[time-nuts] Lightning 1, tbolt 0.

Mark Kahrs mark.kahrs at gmail.com
Thu Mar 31 12:06:02 EDT 2016


I had a lightning strike on our roof last year - blew slate tiles at
least 15 meters away.  Burnt out several ports on my ethernet
switches.  And also took out my Symmetricom TS2100 GPS clock in
strange ways.  If anyone wants a peculiar TS2100L then let me know!



On Thu, Mar 31, 2016 at 9:13 AM, paul swed <paulswedb at gmail.com> wrote:
> Scott
> Sorry to hear that.
> I do not know whats used on the output.
> But your guess is pretty good. I had a nearby strike on a tree 50 ft away
> and it damaged a ton of equipment. Yes it was all grounded and not to start
> a debate here about grounding and such.
> Its just that a strike that close creates one heck of a pulse. Further
> todays homes may have a lot more wire in them phone cable power and
> ethernet. So lots of ways to carry the pulse.
> So if you do find the chips great.
> BUT I have experienced this numbers of times. Something about high clear
> and flat for the house. What you may see in the next 90 days is a slow but
> sure degradation of things. Just sort of watch out for it. Hard to notice,
> but one day maybe your computer has a hard time booting.Maybe the TV volume
> control starts to act odd.
>
> Good luck
> Paul
> WB8TSL
>
> On Wed, Mar 30, 2016 at 10:06 PM, Scott Newell <newell+timenuts at n5tnl.com>
> wrote:
>
>> 10 MHz output active, no PPS, no comm with LH.
>>
>> My tbolt was disconnected from the outdoor GPS antenna today, and so I
>> wasn't too concerned when we had a strike in the backyard this morning. The
>> PC attached to the serial port and PPS output died, and that cable was
>> fairly long, so I guess that's what did it in.
>>
>> Anyone know off hand what part it uses for the serial driver and the PPS
>> output buffer? Or is it likely a total loss?
>>
>> --
>> newell N5TNL
>>
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