98-175666-C
Appendix E: Grounding and RF protection
E-8
Grounding Recommendations
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
ADU as illustrated below. Remember to seal the joint with protective coating to avoid
corrosion.
Figure E-7: Isolation of the ADU from the mounting base
Isolating shoulder bush
Isolating washer
Plain washer
Spring washer
(stainless steel)
(stainless steel)
Figure E-8: ADU isolation and grounding cable
Isolating shoulder bush
Plain washer (stainless steel)
Spring washer (stainless steel)
Plain washer (stainless steel)
Serrated washer (stainless steel)
Ground cable
Ground cable