Tait TB9100 User Manual
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Tait TB9100 User Manual

Base station, console gateway, calibration software
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Download this manual See also: Service Manual, Operating Manual
TB9100 base station
P25 CG console gateway
Calibration Software
User's Manual
MBA-00004-05
Issue 5
February 2007

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Summary of Contents for Tait TB9100

  • Page 1 TB9100 base station P25 CG console gateway Calibration Software User’s Manual MBA-00004-05 Issue 5 February 2007...
  • Page 2 Limited. including patent rights, copyrights and trade secrets of The word TAIT and the TAIT logo are trademarks of Digital Voice Systems, Inc. This voice coding Tait Electronics Limited. Technology is licensed solely for use within this Communications Equipment.

  • Page 3: Table Of Contents

    Contents Preface ......................iii Typographical Conventions ..............iii Associated Documentation ...............iii Publication Record ................iv Basic Tasks ......................1 Using the TB9100 Calibration Software ..........1 About the Toolbar ................2 About the Status Bar ................2 Equipment Required ................3 Calibration Overview ................3 Field Calibration ................4 Service Center Calibration ..............4 P25 Console Gateway Calibration .............5...
  • Page 4 Calibrating the PMU Output Voltage ..........29 Index .................. 31 © Tait Electronics Limited February 2007 ii Contents...

  • Page 5: Preface

    CSS online Help. Technical notes are published from time to time to describe applications for Tait products, to provide technical details not included in manuals, and to offer solutions for any problems that arise. Look for them on Tait's technical support website.

  • Page 6: Publication Record

    MBA-00004-03 August Minor updates. The manual describes Version 2005 02.07 of the Tait TB9100 Calibration Software and Version 1.2 of the TB9100 base station. Front end tuning is explained separately for UHF and VHF receivers. MBA-00004-04 May 2006 Describes Version 03.00 of the Tait TB9100 Calibration Software and Version 2.1x of the...

  • Page 7: Basic Tasks

    Basic Tasks The TB9100 Calibration Software is a Windows-based software program that allows you to adjust the switching ranges of Tait TB9100 base stations (both receiver and transmitter), and to flatten the receiver response across that switching range. The Calibration Software is also used to calibrate the reciter, the PA, and the PMU after servicing.

  • Page 8: About The Toolbar

    Opens the online help for the window you are currently in. About the Status Bar The status bar provides you with useful information that supplements the display in the main window. Miscellaneous messages COM port in use © Tait Electronics Limited February 2007 2 Basic Tasks...

  • Page 9: Equipment Required

    The following tables summarize, for each procedure, whether or not you need to remove the reciter from the subrack, and what equipment (in addition to a PC with the Calibration Software) you will need. TB9100 Calibration Software User’s Manual Basic Tasks 3...

  • Page 10: Field Calibration

    To do this, your Calibration Software needs a dongle. The Service Manual indicates when a module detail needs re-entering or altering. Reciter Procedure Connection Equipment Required Calibrating the balanced lines Inside subrack CTU, AC millivoltmeter (the analog line) (perhaps with differential input) © Tait Electronics Limited February 2007 4 Basic Tasks...

  • Page 11: P25 Console Gateway Calibration

    Digital multimeter Receive-Only Base Station Calibration The reciter in a TB9100 receive-only base station differs only in the absence of a Transmit enable feature license. (The TB8100 receive-only reciter is a hardware variant with no transmit capability.) Accordingly, the calibration software reports the reciter type as standard.

  • Page 12: Setting Up The Equipment

    (If you are not connecting via the CTU, connect the PC to DIG using the RS-232 cable. No other connections are required.) Tait recommends that you disable the PC’s hardware Note: handshaking. The DIG connector is used for digital I/O as well as for RS-232 and this could interfere with the handshaking.

  • Page 13: Connecting The Calibration Software

    “CCTM.log”. The date, time, command number, and parameters are all stored in this file, which may be helpful when troubleshooting. The file is also saved in the Logfiles subfolder and stores up to 1000 of the most recent logged items. TB9100 Calibration Software User’s Manual Basic Tasks 7...

  • Page 14: Adjusting The Frequency Setup

    Adjusting the Receiver Lock Band The first step in preparing the TB9100 base station for operation is to adjust the receiver lock band (switching range). The lock band is the range of frequencies that the receiver is calibrated to operate on.

  • Page 15: Tuning A Uhf Receiver Front End

    RSSI gating levels will be incorrect in analog mode, and voting will be inaccurate in both modes. You should aim to achieve a response that looks something like this: TB9100 Calibration Software User’s Manual Adjusting the Frequency Setup 9...
  • Page 16 For final fine tuning, you may find it helpful to select a more Note: sensitive scale, so that you can see the graphical reading in more detail. Helical filters: Second set First set © Tait Electronics Limited February 2007 10 Adjusting the Frequency Setup...

  • Page 17: Tuning A Vhf Receiver Front End

    RSSI gating levels will be incorrect in analog mode, and voting will be inaccurate in both modes. You should aim to achieve a response that looks something like this: TB9100 Calibration Software User’s Manual Adjusting the Frequency Setup 11...
  • Page 18 6. Click Finish. An alert appears, asking that you calibrate the RSSI. The icon on the Frequency Setup tab indicates that this task is complete. 7. Re-calibrate the RSSI (see “Calibrating the RSSI” on page 18). © Tait Electronics Limited February 2007 12 Adjusting the Frequency Setup...

  • Page 19: Adjusting The Exciter Lock Band

    Once you have finished adjusting the exciter lock band, the icon on the Frequency Setup tab indicates that this task is complete. Exciter VCO tuning hole Exciter VCO tuning for H band hole for B band (380–520 MHz) (136–174 MHz) TB9100 Calibration Software User’s Manual Adjusting the Frequency Setup 13...

