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Keysight Technologies 85309B LO/IF, User'S And Service Manual

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3-8                                                                                         Keysight 85309B User’s and Service Guide

General Information
General Safety Considerations

3-

If this product is not used as specified, the protection provided by 

the equipment could be impaired. This product must be used in a 

normal condition (in which all means for protection are intact) only.

The detachable power cord is the instrument disconnecting device. 

It disconnects the mains circuits from the mains supply before other 

parts of the instrument.

Summary of Contents for 85309B LO/IF

Page 1: ...User s and Service Guide Keysight 85309B LO IF Distribution Unit Use this manual with the Keysight Antenna Selection Guide part number 5968 6759E...

Page 2: ...U S government customers under its standard commercial license which is embodied in its End User License Agreement EULA a copy of which can be found at http www keysight com find sweula The license se...

Page 3: ...ected performance or describe product performance that is useful in the application of the product but is not covered by the product warranty Characteristic Performance describes performance parameter...

Page 4: ...a total of two test channels and one reference channel 85309B Option 002 Two Additional Test Channels Adds two additional test channels Provides a total of three test channels and one reference channe...

Page 5: ...Keysight 85309B User s and Service Guide v Option 1CP Rack Mount Kit With Handles Rack mount kit with handles To obtain this item after receiving the 85309B order part number 5063 9221...

Page 6: ...vi Keysight 85309B User s and Service Guide...

Page 7: ...Selection Guide 2 9 Contacting Keysight 2 9 Shipping Your Instrument to Keysight for Service or Repair 2 9 2 Operating Information Electrostatic Discharge Protection 3 1 85309B Front Panel Features 3...

Page 8: ...stic Performance 1 3 General Safety Considerations 1 5 Introduction 1 5 Cleaning the Instrument 1 5 Connector Care and Cleaning 1 5 Declaration of Conformity 1 5 Statement of Compliance 1 6 General Sa...

Page 9: ...page 9 STEP 2 Meet Electrical and Environmental Requirements 1 Ensure the available AC power source meets the requirements found in General Specifications on page 1 2 Ensure the operating environment...

Page 10: ...ed To learn about the various system configurations refer to the Keysight Antenna Test Selection Guide part number 5968 6759E See Printing Copies of Documentation from the Web in the first section of...

Page 11: ...Keysight 85309B User s and Service Guide 1 3 Getting Started Step 3 Connect the 85309B with Other System Components Configuration Examples Figure 1 1 Simplified Configuration Block Diagram...

Page 12: ...1 4 Keysight 85309B User s and Service Guide Getting Started Step 3 Connect the 85309B with Other System Components 1 Figure 1 2 Typical Far Field Configuration...

Page 13: ...Keysight 85309B User s and Service Guide 1 5 Getting Started Step 3 Connect the 85309B with Other System Components Figure 1 3 Typical PNA X Compact Range Configuration...

Page 14: ...panel of the 85309B Option 400 401 402 models allows the user to switch between the low band high band and external selections For more information refer to 85309B Front Panel Features on page 3 Step...

Page 15: ...aintain the desired LO power level regardless of LO frequency Repeat the procedure below only if you change one of the mixer modules or the LO source Find the detector voltage value written on the ref...

Page 16: ...operator s check should be performed when you first receive your 85309B and any time you wish to have confidence that it is working properly The operator s check does not verify performance to specifi...

Page 17: ...eysight office are available on the Web at http www keysight com find assist If you do not have access to the Internet please contact your Keysight field engineer Shipping Your Instrument to Keysight...

Page 18: ...1 10 Keysight 85309B User s and Service Guide Getting Started Getting Help with Your 85309B 1...

Page 19: ...g connections always wear a heel strap when working in an area with a conductive floor If you are uncertain about the conductivity of your floor wear a heel strap always ground yourself before you cle...

Page 20: ...2 2 Keysight 85309B User s and Service Guide Operating Information Electrostatic Discharge Protection 2 Figure 2 1 ESD Protection Setup...

