HP 11757B Installation And Calibration Manual
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HP 11757B Installation And Calibration Manual

HP 11757B Installation And Calibration Manual

Multipath fading simulator
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Notice
Hewlett-Packard to Agilent Technologies Transition
This documentation supports a product that previously shipped under the Hewlett-
Packard company brand name. The brand name has now been changed to Agilent
Technologies. The two products are functionally identical, only our name has changed. The
document still includes references to Hewlett-Packard products, some of which have been
transitioned to Agilent Technologies.
Printed in USA March 2000

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  • Page 1 Notice Hewlett-Packard to Agilent Technologies Transition This documentation supports a product that previously shipped under the Hewlett- Packard company brand name. The brand name has now been changed to Agilent Technologies. The two products are functionally identical, only our name has changed. The document still includes references to Hewlett-Packard products, some of which have been transitioned to Agilent Technologies.
  • Page 2 HP 11757B Multipath Fading Simulator Installation and Calibration Guide HP Part No. 11757-90058 Printed in UK October 1998 © Copyright Hewlett-Packard Ltd. 1998...
  • Page 3 Notice The information contained in this document is subject to change without notice. Hewlett-Packard shall not be liable for errors contained herein or for incidental or consequential damages in connection with the furnishing, performance, or use of this material. This document contains proprietary information which is protected by copyright. All rights are reserved.
  • Page 4 Contacting Agilent By internet, phone, or fax, get assistance with all your test and measurement needs. Table 1-1 Contacting Agilent Online assistance: www.agilent.com/find/assist United States Latin America Canada Europe (tel) 1 800 452 4844 (tel) (305) 269 7500 (tel) 1 877 894 4414 (tel) (+31) 20 547 2323 (fax) (305) 269 7599 (fax) (905) 282-6495...

  • Page 5: Declaration Of Conformity

    West Lothian, EH30 9TG Scotland, United Kingdom Declares that the product Multipath Fading Simulator Product Name HP 11757B Model Number: Product Options: This declaration covers all options of the above product as detailed in TCF A-5951-9852-02 Conforms with the protection requirements of European Council Directive 89/336/EEC on the approximation of the laws of the member states relating to electromagnetic compatibility, against EMC test specifications...

  • Page 6: General Safety Information

    General Safety Information General Safety Information The following general safety precautions must be observed during all phases of operation, service, and repair of this instrument. Failure to comply with these precautions or with specific warnings elsewhere in this manual violates safety standards of design, manufacture, and intended use of the instrument.

  • Page 7: Safety Symbols

    General Safety Information Safety Symbols The following symbols on the instrument and in the manual indicate precautions which must be taken to maintain safe operation of the instrument. 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 supplied documentation.

  • Page 8: Safety Considerations

    Safety Considerations Safety Considerations This productand related documentation must be reviewed for familiarization with safety markings and instructions before operation. This product is a Safety Class I system (provided with a protective earth terminal). Before Applying Verify that the product is set to match the available line voltage and the correct fuses Power are installed.

  • Page 9: Installation And Calibration

    Installation and Calibration Introduction This section provides the information needed to install the HP 11757B Multipath Fading Simulator. Included is information pertinent to initial inspection, power requirements, line voltage selection, power cables, interconnection, environment, instrument mounting, storage, and shipment. In addition, this section contains the procedures for selecting the impedance of the instrument inputs and setting the HP-IB address.

  • Page 10: Preparation For Use

    Installation and Calibration HP 11757B tests, notify the nearest Hewlett-Packard oce. If the shipping container is damaged, or the cushioning material shows signs of unusual stress, notify the carrier as well as the Hewlett-Packard oce. Keep the shipping materials for the carrier's inspection.
  • Page 11 HP 11757B Installation and Calibration 3. Ensure that the power cable to be used is the required type. into the Caution BEFORE PLUGGING THIS INSTRUMENT line (Mains) voltage, make sure that the correct voltage and fuse have been selected. 4. Plug in the power cable.
  • Page 12 Installation and Calibration HP 11757B Figure 1-1. Voltage Selection To check or replace the fuse: Fuse Replacement 1. Remove the power cable from the back panel of the Fader. 2. The plastic receptacle into which the power cable is plugged contains a small drawer containing the fuse.

