[Elecraft] Lightning "protection"

Essentially, your antenna is a lightning rod. Lightning rods don't "attract" lightning. The dissipate the charge differential between the cloud and earth before the charge builds sufficiently to provide a path for a "leader" charge from earth to the cloud. When a "leader" is established, the

[Elecraft] lightning protection

C) From: Don Roberts To:"elecraft@mailman.qth.net" Subject: [Elecraft] lightning protection Message-ID:<1544142990.4511672.1611409655...@mail.yahoo.com> Content-Type: text/plain; charset=UTF-8 In addition to everything else suggested, I disconnect all coax cables outside my home an

[Elecraft] lightning protection

In addition to everything else suggested, I disconnect all coax cables outside my home and let them lay on the ground. I  use a trailer type connector to unplug my antenna rotator. I further use a heavy duty DPDT switch for my full wave 80 meter loop, not to ground but to open. (lightning

Re: [Elecraft] Lightning protection.

From: elecraft-boun...@mailman.qth.net > On Behalf Of Wes > Sent: Monday, August 17, 2020 8:12 PM > To: elecraft@mailman.qth.net > Subject: Re: [Elecraft] Lightning protection. > > I took a quick look at these on Amazon.. Hugely expensive and very > unreliable. > > Wes N7WS

Re: [Elecraft] Lightning protection.

It looks like the fiber optic cable from Corning has 28AWG wires end to end! -Original Message- From: elecraft-boun...@mailman.qth.net On Behalf Of Wes Sent: Monday, August 17, 2020 8:12 PM To: elecraft@mailman.qth.net Subject: Re: [Elecraft] Lightning protection. I took a quick look

Re: [Elecraft] Lightning protection.

I took a quick look at these on Amazon.. Hugely expensive and very unreliable. Wes  N7WS On 8/17/2020 3:40 PM, Byron Servies wrote: FYI, Corning makes an integrated USB/fiber -> fiber/usb solution:

Re: [Elecraft] Lightning protection.

FYI, Corning makes an integrated USB/fiber -> fiber/usb solution: https://www.corning.com/optical-cables-by-corning/worldwide/en/products/usb-optical-cables.html 73, Byron N6NUL On Mon, Aug 17, 2020 at 9:11 AM Barry Baines via Elecraft wrote: > > Dave: > > > On Aug 15, 2020, at 11:05 AM, Dave

Re: [Elecraft] Lightning protection.

Dave: > On Aug 15, 2020, at 11:05 AM, Dave Baxter via Elecraft > wrote: > > FYI. > > RS232 (and other serial link type) LEMP (Lightning Electro Magnetic Pulse) > surge protectors are available from several vendors, and not that > expensive, compared to the cost of a rig, or top range PC. > >

Re: [Elecraft] Lightning protection.

FYI. RS232 (and other serial link type) LEMP (Lightning Electro Magnetic Pulse) surge protectors are available from several vendors, and not that expensive, compared to the cost of a rig, or top range PC. Often wonder why (other than expence) fibre optic links are not used. CAT & audio over a

[Elecraft] Lightning Protection (was-Re: suggested PC???)

Neil: > On Jan 6, 2016, at 8:25 AM, Neil Zampella wrote: > > FWIW ... I've got everything setup wired in the shack, but everything (cable > coax, ethernet, power) runs through an uninterruptible power supply (ups). > Many of the higher end models provide not only power

Re: [Elecraft] Lightning Protection (was-Re: suggested PC???)

Two things I've found to be a big deterrent regarding lightning damage: (a) all driven grounds must be bonded back to the AC mains ground and this must be done outside of the house. I use some 1/2" flexible copper water line as my bonding conductor. It is trenched around the outside of the

Re: [Elecraft] Lightning Protection (was-Re: suggested PC???)

n.qth.net] On Behalf Of Jim Brown Sent: Wednesday, January 6, 2016 1:35 PM To: elecraft@mailman.qth.net Subject: Re: [Elecraft] Lightning Protection (was-Re: suggested PC???) YES! Another VERY important thing is to NEVER use "MOV surge protectors" on branch circuits. They're great a

Re: [Elecraft] Lightning Protection (was-Re: suggested PC???)

and are easy to spot defective ones. 73, Fred, AE6QL -Original Message- From: Elecraft [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Jim Brown Sent: Wednesday, January 6, 2016 1:35 PM To: elecraft@mailman.qth.net Subject: Re: [Elecraft] Lightning Protection (was-Re: suggested PC???) YES

Re: [Elecraft] Lightning Protection (was-Re: suggested PC???)

>> (b) Install a whole house surge protector at the main breaker >> panel. These are sometimes referred to as Secondary Surge >> Protectors. Usually should be installed by a qualified licensed >> electrician. The buzz word for these is "TVSS" (Transient Voltage Surge Suppressor). I recently

Re: [Elecraft] Lightning Protection (was-Re: suggested PC???)

Sorry, should have been more specific. I'm talking TV cable coax, which goes though the UPS surge suppression system, rudimentary, but it works where I'm at currently. That said, you've given me some ideas on what to do when we eventually move to someplace where I can put up more than a 60

Re: [Elecraft] Lightning Protection (was-Re: suggested PC???)

YES! Another VERY important thing is to NEVER use "MOV surge protectors" on branch circuits. They're great at the service entrance, as Bob recommends, but they CAUSE equipment damage when used on branch circuit, because the MOVs dump the lightning spike onto the Green wire, which creates a

Re: [Elecraft] Lightning protection

I think the problem is that many of our shacks are not ideally situated, and the grounding standards cannot be fully implemented. Mine, for example, is on the second floor of an old house. A low inductance ground is impossible to come by up here, and while I believe the engineering theory

Re: [Elecraft] Lightning Protection articles

Joe, Details on *my* perimeter ring -- I put mine in while backfilling around the foundation, used #4 wire and placed it 6 to 12 inches under the final grade. It is located quite near the foundation - from zero to 12 inches. There is a driven 8 ft. ground rod at every corner and any other

Re: [Elecraft] Lightning Protection articles

OK, this thread has morphed into lightning protection related topics, and I have changed the subject line. I checked the PolyPhaser site and the information is no longer there. ARRL Archives has the best one I know about. It was a 3 part publication run in June, July and August of 2002. Author

Re: [Elecraft] Lightning Protection articles

I think these may be the PolyPhaser articles Don was referring to. http://www.polyphaser.com/technical_notes.aspx 73 -- Joe KB8AP On Jan 21, 2010, at 3:56 PM, Don Wilhelm wrote: OK, this thread has morphed into lightning protection related topics, and I have changed the subject line. I

Re: [Elecraft] Lightning Protection articles

Hi Don, The KB2UYT articles from 2002 mentions a perimeter ring, but gives no real details as to the construction and installation of the ring. An article by KD7PEI in the 8/2008 QST gives more details, but still fails to answer some questions such as: How far away from the building