Keysight Technologies 85039B LO User's And Service Manual
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Keysight Technologies 85039B LO User's And Service Manual

Keysight Technologies 85039B LO User's And Service Manual

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Keysight 85039B LO/IF
Distribution Unit
Use this manual with the Keysight Antenna
Selection Guide, part number 5968-6759E.
User's and
Service Guide

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  • Page 1 User's and Service Guide Keysight 85039B LO/IF Distribution Unit Use this manual with the Keysight Antenna Selection Guide, part number 5968-6759E.
  • Page 2 EULA. Keysight Keysight Technologies, Inc. as with the terms of such license. shall be under no obligation to governed by United States and U.S.
  • Page 3 Printing Copies of Documentation from the Web To print copies of documentation from the Web, download the PDF file from the Keysight web site: http://www.keysight.com. — Go to — Enter the product model number (Ex: 85309B) in the Search function. —...
  • Page 4 than seven meters from the 85309B. There are also IF amplifiers located in the 85309B, which serve as a preamplifier for the receiver, reducing the overall system noise figure significantly. The 85309B LO/IF Distribution Unit can be installed in a variety of configurations for antenna testing.
  • Page 5 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. Keysight 85309B User’s and Service Guide...
  • Page 6 Keysight 85309B User’s and Service Guide...

  • Page 7: Table Of Contents

    Contents Table of Contents 1. Getting Started STEP 1. Check the Shipment..........2-1 STEP 2.
  • Page 8 Contents Reference IF and Test IF ..........3-22 IF the Operator’s Check Fails .

  • Page 9: Getting Started

    Keysight 85309B LO/IF Distribution Unit User’s and Service Guide Getting Started STEP 1. Check the Shipment 1. Unpack the contents of the shipping container. Keep the packaging material in case the analyzer needs to be returned to the factory. 2. Carefully inspect the 85309B to make sure that it was not damaged during shipment.

  • Page 10: Step 3. Connect The 85309B With Other System Components

    Getting Started Step 3. Connect the 85309B with Other System Components Step 3. Connect the 85309B with Other System Components Your antenna test system configuration includes the 85309B and a PNA network analyzer. The need for other components is determined by the type of measurements required.

  • Page 11: Configuration Examples

    Getting Started Step 3. Connect the 85309B with Other System Components Configuration Examples Figure 1-1 Simplified Configuration Block Diagram Keysight 85309B User’s and Service Guide...
  • Page 12 Getting Started Step 3. Connect the 85309B with Other System Components Figure 1-2 Typical Far-Field Configuration Keysight 85309B User’s and Service Guide...
  • Page 13 Getting Started Step 3. Connect the 85309B with Other System Components Figure 1-3 Typical PNA-X Compact Range Configuration Keysight 85309B User’s and Service Guide...

  • Page 14: Step 4. (Option 40X Only): Set The 85309B Band Selection

    Getting Started Step 4. (Option 40x Only): Set the 85309B Band Selection Step 4. (Option 40x Only): Set the 85309B Band Selection The Band Selection knob on the front panel of the 85309B Option 400/401/402 models allows the user to switch between the low band, high band, and “85309B Front Panel external selections.

  • Page 15: Step 6. Adjust The Lo Power

    Getting Started Step 6. Adjust the LO Power Step 6. Adjust the LO Power The procedure below is applicable to all 85309B models, and assumes the user has basic knowledge on the antenna test system. To learn about the various antenna test systems, refer to the Keysight Antenna Test Selection Guide, part number 5968-6759E.

  • Page 16: Step 7. (Optional) Run The 85309B Operator's Check

    Getting Started STEP 7. (Optional) Run the 85309B Operator’s Check STEP 7. (Optional) Run the 85309B Operator’s Check The 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 specifications, but should give you a high degree of confidence that the 85309B is performing properly.

  • Page 17: Getting Help With Your 85309B

    Shipping Your Instrument to Keysight for Service or Repair If you wish to send your instrument to Keysight Technologies for service or repair: — Include a complete description of the service requested or of the failure and a description of any failed test and any error message.
  • Page 18 Getting Started Getting Help with Your 85309B 1-10 Keysight 85309B User’s and Service Guide...