Page 21: ...into its LO input This voltage is sent to the 85309B where it is displayed in the DETECTOR VOLTAGE display The voltage is directly proportional to the amount of LO power This display allows you to mo...

Page 22: ...put if possible Make sure your LO source can generate sufficient power at the maximum LO frequency The LO POWER ADJUST is not set properly on the 85309B Refer to Step 6 Adjust the LO Power on page 7 f...

Page 23: ...les external control of band selection via rear panel J15 HIGH LOW BAND SELECT port TTL high 5 V selects HIGH band TTL low 0 V selects LOW band If the green LED above the Band Selection knob is lit th...

Page 24: ...or as ports for non diplexed test mixers of the LO IF unit Option 40x only J15 is a separate connector that allows external control of the HIGH LOW BAND SELECT feature Figure 2 4 85309B Rear Panel Fe...

Page 25: ...st mixer and receives the IF signal over the same connection A diplexer inside the test mixer and the 85309B makes this possible The IF signal from the test mixer is amplified and sent to the receiver...

Page 26: ...3 IF OUT option 002 or 402 This connector sends the test mixer s IF signal to the receiver Generally this signal is connected through the BNC to RECEIVER ADAPTER cable to the receiver a2 input J7 and...

Page 27: ...nel Features Available Fuses Fuse 5 A 250V 2110 0709 U L listed and CSA certified Figure 2 5 Line Fuse For continued protection against fire hazard replace line fuse only with same type and rating Fus...

Page 28: ...2 10 Keysight 85309B User s and Service Guide Operating Information 85309B Block Diagrams 2 85309B Block Diagrams Block diagrams are located on the following two pages...

Page 29: ...0 67007 A13 A15 A16 Diplexer 5076 6336 A43 A24 A26 A25 Diplexer 5076 6336 A44 A27 A29 A28 Diplexer 5076 6336 A45 J4 W12 W3 J2 W26 W32 W7 W11 W27 W33 W34 W28 W37 W38 W39 REF CHAN LO OUT J3 TEST 1 LO IF...

Page 30: ...A29 4 SW7 A28 Diplexer 5076 6336 A45 A31 85309 80025 A30 85309 80024 J4 W12 W41 W2 W3 W42 W43 W44 ALC W45 W48 W50 W9 J2 W6 W31 W47 W32 W7 W11 W49 W33 W34 W36 W51 W37 W38 W39 REF CHAN LO OUT J3 TEST 1...

Page 31: ...g standard RF cable assemblies and with MicroCoax UFB311A RF low loss cable assemblies The standard mixers used in Keysight antenna measurement systems are the 85320A test mixer and the 85320B referen...

Page 32: ...2 14 Keysight 85309B User s and Service Guide Operating Information Cable Length Limits 2 Figure 2 6 Cable Length Configurations 1 of 2...

Page 33: ...Keysight 85309B User s and Service Guide 2 15 Operating Information Cable Length Limits Figure 2 7 Cable Length configurations 2 of 2...

Page 34: ...h the 85309B Description The Operator s Check drives an LO power signal into the rear panel LO INPUT J1 port and measures the power output response of the LO channels reference and test across the ent...

Page 35: ...must also be able to supply 35 dBm to 6 dBm power Any PNA with frequency range up to 18 GHz Any ENA with frequency range up to 18 GHz 30 dB pad attenuatorb b An external 30 dB pad attenuator is requi...

Page 36: ...dB a Select Power Power and Attenuator b Select receiver attenuator B c Enter a value of 30 dB 12 Connect a test cable to Port 2 13 Connect a thru adapter between Port 1 and Port 2 14 Normalize the re...

Page 37: ...traces from the Reference LO OUT J2 port with the limits across the entire frequency range in Table 2 3 on page 20 26 For Option 40x models only a Place the 85309B front panel Band Selection switch in...