  • Page 20: Selecting The Exciter Sub-Band

    If you simply selected the sub-band, the icon is unchanged, indicating that there was no adjustment. Exciter VCO tuning hole for K band (850-869 MHz) Exciter VCO tuning hole for K band (762-776 MHz) © Tait Electronics Limited February 2007 14 Adjusting the Frequency Setup...

  • Page 21: Calibrating The Reciter

    RSSI. It is recommended that only accredited service centers Important: and Tait engineers perform these procedures. Calibrating the Exciter You will need to calibrate the exciter if you have made component-level repairs to it.
  • Page 22 10. Click Finish. (If you are using a PA, it will now stop transmitting.) When you have finished calibrating the FCL, the icon on the Reciter Calibration tab indicates that this task is complete. You will now need to calibrate the VCO. © Tait Electronics Limited February 2007 16 Calibrating the Reciter...

  • Page 23: Calibrating The Vco

    Next. (If you are using a PA, it will now transmit.) 5. Adjust the exciter lock band trimmer until the actual band matches the desired band. The bands turn green. 6. Click Next. Step 3 of the wizard appears. TB9100 Calibration Software User’s Manual Calibrating the Reciter 17...

  • Page 24: Calibrating The Rssi

    RF signal source Setup RF signal source Reciter To calibrate the RSSI 1. Make sure that the equipment is set up and that the Calibration Software is connected to the reciter. © Tait Electronics Limited February 2007 18 Calibrating the Reciter...
  • Page 25 This is to make sure the RSSI is correctly calibrated. Click Finish. When you have finished calibrating the RSSI, the icon on the Reciter Calibration tab indicates that this task is complete. TB9100 Calibration Software User’s Manual Calibrating the Reciter 19...

  • Page 26: Calibrating The Balanced Line

    It adjusts the gain, so that when you set line levels using the CSS, the actual line level correctly reflects the CSS settings. (Refer to the TB9100 Customer Service Software User’s Manual for further information.) ■...

  • Page 27: Calibrating The Unbalanced Lines

    Reciter Calibration tab indicates that this task is complete. Calibrating the Unbalanced Lines This procedure is not carried out on the TB9100. The TB9100 does not have an unbalanced line. Carrier Frequency Offset Adjustment The TCXO (temperature compensated crystal oscillator) provides a reference frequency from which all other RF frequencies are derived.
  • Page 28 Frequency counter with an accuracy of 50 parts per billion or better. The equipment must either have its own internal high-accuracy reference or be locked to an external reference such as the Tait T805. ■ RF attenuator (only required if you are using a PA)
  • Page 29 Important: Excessively tightening the screws can damage the thread of the aluminium heatsink. Tait recommends that you use a T10 torque driver set to 0.5 Newton meters (4.5 lbf.in). TB9100 Calibration Software User’s Manual...
  • Page 30 © Tait Electronics Limited February 2007 24 Calibrating the Reciter...

  • Page 31: Calibrating The Power Amplifier

    Perform the procedures in the above order. It is recommended that only accredited service centers Important: and Tait engineers perform these procedures. Calibrating the PA Bias The driver and final transistors of the power amplifier must be biased at a constant current.

  • Page 32: Calibrating The Forward And Reverse Detector Bias Voltages

    Either an inline power meter and 50 ohm load with a high power rating, or ■ A terminating power meter and appropriate 50 ohm attenuator with a high power rating © Tait Electronics Limited February 2007 26 Calibrating the Power Amplifier...
  • Page 33 6. When you have completed adjusting the DAC settings, click Finish. When you have finished, the icon on the PA Calibration tab indicates that this task is complete. TB9100 Calibration Software User’s Manual Calibrating the Power Amplifier 27...

  • Page 34: Troubleshooting Tips

    VSWR > 1.3:1. If a calibration step cannot be stored, check that the load VSWR is <1.3:1. It is recommended that the load should have an input VSWR <1.2:1. © Tait Electronics Limited February 2007 28 Calibrating the Power Amplifier...

  • Page 35: Calibrating The Power Management Unit

    4. Connect a digital multimeter to the PMU output and read the output voltage. 5. Enter the voltage into the PMU Voltage box and click Calibrate. 6. When the wizard indicates that the calibration completed successfully, click Finish. TB9100 Calibration Software User’s Manual Calibrating the Power Management Unit 29...
  • Page 36 © Tait Electronics Limited February 2007 30 Calibrating the Power Management Unit...
  • Page 37 RF input power viewing details of equipment tuning tool calibrating output voltage exciter power supply adjusting lock band product code calibrating entering component repairs to receive-only base station FCL (Frequency Control Loop) receiver TB9100 Calibration Software User’s Manual Index 31...
  • Page 38 VCO Calibration Wizard tuning receiver version of Calibration Software VSWR calibrating bias voltages used to calculate serial number may prevent calibration entering Set Receiver VCO Wizard status bar switching range wizards adjusting © Tait Electronics Limited February 2007 32 Index...

  • Page 39: Limited Warranty

    THE SOFTWARE OR FIRMWARE INCLUDING OPEN SOURCE of the Software or Firmware items prior-installed in the related COMPONENTS IS SUPPLIED BY TAIT AND ACCEPTED BY THE Tait product, included on CD or downloaded from the Tait “ ” LICENSEE AS IS WITHOUT WARRANTY OF ANY KIND EITHER website, (hereinafter referred to as “the Software or Firmware”)
  • Page 40 © Tait Electronics Limited February 2007 34 Tait General Software Licence Agreement...

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P25 cg

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