  • Page 13: Power Cables

    HP 11757B Installation and Calibration The fuse should be an IEC approved 5 by 20 mm Note ceramic case, sand lled 5 Amp 250V Fast Blow. If your instrument is new, there will be a spare fuse in the fuse drawer.
  • Page 14 Installation and Calibration HP 11757B This instrument is equipped with a three-wire power cable. When connected to an appropriate AC power receptacle, this cable grounds the instrument chassis. The type of power cable plug shipped with each instrument depends on the country of destination. See gure 1-3, \Power Cable and Line (Mains) Plug Part Numbers", for the part numbers of these power cables.
  • Page 15 HP 11757B Installation and Calibration Figure 1-3. Power Cable and Line (Mains) Plug Part Numbers...
  • Page 16 The HP-IB address is selectable from the front panel. When shipped from the factory the address of the instrument is 14. HP-IB addresses from 00 to 30 as well as 40 (listen only) and 50 (talk only) can be used. A list of allowable addresses is given in table 1-1.
  • Page 17 HP 11757B Installation and Calibration Table 1-1. Allowable HP-IB Address Codes Talk Listen Decimal Address Address Equiv- Character Character alent " & < > Factory-set Fading Simulator address.
  • Page 18 Interconnection data for the Hewlett-Packard Interface Interconnections Bus is provided in gure 1-4, Hewlett-Packard Interface Bus Connection. HP-IB Interface Connector The HP-IB mating connector is shown in gure 1-4, Hewlett-Packard Interface Bus Connection. Note that the two securing screws are metric.
  • Page 19 Mating Connector HP 1251-0293; Amphenol 57-30240. Mating Cables Available HP 10833A, 1 metre (3.3 ft), HP 10833B, 2 metres (6.6 ft) HP 10833C, 4 metres (13.2 ft), HP 10833D, 0.5 metre (1.6 ft) Cabling Restrictions 1. A Hewlett-Packard Interface Bus system may contain no more than 2 metres (6.6 ft) of connecting cable per instrument.
  • Page 20 Installation and Calibration HP 11757B Coaxial Connectors The IF INPUT and the IF OUTPUT on the front panel, and the AUX IF OUT on the rear panel require 75 BNC male mating connectors compatible with the speci cations of US MIL-C-39012.
  • Page 21 Press when ENTER you have the polarity you want. The Fader's internal printer uses thermal paper, HP part Printer number 9270-1299. To load a new roll of paper into the Fader: Never pull the paper from the Fader. Use the Caution key.
  • Page 22 Installation and Calibration HP 11757B 7. Place the paper cover back on and pull some paper out on the side of the cover closest to the paper feeder. Figure 1-5. Paper Holder 8. Cut the end of the paper square.
  • Page 23 HP 11757B Installation and Calibration 9. Feed the end of the paper into paper slot while pressing repeatedly. Keep pressing PAPER FEED until paper scrolls through the paper PAPER FEED tear at the front of the Fader. The paper slot may be hard for some users to see. It Note consists of a black plastic feed and a metal backing.
  • Page 24 Installation and Calibration HP 11757B Figure 1-6. Paper Feed 10. Place the paper holder back into the Fader and turn the knob clockwise until the holder is rmly in place. 11. Press to see if the feeder is still PAPER FEED...