Page 38: ...and the 85309B rear panel port Test 3 LO IF J13 38 Set the PNA Port 1 source power to 0 dBm 39 For Option 002 models only Compare the output power traces from the Test 3 LO IF J13 port with the limits...

Page 39: ...Guide 2 21 Operating Information Performing the Operator s Check 0 3 0 5 GHz 21 6 dBm 0 5 3 GHz 23 dBm 3 6 2 GHz 25 dBm 6 2 18 GHz 23 dBm Table 2 3 85309B Standard or Options 001 or 002 Output Power...

Page 40: ...surement S21 b Power 35 dBm c IF bandwidth 1 kHz d Start frequency 10 MHz e Stop frequency 100 MHz 4 Connect a test cable to PNA Port 1 Table 2 4 85309B Options 40x Output Power Limits for HIGH Band L...

Page 41: ...een the two test cables Checking the J10 Reference IF Out 9 Connect the test cable on PNA Port 1 to the 85309B rear panel port Reference IF In J4 10 Connect the test cable on PNA Port 2 to the 85309B...

Page 42: ...race should be in the range of 21 dB to 25 dB See Figure 2 9 for a typical Test IF response trace Figure 2 9 Typical Test IF Response Trace For Option 00x and 40x Models Only Checking the J12 Test 2 I...

Page 43: ...PNA Port 2 and the 85309B rear panel port Test 3 IF Out J14 3 Place a marker on the PNA trace In the frequency range of 10 20 MHz the Test IF response trace should be in the range of 21 dB to 25 dB S...

Page 44: ...2 26 Keysight 85309B User s and Service Guide Operating Information Performing the Operator s Check 2...

Page 45: ...001 This ISM device complies with Canadian ICES 001 Cet appareil ISM est conforme a la norme NMB 001 du Canada South Korean Class A EMC declaration This equipment is Class A suitable for professional...

Page 46: ...kg Option 401 10 65 kg Option 402 11 35 kg Dimensions Height 146 mm Width 426 mm Depth 529 mm Ventilation Requirements When installing the instrument in a cabinet the convection into and out of the i...

Page 47: ...nge Low band1 1 Options 40x only 0 1 GHz to 1 0 GHz High band 0 3 GHz to 18 0 GHz Input Power Range LO Input Recommended 0 1 GHz to 1 0 GHz 6 dBm to 10 dBm 0 3 GHz to 3 0 GHz 6 dBm to 10 dBm 2 0 GHz t...

Page 48: ...3 4 Keysight 85309B User s and Service Guide General Information 85309B Characteristic Performance 3 Parameter Minimum Maximum IF Channel Small Signal Gain 20 MHz 21 dB 25 dB...

Page 49: ...vailable on the Keysight Technologies Web site at http www keysight com go conformity or by contacting Keysight see Contacting Keysight on page 9 To prevent electrical shock disconnect the Keysight Te...

Page 50: ...to the neutral grounded side of the ac power supply Cautions applicable to this instrument This is a Safety Class I product provided with a protective earthing ground incorporated in the power cord T...

Page 51: ...dequate earth grounding or using a power cord with inadequate rating will impair the safety protection provided by the equipmenst and make the instrument dangerous This is a Safety Class I product pro...

Page 52: ...s specified the protection provided by the equipment could be impaired This product must be used in a normal condition in which all means for protection are intact only The detachable power cord is th...

Page 53: ...equipment are required to be separated from normal waste for disposal Reference WEEE Directive 2002 96 EC This symbol indicates that the power line switch is ON This symbol indicates that the power l...

Page 54: ...leak or deteriorate during normal use Forty years is the expected useful life of the product South Korean Certification KC mark includes the marking s identifier code which follows the format MSIP REM...

Page 55: ...placeable parts lists include the part number indicate the quantity required Contact Keysight Technologies for instructions on where to send the order Refer to Contacting Keysight on page 9 To order a...

