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[QUOTE=&quot;SWHouston, post: 147047, member: 4580&quot;]Not to worry.J-Mounts don't present a very good source for a lightning strike.The thought being...If you just rely on the ground provided via the shield in the Coax, you reduce the &quot;attractiveness&quot;.Also, it's very dangerous to run a (jacketed/bare) wire across any flammable (shingles/trim) for a ground*.The proper way is to run your ground wire through an ungrounded tube like metal conduit.Should then, a direct strike happen, the molten metal from the ground wire, is contained, and separated from your house.FYI:&nbsp; There are three &quot;threats&quot; from lightening.A direct strike.There's nothing you can do to prevent damage, only limit it.A near strike.Not on your electrical source, causing EMF, which may cause damage to your receivers.A distant strike.On your electrical source, causing a surge.&nbsp; This can be limited/eliminated by having good Surge Protection.* = Example of shielded ground wire:<img src="http://www.dtvusaforum.com/members/swhouston-albums-swh-1-picture3453-groundsystem.jpg" class="bbImage" alt="" data-url="http://www.dtvusaforum.com/members/swhouston-albums-swh-1-picture3453-groundsystem.jpg" />[/QUOTE]

[QUOTE="SWHouston, post: 147047, member: 4580"]Not to worry. J-Mounts don't present a very good source for a lightning strike. The thought being... If you just rely on the ground provided via the shield in the Coax, you reduce the "attractiveness". Also, it's very dangerous to run a (jacketed/bare) wire across any flammable (shingles/trim) for a ground*. The proper way is to run your ground wire through an ungrounded tube like metal conduit. Should then, a direct strike happen, the molten metal from the ground wire, is contained, and separated from your house. FYI: There are three "threats" from lightening. A direct strike. There's nothing you can do to prevent damage, only limit it. A near strike. Not on your electrical source, causing EMF, which may cause damage to your receivers. A distant strike. On your electrical source, causing a surge. This can be limited/eliminated by having good Surge Protection. * = Example of shielded ground wire: [IMG]http://www.dtvusaforum.com/members/swhouston-albums-swh-1-picture3453-groundsystem.jpg[/IMG][/QUOTE]

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