All the lightning damage I've ever had to coax cables was pretty easy to find.
It blew the cable apart in several places!
73, Stew K3ND
--- On Tue, 7/20/10, firstname.lastname@example.org <email@example.com> wrote:
> From: firstname.lastname@example.org <email@example.com>
> Subject: Re: [TowerTalk] LMR-400, damage?
> To: TOWERTALK@contesting.com
> Cc: firstname.lastname@example.org
> Date: Tuesday, July 20, 2010, 8:26 PM
> I think that it is unlikely the LMR
> was damaged, especially since you have
> no other evidence that a lightning strike occurred.
> While cable damage is
> possible, I have had numerous lightning strikes and have
> only seen one cable
> failure, a generic RG-213 where the outer jacket blew
> apart. You can
> physically look at your cable and perhaps check the SWR.
> To: Towertalk <email@example.com>
> Subject: [TowerTalk] LMR-400, damage?
> From: Steven McGehee <firstname.lastname@example.org>
> Date: Tue, 20 Jul 2010 16:43:03 -0400
> List-post: <email@example.com">mailto:firstname.lastname@example.org>
> I have a 150ft piece of Times Microwave LMR-400 in
> production with one
> end inside structure and the other connecting to a
> transceiver on a
> rooftop. We had some electrical storms come through in the
> past few
> days, and one evening we lost both the transceiver and the
> IDU (indoor
> unit) controller of said transceiver. Both were damaged and
> strangely, replacing just one of the two didn't work. To
> get the system
> functioning again we had to replace both the transceiver
> and the IDU.
> My question is, assuming the damage was caused by lighting
> (I haven't
> found any hard evidence to suggest it was, but, it seems to
> be the case,
> awfully coincidental otherwise) -- could/does LMR-400 "get
> damaged" by
> lightning? I feel like that's a very basic question, but I
> just want to
> be sure we don't need to replace that cable in addition to
> the two
> components we have replaced. Since the replacement work
> (two days),
> everything has been fine, but I didn't know if maybe,
> somehow, the
> internals of the LMR were potentially damaged too.
> On that note, is there anyway to test an LMR cable? In
> scenarios I use a Fluke brand cable tester, is there a
> similar tool that
> can be used for "checking" LMR-400?
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