  • Page 19: Operating Information

    Keysight 85309B LO/IF Distribution Unit User’s and Service Guide Operating Information Electrostatic Discharge Protection Protection against electrostatic discharge (ESD) is essential while removing assemblies from or connecting cables to the 85309B. Static electricity can build up on your body and can easily damage sensitive internal circuit elements when discharged.
  • Page 20 Operating Information Electrostatic Discharge Protection Figure 2-1 ESD Protection Setup Keysight 85309B User’s and Service Guide...

  • Page 21: 85309B Front Panel Features

    Operating Information 85309B Front Panel Features 85309B Front Panel Features Figure 2-2 85309B Standard/Option 001/002 Front Panel Figure 2-3 85309B Option 400/401/402 Front Panel DETECTOR VOLTAGE Display The reference mixer has a detector that measures the amount of LO power coming into its LO input.

  • Page 22: Lo Power Out Of Range

    Operating Information 85309B Front Panel Features The 85309B and LO source must provide enough power to match the needs of your specific mixers and to compensate for loss through the LO cable (the “Step 6. Adjust the LO cable that goes from the LO source to the 85309B). Power”...
  • Page 23 Operating Information 85309B Front Panel Features — LOW 0.1 GHz to 1 GHz operating frequency. — HIGH 0.3 GHz to 18 GHz operating frequency. — EXT Enables 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.

  • Page 24: 85309B Rear Panel Features

    Operating Information 85309B Rear Panel Features 85309B Rear Panel Features The 85309B contains static sensitive devices. Never touch the center conductor of any connector. When cleaning connectors, wear a grounded wrist strap. Figure 2-4 shows 85309B Option 402 rear panel features, including two additional test channels and an active J15 “High/Low Band Select”...

  • Page 25: Test Mixers Connector Group

    Operating Information 85309B Rear Panel Features J4 REFERENCE IF IN. This port receives the IF from the reference mixer. The 85309B amplifies this signal and sends it to the receiver using the J10 REFERENCE IF OUT connector. J5 REFERENCE DET IN. A power detector in the reference mixer measures incoming LO power and outputs a proportional voltage.

  • Page 26: Receiver Connector Group

    Operating Information 85309B Rear Panel Features Receiver Connector Group The four BNC connectors in this group, J9 TEST 1 IF OUT (standard), J1O REFERENCE IF OUT, J12 TEST 2 IF OUT (option 001 or 401), and J14 TEST 3 IF OUT (option 002 or 402), output the test and reference IF signals to the receiver.

  • Page 27: Available Fuses

    Operating Information 85309B Rear Panel Features Available Fuses — Fuse (5 A/250V, 2110-0709) U.L. listed and CSA certified For continued protection against fire hazard replace line fuse only with same type and rating: Fuse 5A/250V, Part Number 2110-0709. The use of other fuses or material is prohibited. Figure 2-5 Line Fuse Keysight 85309B User’s and Service Guide...

  • Page 28: 85309B Block Diagrams

    Operating Information 85309B Block Diagrams 85309B Block Diagrams Block diagrams are located on the following two pages. 2-10 Keysight 85309B User’s and Service Guide...
  • Page 29 85309B Block Diagram Rev 10 Standard/Opt 001/Opt 002 REF CHAN REF CHAN IF INPUT IF OUT 85309-80026 0955-0791 Diplexer 5076-6336 REF CHAN LO OUT 5087-7755 LOAD Diplexer 5076-6336 TEST 1 LO / IF 5087-7755 DIPLEXER IF OUT TEST IF IN 13dB TEST 1 Slope Pad...
  • Page 30 85309B Block Diagram Rev 10 Option 400/401/402 REF CHAN REF CHAN IF INPUT IF OUT 0955-0791 85309-80026 0955-2249 Diplexer 5076-6336 REF CHAN LO OUT 33311-60069 0955-2249 5087-7755 OPT 402 LOAD OPT 401 LOAD Diplexer AT13 0955-2249 5076-6336 TEST 1 LOAD AT12 LO / IF 33311-60069...

