Tait TB8100 Using Manual
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TB8100 base station
Using a TB8100 with
an External Modem
Application Note TN-1114-AN
21 December 2005

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Summary of Contents for Tait TB8100

  • Page 1 TB8100 base station Using a TB8100 with an External Modem Application Note TN-1114-AN 21 December 2005...
  • Page 2: Table Of Contents

    Functional Description ........4 Connecting the TB8100 to an External Modem ..... . . 5 Configuring the Base Station.
  • Page 3: Overview

    Tait Electronics Limited has not applied for, and will not apply for, regulatory compliance when using the bypass or extended bypass path. This is because Tait does not want to specify any particular external modem to be used. The choice of external modem is therefore up to the user.
  • Page 4: Functional Description

    Page 4 of 10 TN-1114-AN © Tait Electronics Limited 21 December 2005...
  • Page 5: Connecting The Tb8100 To An External Modem

    Interface Rx Audio Ground Connect the TB8100 to the external modem using the unbalanced line Connection input (Tx audio) and output (Rx audio) on the system interface connector. If required, you can also use the Rx Gate and Tx Key lines, as described below.
  • Page 6 If you do not require continuous transmission, you can use the Tx Key input Tx Key on the system interface board to key up the TB8100, and to key it down when transmission is not required. Note...
  • Page 7: Configuring The Base Station

    Important Selecting this function bypasses the limiter. This may allow overdeviation and cause the equipment to become non- compliant. It should be selected only when the TB8100 is connected to approved level-controlled devices (modems, trunking controllers, etc.). Important...
  • Page 8: Performance Specifications

    The performance figures given in these specifications are typical, and are supplied only as a guide to the expected performance. The actual performance achieved by your system will depend on the specific external modem used, and the interface levels into the TB8100. NB C4FM NB GMSK...
  • Page 9: Frequency Response Graphs

    21 December 2005 D Reynolds Amendment Record Publication Date Page Amendment 21 December 2005 First release Tait Contact Information Tait Electronics Limited, P.O. Box 1645, Christchurch, New Zealand Corporate Head Office E-mail (Marketing): taitnet@taitworld.com New Zealand E-mail (Sales): sales@taitworld.com Technical Support Manager Technical Support Tait Electronics Ltd, P.O.
  • Page 10 Page 10 of 10 TN-1114-AN © Tait Electronics Limited 21 December 2005...

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