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Table of Contents Manual 7-9487 - 3 05/05/11

Table of Contents

General Description ............................................................................................ 1

Tower Top Box .................................................................................................... 2
Base Control Unit ................................................................................................ 3

Base Control Unit Styles..................................................................................... 3

  MCU .................................................................................................................... 3
    Functional Block Diagram.................................................................................. 3
  CMU .................................................................................................................... 9
    Functional Block Diagram.................................................................................. 9

Unpacking .......................................................................................................... 10
Pre-Installation Checkout ................................................................................. 10

Mechanical Inspection ..................................................................................... 10
Initial Power-up Test ......................................................................................... 10
Bench Testing ................................................................................................... 11

Installation.......................................................................................................... 13

Test Transmission Line ..................................................................................... 13

Installing the System ........................................................................................ 14
Installing the Tower-Top Box ........................................................................... 14
In-building Lightning Arresters .......................................................................... 18
Installing the Base Control Unit ........................................................................ 18
Interference and IM Considerations .................................................................. 20

Feedline Data ..................................................................................................... 20
Optimizing the System ...................................................................................... 20
Attenuation Settings ......................................................................................... 21

  Reserve Gain..................................................................................................... 21
  Receiver Multicoupler Distribution (MCU Only) ................................................. 21
  Setting the MCU Reserve Gain Attenuation ...................................................... 21
  Setting the CMU Reserve Gain Attenuation ...................................................... 22
    GTR8000 Attenuator Adjustment .................................................................... 23
  Reserve Gain Adjustment Procedure ................................................................ 23
  Setting Distribution Attenuation (MCU Only) ..................................................... 24
    Adjustment Procedure ..................................................................................... 24

Spectrum Analysis ............................................................................................ 24

Procedure for Spectral Analysis ........................................................................ 25

Operational Tests (Sensitivity and Degradation) ........................................... 27

  Front Panel Test Port ........................................................................................ 27
  Tower Top Amplifier Inputs................................................................................ 27
  Static System Sensitivity ................................................................................... 27
  Measuring Static Sensitivity (Load Connected) ................................................. 27
  Effective System Sensitivity............................................................................... 30
  Measuring Effective Sensitivity (Antenna Connected)....................................... 30
  Degradation ....................................................................................................... 30

Routine Operation ............................................................................................. 30

  Amplifier Monitoring........................................................................................... 31
  LCD Display....................................................................................................... 31
    Current Draw ................................................................................................... 31
    TTA Temperature ............................................................................................ 31
    Software Version ............................................................................................. 31
  Front Panel LED’s ............................................................................................. 32
  Form-C Contacts ............................................................................................... 32