  • Page 31: Cable Length Limits

    Figure 2-6 on page 14 Figure 2-7 on page 15 mode. show the RF power levels required for proper operation with the 85320A/B mixers and various other mixer products provided by Keysight Technologies. Keysight 85309B User’s and Service Guide 2-13...
  • Page 32 Operating Information Cable Length Limits Figure 2-6 Cable Length Configurations (1 of 2) 2-14 Keysight 85309B User’s and Service Guide...
  • Page 33 Operating Information Cable Length Limits Figure 2-7 Cable Length configurations (2 of 2) Keysight 85309B User’s and Service Guide 2-15...

  • Page 34: Performing The Operator's Check

    Operating Information Performing the Operator’s Check Performing the Operator’s Check Function The Operator’s Check verifies that the 85309B functions properly before permanent installation in the antenna test system. It may also be used as a stand-alone check anytime that a problem is suspected with 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...

  • Page 35: Equipment Required

    Operating Information Performing the Operator’s Check Equipment Required Table 2-2 Equipment Required for the Operator’s Check Equipment Type Recommended Model or Part Number Al ternate Model or Part Number Any PNA with frequency range up to 18 GHz Any ENA with frequency range up to 18 GHz PNA/ENA 30 dB pad 08493-60017...
  • Page 36 Operating Information Performing the Operator’s Check 5. Zero and calibrate the power sensor. 6. Connect a test cable between PNA Port 1 and the power sensor. 7. To perform the source power calibration, select Cal > Power Cal > Source Cal.
  • Page 37 Operating Information Performing the Operator’s Check a. Place the 85309B front panel Band Selection switch in the HIGH position, and compare the output power traces with the limits across the entire frequency range in Table 2-4 on page b. Place the 85309B front panel Band Selection switch in the LOW position, and compare the output power traces with the limits across the entire frequency range in Table 2-5 on page...
  • Page 38 Operating Information Performing the Operator’s Check a. Place the 85309B front panel Band Selection switch in the HIGH position, and compare the output power traces with the limits across the entire frequency range in Table 2-4 on page b. Place the 85309B front panel Band Selection switch in the LOW position, and compare the output power traces with the limits across the entire frequency range in Table 2-5 on page...
  • Page 39 Operating Information Performing the Operator’s Check Table 2-3 85309B Standard or Options 001 or 002 Output Power Limits LO Output Power (+6 dBm Input) 0.3 – 0.5 GHz > +21.6 dBm 0.5 – 3 GHz > +23 dBm 3 – 6.2 GHz >...
  • Page 40 Operating Information Performing the Operator’s Check Table 2-4 85309B Options 40x Output Power Limits for HIGH Band LO Output Power (+6 dBm Input) Frequency Range Power Level 0.3 – 0.5 GHz > +21.3 dBm 0.5 – 3 GHz > +22.4 dBm 3 –...
  • Page 41 Operating Information Performing the Operator’s Check 5. Connect a test cable to PNA Port 2. 6. Connect a thru adapter between the two test cables. 7. Normalize the PNA trace. If necessary, get instructions by searching the embedded Help System of the PNA for “normalize.” After normalizing, the trace should be flat at 0 dBm 8.
  • Page 42 Operating Information Performing the Operator’s Check 13.Connect a test cable between the PNA Port 2 and the 85309B rear panel port Test 1 IF Out (J9). 14.Verify that the W59 jumper is in place between the J7 and J8 ports on the 85309B rear panel.

  • Page 43: If The Operator's Check Fails

    Operating Information Performing the Operator’s Check For Option 002 and 402 Models Only: Checking the J14 Test 3 IF Out 1. Connect a test cable between the PNA Port 1 and the 85309B rear panel port Test 3 LO/IF (J13). 2.
  • Page 44 Operating Information Performing the Operator’s Check 2-26 Keysight 85309B User’s and Service Guide...
  • Page 45 Keysight 85309B LO/IF Distribution Unit User’s and Service Guide General Information General Specifications Environmental: Operating Temperature Range 0 to 50 °C; for indoor use ONLY Storage Temperature Range –40 to 70 °C Operating Altitude 3000 m (9842 ft.) Complies with the essential requirements of the European EMC Directive as well as current editions of the following standards (dates and editions are cited in the Declaration of Conformity): * IEC/EN 61326-1...
  • Page 46 General Information General Specifications Nominal Voltage Range 100/120/220/240 Vac (Fluctuation should not exceed +/- 10% of nominal supply voltage) Power 300 Watts Weight and Dimensions: Net Weight Std: 9.1 kg Option 001: 9.7 kg Option 002: 10.3 kg Option 400: 9.9 kg Option 401: 10.65 kg Option 402: 11.35 kg Dimensions...

