i
Table of Contents
Chapter 1 Preparing for Installation.................................................. 1
Receiving ............................................................................................. 1
Unpacking ............................................................................................ 1
Check the System ................................................................................. 2
Chapter 2 Installing the Mounts ........................................................ 3
Before Beginning Mount Installation: ...................................................... 3
Mark Mount Locations on the Mounting Pole ........................................... 3
Installing the Radiator Mounts on the Pole.............................................. 3
Installing the 4-Way Power Divider Mounts on the Pole ........................... 4
Installing the Main Power Divider Mounts
(if applicable) .................................................................... 6
Chapter 3 Installing the Radiators and Power Dividers..................... 8
Before Beginning Radiator and Power Divider Installation: ....................... 8
Installing Radiators ............................................................................... 8
Installing Power Dividers ....................................................................... 9
Chapter 4 Installing the Coaxial Feed System ................................. 10
Before Beginning Feed System Installation: .......................................... 10
Installing the Power-Divider-to-Radiator Cables..................................... 11
Installing the Main Power Divider (if applicable) .................................... 12
Installing the Main Feed Cables............................................................ 12
Chapter 5 Pressurization and Startup.............................................. 14
Before Beginning Pressurization: .......................................................... 14
Pressurization Procedure ..................................................................... 14
Step 1. Leak Testing....................................................................... 14
Step 2. Purging the System............................................................. 16
Step 3. Leaving the System Pressurized ........................................... 17
Before Beginning Intial Characterization: .............................................. 17
Initial Characterization (recommended) ................................................ 18
Step 1. Transmission Line VSWR Reading ........................................ 18
Step 2. Transmission Line TDR Reading ........................................... 19
Step 3. System VSWR Reading........................................................ 19
Step 4. Checking Radiator Function ................................................. 19
Checkout............................................................................................ 19
Chapter 6 Operation......................................................................... 21
Precautions ........................................................................................ 21
The Antenna....................................................................................... 21
Chapter 7 Troubleshooting .............................................................. 22
Precautions ........................................................................................ 22
Internal Arcing.................................................................................... 22
Broad Spectrum RF Noise .................................................................... 23
High VSWR at Startup or during Operation............................................ 23
Erratic VSWR ...................................................................................... 24
Change in Coverage ............................................................................ 24
Pressure Loss or Excessive Gas Usage .................................................. 24