm connector The HP 85044B TEST connector is a 7512 type N connector Do not input more than 26 dBm 1 2 watt or 30 Vdc to the TEST connector HP 85044A B Operation INDIRE T i To SET R Figure 3 2 Rear Panel Features BIAS INPUT FUSE This 0 75 amp 125V fuse protects the TEST port bias line BIAS INPUT This connector biases devices connected to the TEST port when it is connected to an appropriate source REFLECTED TO INPUT A This connector returns the reflected signal from the device under test to input of the HP 8753A G INCIDENT TO INPUT R This connector routes a portion of the incident signal from the HP 8753A source to input R of the network analyzer This signal is necessary for proper phase locked operation of the HP 8753A and is used as the reference signal in ratio measurements RF INPUT T
31. tself 4 mentions operating precautions safety considerations and warranty restrictions 5 lists the additional equipment required and 6 defines and lists the instrument s specifications USING THE HP 85044A B The HP85044A B has been designed to operate specifically with the HP 8753A network analyzer e To install the instrument turn to Section 2 Installation e To check the proper operation of the HP85044A B see the Operator s Check in Section 3 Operation e To verify that the instrument meets its published specifications turn to Section 4 Performance Tests e To troubleshoot the HP 85044A B turn to Section 8 Service INSTRUMENTS GOVERED BY MANUAL An identification label is affixed to the rear panel of the instrument The instrument s serial number and options if any appear there The first four digits and the letter are the serial number prefix The last five digits are the sequential suffix which is unique to each test set The contents of this manual apply directly to test sets with the same serial number prefix as the one s on the title page under the heading SERIAL NUMBERS If the serial prefix of your test set is not listed on the title page your instrument differs from those documented in this manual The differences are documented in the yellow manual changes supple ment supplied with the manual To keep this manual as current and accurate as possible Hewlett Packard recommends that you periodically reque
32. urce match of the HP 85044A B test set using the specifications of Table 1 1 as the performance standards Each test procedure lists the equipment required to test the HP 85044A and HP 85044B You can substitute other equipment if the substitute equipment meets or exceeds the critical specifications of Table 1 2 All of the tests can be performed without access to the interior of the instrument PERFORMANCE TEST RECORD Tabulate the results of the performance tests in Table 4 1 The Performance Test Record provides space to list all of the tested specifications and their acceptable limits Test results recorded during incoming inspection can be used for comparison with test results obtained after periodic mainte nance troubleshooting or repair HP 85044A B Performance Tests 1 DIRECTIVITY SPECIFICATION The directivity of the HP 85044A and 85044B from 300 kHz to 1 3 GHz is equal to or greater than 35 dB The directivity of the HP 85044A from 1 3 GHz to 3 GHz is 30 dB The directivity of the HP 85044B from 1 3 GHz to 2GHz is 30 dB DESGRIPTION Directivity is a measure of the ability of a directive device in this case the HP 85044A B to discrimi nate between incident and reflected signals in this procedure directivity is tested by using the internal bridge to measure the reflection coefficient of a standard termination Since the return loss of the termination is much greater than the directivity of the test set the measurement made
33. z to 3 GHz REFLECTED 300 kHz to 1 3 GHz 1 3 GHz to 3 GHz RF INPUT 300 kHz to 1 3 GHz 1 3 GHz to 3 GHz Effective Source Match TEST Port 300 kHz to 2 MHz 2 MHz to 1 3 GHz 1 3 GHz to 3 GHz HP 85044A B Tested By Humidity gt 35 dB gt 30 dB gt 18 dB gt 13 dB 18 dB 13 dB 17 dB 12 dB gt 14 dB gt 20 dB 2 16 dB Performance Tests 11 Table 4 1 HP85044B Performance Test Record 2 of 2 g E HP 850448 POIO o iii Tested By Tempargiurg ie Humidity Directivity TEST Port 300 kHz to 1 3 GHz 1 3 GHz to 2 GHz Port Match INCIDENT 300 kHz to 1 3 GHz 1 3 GHz to 2 GHz REFLECTED 300 kHz to 1 3 GHz 1 3 GHz to 2 GHz RF INPUT 300 kHz to 1 3 GHz 1 3 GHz to 2 GHz Effective Source Match TEST Port 300 kHz to 2 MHz 2 MHz to 1 3 GHz 1 3 GHz to 2 GHz Performance Tests HP 85044A B The HP 85044A and 85044B transmission reflection test sets have no adjustable components HP 850444 B Adjustments 1 2 PG INTRODUCTION This section contains information for ordering parts Figure 6 1 identifies the cables and major assem blies of the instrument Figure 6 2 identifies the miscellaneous parts mostly attaching hardware of the test set Table 6 1 is a list of manufacturers arranged by code number EXCHANGE ASSEMBLIES AVAILABLE The power splitter directional bridge assembly A1 see Figure 6 1 is not field repairable It is replace able on
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