  • Page 47: 85309B Characteristic Performance

    General Information 85309B Characteristic Performance 85309B Characteristic Performance Parameter Value Absolute Maximum Rating LO input port (CW) 20 dBm Reference channel IF input port (CW) 13 dBm Reference channel detector input ±20 VDC Positive Z/blanking input ±10 VDC (Option 40x only) Select HIGH/LOW input ±5.5 VDC Frequency Range 0.1 GHz to 1.0 GHz...
  • Page 48 General Information 85309B Characteristic Performance Parameter Minimum Maximum IF Channel Small Signal Gain 20 MHz 21 dB 25 dB Keysight 85309B User’s and Service Guide...

  • Page 49: General Safety Considerations

    Cleaning the Instrument To prevent electrical shock, disconnect the Keysight Technologies 85309B from the mains before cleaning. Use a dry cloth or one slightly dampened with water to clean the external case parts. Do not attempt to clean internally.

  • Page 50: Statement Of Compliance

    General Information General Safety Considerations Statement of Compliance This instrument has been designed and tested in accordance with IEC Publication 61010, Safety Requirements for Electronic Measuring Apparatus, and has been supplied in a safe condition. The instruction documentation contains information and warnings which must be followed by the user to ensure safe operation and to maintain the instrument in a safe condition.
  • Page 51 General Information General Safety Considerations Ventilation Requirements: When installing the instrument in a cabinet, the convection into and out of the instrument must not be restricted. The ambient temperature (outside the cabinet) must be less than the maximum operating temperature of the instrument by 4 °C for every 100 watts dissipated in the cabinet.
  • Page 52 General Information General Safety Considerations 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.

  • Page 53: Regulatory Information

    General Information Regulatory Information Regulatory Information This section contains information that is required by various government regulatory agencies. Instrument Markings Familiarize yourself with these instrument markings and their meanings before operating the instrument. Table 3-1 The instruction documentation symbol. The product is marked with this symbol when it is necessary for the user to refer to the instructions in the documentation.
  • Page 54 General Information Regulatory Information Table 3-1 Indicates the time period during which no hazardous or toxic substance elements are expected to 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-YYY-ZZZZZZZZZZZZZZ or KCC-REM-YYY-ZZZZZZZZZZZZ.

  • Page 55: Service

    To order a part listed in the replaceable parts lists: — include the part number — indicate the quantity required — Contact Keysight Technologies for instructions on where to send the order. “Contacting Keysight” on page Refer to To order a part that is not listed in the replaceable parts lists: —...