Page 56: ...in all instruments with serial number prefixes MY 53351100 1 Power divider 18 GHz 4 way A12 5087 7755 1 RF amplifier 0 3 to 18 GHz Ref Chan A13 5087 7755 1 RF amplifier 0 3 to 18 GHz Test1 Chan A14 8...

Page 57: ...Keysight 85309B User s and Service Guide 4 3 Service Replaceable Parts Figure 4 1 Major 85309B Assemblies Standard...

Page 58: ...OUT A11 IN W4 85309 20141 1 AT3 OUT A12 IN W5 85309 20140 1 AT4 OUT A13 IN W7 85309 20144 1 A16 OUT RPJ3 W8 85309 60112 Was 85309 60111 1 A16 RPJ8 W10 85309 20138 1 A17 IN RPJ1 W11 85309 60109 1 A15...

Page 59: ...Keysight 85309B User s and Service Guide 4 5 Service Replaceable Parts Figure 4 2 Cable Locations Standard...

Page 60: ...Hz Ref Chan A15 85309 80026 1 IF amplifier 0 5 to 500 MHz Test1 Chan A16 5076 6336 Was 5067 4814 1 Diplexer Test1 Chan A17 5087 7768 1 RF amplifier 0 3 to 18 GHz Input A18 85309 61601 1 Potentiometer...

Page 61: ...Keysight 85309B User s and Service Guide 4 7 Service Replaceable Parts Figure 4 3 Major 85309B Assemblies Option 001...

Page 62: ...85309 20144 1 A16 OUT RPJ3 W8 85309 60112 Was 85309 60111 1 A16 RPJ8 W10 85309 20138 1 A17 IN RPJ1 W11 85309 60109 1 A15 OUT RPJ9 W12 85309 60109 1 A10 IN RPJ4 W14 85309 60109 1 A14 OUT RPJ10 W15 812...

Page 63: ...Keysight 85309B User s and Service Guide 4 9 Service Replaceable Parts Figure 4 4 Cable Locations Option 001...

Page 64: ...1 RF amplifier 0 3 to 18 GHz Input A18 85309 61601 1 Potentiometer 5K ohm 5PCT 1W 10 Turn Wirebound A19 5076 6336 Was 5067 4814 1 Diplexer Ref Chan A22 0950 5271 1 Power supply unit A24 5087 7755 1 R...

Page 65: ...Keysight 85309B User s and Service Guide 4 11 Service Replaceable Parts Figure 4 5 Major 85309B Assemblies Option 002...

Page 66: ...A15 OUT RPJ9 W12 85309 60109 1 A10 IN RPJ4 W14 85309 60109 1 A14 OUT RPJ10 W15 8120 8483 1 A2J1 RPJ5 W16 8120 8483 1 A2J2 RPJ6 W22 85309 20168 1 A12 OUT A19 IN W23 85309 20144 1 A19 OUT RPJ2 W26 8530...

Page 67: ...Keysight 85309B User s and Service Guide 4 13 Service Replaceable Parts If your current A16 diplexer is 5076 6336 use cable part number 85309 60112...

Page 68: ...4 14 Keysight 85309B User s and Service Guide Service Replaceable Parts 4 Figure 4 6 Cable Locations Option 002...

Page 69: ...Chan A17 5087 7768 1 RF amplifier 0 3 to 18 GHz Input A18 85309 61601 1 Potentiometer 5K ohm 5PCT 1W 10 Turn Wirebound A19 5076 6336 Was 5067 4814 1 Diplexer Ref Chan A22 0950 5271 1 Power supply uni...

Page 70: ...4 16 Keysight 85309B User s and Service Guide Service Replaceable Parts 4 Figure 4 7 Major 85309B Assemblies Option 400...

Page 71: ...20144 1 A16 OUT RPJ3 W8 85309 60112 Was 85309 60111 1 A16 RPJ8 W9 85309 20156 1 A12 OUT SW4 2 W11 85309 60109 1 A15 OUT RPJ9 W12 85309 60109 1 A10 IN RPJ4 W14 85309 60109 1 A14 OUT RPJ10 W15 8120 848...