  • Page 25: Storage And Shipment

    : : : : : : : : : : : : : : : : : : < The Fader may be rack mounted using Hewlett-Packard Rack Mounting sub-module cabinets. The HP part numbers for the rack mounting kits are as follows: Without Handles: 5062-4840...
  • Page 26 Installation and Calibration HP 11757B To minimize repair time, be as speci c as possible when describing the failure. Keep the following two items in mind when describing the failure: 1. Describe what makes you think the instrument is failing. An example might be \Flat fade attenuation does not work."...
  • Page 27 HP 11757B Installation and Calibration 5. Mark the shipping container \FRAGILE" to encourage careful handling. General Operating Instructions Warning Before the Fader is switched on, all protective earth terminals, extension cords, autotransformers, and devices connected to the instrument should be connected to a protective earth grounded socket.
  • Page 28 Installation and Calibration HP 11757B At power-up, the Fader returns to the same settings that Power-Up Conditions were present when last turned o . PRESET is used to set the Fader to known conditions. Preset Press the key. PRESET/LOCAL Press ENTER...
  • Page 29 HP 11757B Installation and Calibration Preset Values (continued) Parameter Condition...
  • Page 30 Installation and Calibration HP 11757B Basic Front Panel Checks The \Basic Front Panel Checks" provide a method for testing the front panel features of the Fader. This test can be performed at incoming inspection to check Fader operation. The functions of the Fader are checked using a signal Description source and a spectrum analyzer.
  • Page 31 HP 11757B Installation and Calibration parameters are set to 45 MHz and 95 MHz, but sweep is set to o . FREQ = 70 MHz Start Sweep = 45 MHz Stop Sweep = 95 MHz DEPTH = 0 dB ATTEN = 0 dB 3.
  • Page 32 Installation and Calibration HP 11757B 6. Set the output of the synthesized sweeper to 70 MHz at a power level of 7 dBm. Set the sweeper for a span of at least 25 MHz (you may set a start and stop sweep frequency instead of center frequency and span).

  • Page 33: Performance Tests And Adjustments

    Fader's electrical performance to the speci cations described in the HP 11757B User's Guide. These procedures are stored on the HP 11757B Support Disk. These procedures are designed to be used on an HP Series 200/300 controller with BASIC 3.0 or higher.
  • Page 34 HP 11757B battery backed RAM. The data can also be saved to EEPROM using the command CAL:SA VE Network Analyzer HP 8753B/C at address 716 Equipment : : : : : : : : S-Parameter Test HP 85046A (50 ) : : : : : : : : : : : : : : : : : :...
  • Page 35 HP 11757B Installation and Calibration Figure 1-8. Automated Performance Test Setup 2. Insert the HP 11757B Support disk into the controller's disk drive (have BASIC loaded rst).
  • Page 36 Screen #4 is the program selection screen. It lists the actual tests that can be run on the HP 11757B. Do not select any test until you have run the calibration for the Network analyzer/S-Parameter Test Set.

  • Page 37: Selecting Tests

    HP 11757B Installation and Calibration Figure 1-9. S-Parameter Test Set Calibration Setup 2. Press the key on the network analyzer. 3. Select the softkey. NNNNNNNNNNNNNNNNNNNNNNNNNN CAL MENU 4. Select NNNNNNNNNNNNNNNNNNNNNNNNNN Response 5. Select NNNNNNNNNNNNNN THRU 6. Select NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN DONE:RESPONSE 7. When calibration is nished, reconnect the equipment as shown in Figure 1-8.
  • Page 38 The adjustments may be selected either individually or as a group. ADJUST 1 through ADJUST 4 adjust individual parameters of the HP 11757B. ADJUST 5 performs a complete adjustment (ADJUST 1 through ADJUST 4).
  • Page 39 This procedure is to be used whenever any kind of repair Note or alteration is made to the HP 11757B, even if it only involves loosening and re-tightening a cable. Figure 1-11, \Adjustment Procedure Flowchart", illustrates how the adjustment procedure should be performed.
  • Page 40 Installation and Calibration HP 11757B 7. If any status is \Failed" highlight ADJUST 5 COMPLETE AUTOMATIC ADJUSTMENTS (1, 2, 3, 4) and press Leave the equipment NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN SELECT ITEM set up a shown in gure 1-8.. The automated adjustments may take up to two hours Note per band to complete.
  • Page 41 HP 11757B Installation and Calibration Figure 1-11. Adjustment Procedure Flowchart...
  • Page 42 This Page Intentionally Left Blank...

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