Elecraft

Re: Lightning protection.

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Elecraft mailing list

Re: 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 LAN or USB FO link?

Would help general EMC issues too.

Dave G0WBX
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Elecraft mailing list

Re: Lightning protection.

Dave:

> On Aug 15, 2020, at 11:05 AM, Dave Baxter via Elecraft <[hidden email]> 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.
>
> Often wonder why (other than expence) fibre optic links are not used. CAT
> & audio over a LAN or USB FO link?
>
> Would help general EMC issues too.

Following a lightning incident back in 2014, I followed the adage that Al, N4ZZ put out about using Fiber in the shack for ethernet connections. I have four fiber lines from the house to the garage/hamshack that replaced two ethernet lines. Each is 111. ft long. Each line carries a grouping of connections such as one for my Flex system, one for my Electraft system, one for Broadcastify and data collection, and the fourth for ‘all other’. I have my network in the shack segregated so that if the Flex system goes out the Elecraft system will hopefully continue. Given that I primarily operate remotely, redundancy in amateur operations is critical because it may be 4-6 weeks between visits to the ham shack that is over 1,280 miles away.

I also use fiber as a ‘fire break’ between network switches in the shack and high value equipment such as transceivers.

I haven’t found suitable fiber media converters for RS232 or USB. I still have Telco and CATV coax running between the house and shack; it would be nice to find a fiber media converter for those lines as well. I will probably remove them given they are not currently in use.

FWIW,

Barry Baines, WD4ASW
(Currently in Boston/Roslindale, MA)

>
> Dave G0WBX
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Byron Servies

Re: 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
<[hidden email]> wrote:

>
> Dave:
>
> > On Aug 15, 2020, at 11:05 AM, Dave Baxter via Elecraft <[hidden email]> 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.
> >
> > Often wonder why (other than expence) fibre optic links are not used. CAT
> > & audio over a LAN or USB FO link?
> >
> > Would help general EMC issues too.
>
> Following a lightning incident back in 2014, I followed the adage that Al, N4ZZ put out about using Fiber in the shack for ethernet connections. I have four fiber lines from the house to the garage/hamshack that replaced two ethernet lines. Each is 111. ft long. Each line carries a grouping of connections such as one for my Flex system, one for my Electraft system, one for Broadcastify and data collection, and the fourth for ‘all other’. I have my network in the shack segregated so that if the Flex system goes out the Elecraft system will hopefully continue. Given that I primarily operate remotely, redundancy in amateur operations is critical because it may be 4-6 weeks between visits to the ham shack that is over 1,280 miles away.
>
> I also use fiber as a ‘fire break’ between network switches in the shack and high value equipment such as transceivers.
>
> I haven’t found suitable fiber media converters for RS232 or USB. I still have Telco and CATV coax running between the house and shack; it would be nice to find a fiber media converter for those lines as well. I will probably remove them given they are not currently in use.
>
>
>
> FWIW,
>
> Barry Baines, WD4ASW
> (Currently in Boston/Roslindale, MA)
>
>
> >
> > Dave G0WBX
> > ______________________________________________________________
> > Elecraft mailing list
> > Home: http://mailman.qth.net/mailman/listinfo/elecraft
> > Help: http://mailman.qth.net/mmfaq.htm
> > Post: mailto:[hidden email]
> >
> > This list hosted by: http://www.qsl.net
> > Please help support this email list: http://www.qsl.net/donate.html
> > Message delivered to [hidden email]
>
> ______________________________________________________________
> Elecraft mailing list
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>
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--
- Northern California Contest Club
- CU in the Cal QSO Party 3-4 Oct 2020
- www.cqp.org
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Wes Stewart-2

Re: 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:
>
> https://www.corning.com/optical-cables-by-corning/worldwide/en/products/usb-optical-cables.html
>
> 73, Byron N6NUL
>
>

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ktalbott

Re: Lightning protection.

It looks like the fiber optic cable from Corning has 28AWG wires end to end!

-----Original Message-----
From: [hidden email] <[hidden email]> On Behalf Of Wes
Sent: Monday, August 17, 2020 8:12 PM
To: [hidden email]
Subject: 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:
>
> https://www.corning.com/optical-cables-by-corning/worldwide/en/product
> s/usb-optical-cables.html
>
> 73, Byron N6NUL
>
>

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Brian Broggie

Re: Lightning protection.

Yep. Supplies +5 & gnd to the optical enc/decoder at each end. The signal
lines are fiber optic.
Brian, W6FVI

On Tue, Aug 18, 2020 at 5:43 AM <[hidden email]> wrote:

> It looks like the fiber optic cable from Corning has 28AWG wires end to
> end!
>
> -----Original Message-----
> From: [hidden email] <[hidden email]>
> On Behalf Of Wes
> Sent: Monday, August 17, 2020 8:12 PM
> To: [hidden email]
> Subject: 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:
> >
> > https://www.corning.com/optical-cables-by-corning/worldwide/en/product
> > s/usb-optical-cables.html
> >
> > 73, Byron N6NUL
> >
> >
>
> ______________________________________________________________
> Elecraft mailing list
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> Help: http://mailman.qth.net/mmfaq.htm
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>
> This list hosted by: http://www.qsl.net
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>
> ______________________________________________________________
> Elecraft mailing list
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>
> This list hosted by: http://www.qsl.net
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>