Rule 4: Interconnect Cables - HBM Genesis GEN5i User Manual

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B What do I need?
A commonly used configuration is to place a lightning arrestor where the
antenna cable enters the building (either inside or outside), because there
is often a good earth ground nearby to connect to. If the cable between this
lightning arrestor and the GPS receiver is longer than four meters, it is good
practice to place a second lightning arrestor within four meters of the GPS
receiver. The second arrestor reduces any lightning-induced voltages in
the cable to the receiver.
C Grounding
The lightning arrestor does not need a grounding strap if it is directly bolted
to a grounding plate. A grounding strap should be used if you cannot
connect directly to a grounding plate.
D Caution
If you are not comfortable designing your own lightning protection system,
seek professional assistance. This is only a guide.

Rule 4: Interconnect cables

A Cable options
Symmetricom's interconnect cables are available in various lengths. For
ease of pulling antenna system cable through a conduit, or if you wish to
cut the cable to an exact length, you may choose to have a connector on
only one end.
B Multiple antenna site installations
Multiple site installations may be done more efficiently using bulk cable and
a connector installation tool kit. For more information about multiple
antenna site installations or general questions about GPS antenna system
installation, please contact Symmetricom's Customer Technical
Assistance Center.
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