Appendix C: Grounding and RF protection
Separate ground cable
169
CCCC
Gr
ounding
and
RF
C.9.3 Isolation of the antenna from the mounting base
In cases where the antenna is to be isolated from the mounting base, shoulder
bushings and washers (accessories) must be used as illustrated below. Please
note that the isolation has to be implemented on all four mounting bolts
(including the bolt securing the ground cable).
The ground cable must be connected at one of the mounting/grounding bolts
on the antenna as illustrated below. Remember to seal the joint with
protective coating to avoid corrosion.
Isolating shoulder bush
Isolating washer
Plain washer
Spring washer
(stainless steel
(stainless steel)
Isolating shoulder bush
Plain washer (stainless steel)
Spring washer (stainless steel)
Plain washer (stainless steel)
Serrated washer (stainless steel)
Ground cable
Ground cable
Summary of Contents for FB250
Page 13: ...Table of contents xii ...
Page 77: ...Chapter 3 Connecting power 64 Connecting power ...
Page 105: ...Chapter 5 Starting up the system 92 Operating the system ...
Page 129: ...Chapter 6 Service and repair 116 Replacing modules in 34 3052B antenna ...
Page 139: ...Chapter 7 Troubleshooting 126 Logging of events ...
Page 165: ...Appendix B Technical specifications 152 TracPhone terminal ...
Page 197: ...Glossary 184 ...