Page 72: ...4 18 Keysight 85309B User s and Service Guide Service Replaceable Parts 4 If your current A16 diplexer is 5076 6336 use cable part number 85309 60112...

Page 73: ...Keysight 85309B User s and Service Guide 4 19 Service Replaceable Parts Figure 4 8 Cable Locations Option 400...

Page 74: ...amplifier 0 3 to 18 GHz Test2 Chan A25 5076 6336 Was 5067 4814 1 Diplexer Test2 Chan A26 85309 80026 1 IF amplifier 0 5 to 500 MHz Test2 Chan A30 85309 80024 1 RF amplifier 10 to 1200 MHz A31 85309 8...

Page 75: ...the other 5067 4814 diplexers as well You also need to replace the W8 cable 85309 60111 with the 85309 60112 cable SW3 SW4 SW5 SW6 33311 60069 4 Switch RF SPDT 15 Vdc 18 GHz a Power divider 0955 2755...

Page 76: ...4 22 Keysight 85309B User s and Service Guide Service Replaceable Parts 4 Figure 4 9 Major 85309B Assemblies Option 401...

Page 77: ...IN RPJ4 W14 85309 60109 1 A14 OUT RPJ10 W15 8120 8483 1 A2J1 RPJ5 W16 8120 8483 1 A2J2 RPJ6 W23 85309 20144 1 A19 OUT RPJ2 W25 8120 5022 1 A2J12 A5J5 W30 85309 20145 1 AT1 OUT A24 IN W31 85309 20156...

Page 78: ...85309B User s and Service Guide Service Replaceable Parts 4 If your current A16 diplexer is 5067 4814 use cable part number 85309 60111 If your current A16 diplexer is 5076 6336 use cable part number...

Page 79: ...Keysight 85309B User s and Service Guide 4 25 Service Replaceable Parts Figure 4 10 Cable Locations Option 401...

Page 80: ...26 85309 80026 1 IF amplifier 0 5 to 500 MHz Test2 Chan A27 5087 7755 1 RF amplifier 0 3 to 18 GHz Test3 Chan A28 5076 6336 Was 5067 4814 1 Diplexer Test3 Chan A29 85309 80026 1 IF amplifier 0 5 to 50...

Page 81: ...60112 cable AT10 0955 1503 1 Microwave attenuator 18 GHz MAX 2W SMA AT11 0955 2530 1 Microwave attenuator 6 GHz MAX 1W 1dB SMA Test3 Chan B1 54574 68501 1 Fan assembly SW1 85309 61607 1 Switch SPDT S...

Page 82: ...4 28 Keysight 85309B User s and Service Guide Service Replaceable Parts 4 Figure 4 11 Major 85309B Assemblies Option 402...

Page 83: ...1 A19 OUT RPJ2 W25 8120 5022 1 A2J12 A5J5 W30 85309 20145 1 AT1 OUT A24 IN W31 85309 20156 1 A24 OUT SW6 2 W32 85309 20147 1 A25 OUT RPJ11 W33 85309 60111 1 A25 A44 IN W34 85309 60109 1 A26 OUT RPJ12...

Page 84: ...85309B User s and Service Guide Service Replaceable Parts 4 If your current A16 diplexer is 5067 4814 use cable part number 85309 60111 If your current A16 diplexer is 5076 6336 use cable part number...

Page 85: ...Keysight 85309B User s and Service Guide 4 31 Service Replaceable Parts Figure 4 12 Cable Locations Option 402...

Page 86: ...4 32 Keysight 85309B User s and Service Guide Service Replaceable Parts 4...

Page 87: ...Installation Note Xxxxx xxxxx 3...

Page 88: ...This information is subject to change without notice Keysight Technologies 2008 2021 April 2021 www keysight com...

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