  • Page 56: Replaceable Parts Listings

    Service Replaceable Parts Replaceable Parts Listings Table 4-1 Major 85309B Assemblies (Standard) Reference Part Number Description Designator 85309-60135 PC board, Display 85309-60134 PC board, ALC/REG 0955-0791 Low pass filter, 30 MHz Power divider, 18 GHz, 4-way 0955-2755 Was: 0955-2245 5087-7755 RF amplifier, 0.3 to 18 GHz (Ref Chan) 5087-7755 RF amplifier, 0.3 to 18 GHz (Test1 Chan)
  • Page 57 Service Replaceable Parts Figure 4-1 Major 85309B Assemblies (Standard) Keysight 85309B User’s and Service Guide...
  • Page 58 Service Replaceable Parts Table 4-2 Cables (Standard) Reference Part Number Description Designator 85309-20139 A17 OUT - A11 IN 85309-20141 AT3 OUT - A12 IN 85309-20140 AT4 OUT - A13 IN 85309-20144 A16 OUT - RPJ3 85309-60112 A16 - RPJ8 Was 85309-60111* 85309-20138 A17 IN - RPJ1 85309-60109...
  • Page 59 Service Replaceable Parts Figure 4-2 Cable Locations (Standard) Keysight 85309B User’s and Service Guide...
  • Page 60 Service Replaceable Parts Table 4-3 Major 85309B Assemblies (Option 001) Reference Part Number Description Designator 85309-60135 PC board, Display 85309-60134 PC board, ALC/REG 0955-0791 Low pass filter, 30 MHz Power divider, 18 GHz, 4-way 0955-2755 Was: 0955-2245 5087-7755 RF amplifier, 0.3 to 18 GHz (Ref Chan) 5087-7755 RF amplifier, 0.3 to 18 GHz (Test1 Chan) 85309-80026...
  • Page 61 Service Replaceable Parts Figure 4-3 Major 85309B Assemblies (Option 001) Keysight 85309B User’s and Service Guide...
  • Page 62 Service Replaceable Parts Table 4-4 Cables (Option 001) Reference Part Number Description Designator 85309-20139 A17 OUT - A11 IN 85309-20141 AT3 OUT - A12 IN 85309-20140 AT4 OUT - A13 IN 85309-20144 A16 OUT - RPJ3 85309-60112 A16 - RPJ8 Was 85309-60111* 85309-20138 A17 IN - RPJ1...
  • Page 63 Service Replaceable Parts Figure 4-4 Cable Locations (Option 001) Keysight 85309B User’s and Service Guide...
  • Page 64 Service Replaceable Parts Table 4-5 Major 85309B Assemblies (Option 002) Reference Part Number Description Designator 85309-60135 PC board, Display 85309-60134 PC board, ALC/REG 0955-0791 Low pass filter, 30 MHz Power divider, 18 GHz, 4-way 0955-2755 Was: 0955-2245 5087-7755 RF amplifier, 0.3 to 18 GHz (Ref Chan) 5087-7755 RF amplifier, 0.3 to 18 GHz (Test1 Chan) 85309-80026...
  • Page 65 Service Replaceable Parts Figure 4-5 Major 85309B Assemblies (Option 002) Keysight 85309B User’s and Service Guide 4-11...
  • Page 66 Service Replaceable Parts Table 4-6 Cables (Option 002) Reference Part Number Description Designator 85309-20139 A17 OUT - A11 IN 85309-20141 AT3 OUT - A12 IN 85309-20140 AT4 OUT - A13 IN 85309-20144 A16 OUT - RPJ3 85309-60112 A16 - RPJ8 Was 85309-60111* 85309-20138 A17 IN - RPJ1...
  • Page 67 Service Replaceable Parts If your current A16 diplexer is 5076-6336, use cable part number 85309-60112. Keysight 85309B User’s and Service Guide 4-13...
  • Page 68 Service Replaceable Parts Figure 4-6 Cable Locations (Option 002) 4-14 Keysight 85309B User’s and Service Guide...
  • Page 69 Service Replaceable Parts Table 4-7 Major 85309B Assemblies (Option 400) Reference Part Number Description Designator 85309-60135 PC board, Display 85309-60134 PC board, ALC/REG 85309-60136 PC board, Combi 0955-0791 Low pass filter, 30 MHz Power divider, 18 GHz, 4-way 0955-2755 Was: 0955-2245 5087-7755 RF amplifier, 0.3 to 18 GHz (Ref Chan) 5087-7755...
  • Page 70 Service Replaceable Parts Figure 4-7 Major 85309B Assemblies (Option 400) 4-16 Keysight 85309B User’s and Service Guide...
