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Table of Contents
Chapter 4 Startup and Operation .....................................................27
Precautions......................................................................................... 27
Pressurization ..................................................................................... 27
Test for leaks ................................................................................ 27
Purge the system .......................................................................... 27
Figure 14 Pressurized gas schematic.............................................. 28
Table 5 Volume of coax per 1000 feet of length.............................. 29
Leave the system pressurized......................................................... 29
Impedance trimming ........................................................................... 30
Figure 15 Impedance-matching transformer ................................... 30
Table 6 Factory control rod settings............................................... 30
System sweep (recommended) ............................................................ 31
Checkout ............................................................................................ 31
Antenna operation............................................................................... 32
De-icer system operation ..................................................................... 32
Shively Labs de-icer control system ................................................ 32
Chapter 5 Maintenance ....................................................................33
Precautions......................................................................................... 33
Maintenance log.................................................................................. 33
Physical inspection .............................................................................. 33
De-Icer check ..................................................................................... 34
Paint .................................................................................................. 34
Radiator removal for repair .................................................................. 34
Return policy ...................................................................................... 34
Troubleshooting .................................................................................. 34
Internal arcing .............................................................................. 34
Broad spectrum RF noise ............................................................... 34
High VSWR at startup or during operation....................................... 35
Erratic VSWR during impedance trimming ....................................... 35
Change in coverage....................................................................... 35
Pressure loss or excessive gas usage .............................................. 36
Sample maintenance log...................................................................... 37