  • Page 71 Service Replaceable Parts Table 4-8 Cables (Option 400) Reference Part Number Description Designator 85309-20151 RPJ1 - SW3 (C) 85309-20152 SW3 (2) - A17 IN 85309-20139 A17 OUT - A11 IN 85309-20141 AT3 OUT - A12 IN 85309-20140 AT4 OUT - A13 IN 85309-20156 A13 OUT - SW5 (2) 85309-20144...
  • Page 72 Service Replaceable Parts If your current A16 diplexer is 5076-6336, use cable part number 85309-60112. 4-18 Keysight 85309B User’s and Service Guide...
  • Page 73 Service Replaceable Parts Figure 4-8 Cable Locations (Option 400) Keysight 85309B User’s and Service Guide 4-19...
  • Page 74 Service Replaceable Parts Table 4-9 Major 85309B Assemblies (Option 401) Reference Part Number Description Designator 85309-60135 PC board, Display 85309-60134 PC board, ALC/REG 85309-60136 PC board, Combi 0955-0791 Low pass filter, 30 MHz Power divider, 18 GHz, 4-way 0955-2755 Was: 0955-2245 5087-7755 RF amplifier, 0.3 to 18 GHz (Ref Chan) 5087-7755...
  • Page 75 Service Replaceable Parts Table 4-9 Major 85309B Assemblies (Option 401) Reference Part Number Description Designator SW3, SW4, 33311-60069 Switch, RF SPDT, 15 Vdc 18 GHz SW5, SW6 ≥ a. Power divider 0955-2755 is used in all instruments with serial number prefixes MY 53351100.
  • Page 76 Service Replaceable Parts Figure 4-9 Major 85309B Assemblies (Option 401) 4-22 Keysight 85309B User’s and Service Guide...
  • Page 77 Service Replaceable Parts Table 4-10 Cables (Option 401) Reference Part Number Description Designator 85309-20151 RPJ1 - SW3 (C) 85309-20152 SW3 (2) - A17 IN 85309-20139 A17 OUT - A11 IN 85309-20141 AT3 OUT - A12 IN 85309-20140 AT4 OUT - A13 IN 85309-20156 A13 OUT - SW5 (2) 85309-20144...
  • Page 78 Service Replaceable Parts *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 85309-60112. 4-24 Keysight 85309B User’s and Service Guide...
  • Page 79 Service Replaceable Parts Figure 4-10 Cable Locations (Option 401) Keysight 85309B User’s and Service Guide 4-25...
  • Page 80 Service Replaceable Parts Table 4-11 Major 85309B Assemblies (Option 402) Reference Part Number Description 85309-60135 PC board, Display 85309-60134 PC board, ALC/REG 85309-60136 PC board, Combi 0955-0791 Low pass filter, 30 MHz Power divider, 18 GHz, 4-way 0955-2755 Was: 0955-2245 5087-7755 RF amplifier, 0.3 to 18 GHz (Ref Chan) 5087-7755...
  • Page 81 Service Replaceable Parts Table 4-11 Major 85309B Assemblies (Option 402) Reference Part Number Description AT10 0955-1503 Microwave attenuator, 18 GHz MAX 2W SMA AT11 0955-2530 Microwave attenuator, 6 GHz MAX 1W 1dB SMA (Test3 Chan) 54574-68501 Fan assembly 85309-61607 Switch, SPDT 85309-61609 Switch, SP3T, rotary SW3 - SW7...
  • Page 82 Service Replaceable Parts Figure 4-11 Major 85309B Assemblies (Option 402) 4-28 Keysight 85309B User’s and Service Guide...
  • Page 83 Service Replaceable Parts Table 4-12 Cables (Option 402) Reference Part Number Description Designator 85309-20151 RPJ1 - SW3 (C) 85309-20152 SW3 (2) - A17 IN 85309-20139 A17 OUT - A11 IN 85309-20141 AT3 OUT - A12 IN 85309-20140 AT4 OUT - A13 IN 85309-20156 A13 OUT - SW5 (2) 85309-20144...
  • Page 84 Service Replaceable Parts *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 85309-60112. 4-30 Keysight 85309B User’s and Service Guide...
  • Page 85 Service Replaceable Parts Figure 4-12 Cable Locations (Option 402) Keysight 85309B User’s and Service Guide 4-31...
  • Page 86 Service Replaceable Parts 4-32 Keysight 85309B User’s and Service Guide...
  • Page 87 Installation Note Xxxxx-xxxxx...
  • Page 88 This information is subject to change without notice. © Keysight Technologies 2008-2016 August 2016 www.keysight.com...

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