Cruisers Forum
 


Reply
 
Thread Tools Search this Thread Rate Thread Display Modes
Old 10-08-2020, 21:17   #1
Registered User

Join Date: Dec 2016
Location: Vallejo, CA
Boat: CHB Tri-Cab 35ft
Posts: 78
Ethernet to USB stop radar lightning strike?

Hi,

OpenCPN recommends that when connecting a radar ethernet plug to a PC you use a 100 mb or gigabyte switch to minimize damage from a lightning strike.

My HP PC only has USB C ports and I'm using a Plugable network adapter to a USB A hub, then a converter to USB C.

Does the ether to USB adapter act as a buffer to lightning strike?

Thanks,

Armand
__________________
Armand Seguin
Vallejo Calif
USCG Master
armand.seguin is offline   Reply With Quote
Old 13-08-2020, 21:47   #2
Moo
Registered User

Join Date: Mar 2017
Posts: 749
Re: Ethernet to USB stop radar lightning strike?

None of that will help in the case of a lightening strike. The switch may act as a sacrificial component if you are lucky... But in general I would say that is bad advice.
Moo is offline   Reply With Quote
Old 13-08-2020, 23:00   #3
Registered User

Join Date: Dec 2016
Location: Vallejo, CA
Boat: CHB Tri-Cab 35ft
Posts: 78
Re: Ethernet to USB stop radar lightning strike?

Quote:
Originally Posted by Moo View Post
None of that will help in the case of a lightening strike. The switch may act as a sacrificial component if you are lucky... But in general I would say that is bad advice.
Moo,

Thanks.

I definitely noted the recommendation of a switch in the radar thread, and maybe the concept was that it would be sacrificed rather than the laptop. We don't get a lot of lightning in the San Francisco Bay area, but I don't want to be foolish. On the other hand, adding a switch creates several more places for faulty connections. I think I have enough of those.

Thanks for your thoughts.

Armand
__________________
Armand Seguin
Vallejo Calif
USCG Master
armand.seguin is offline   Reply With Quote
Old 30-09-2020, 15:13   #4
Registered User
 
skkeith's Avatar

Join Date: Mar 2013
Location: Santa Cruz
Boat: 1975 Isander 28
Posts: 111
Re: Ethernet to USB stop radar lightning strike?

This is a joke right? Obviously not founded in physics or electronics. I would be interested to hear a real story with pictures of a switch somehow sacrificing itself in a lightning strike. This sounds super bogus. Anyone have real pictures of the aftermath of a real lightning strike?
skkeith is offline   Reply With Quote
Old 30-09-2020, 16:31   #5
Registered User

Join Date: Jun 2013
Location: canada
Posts: 3,831
Re: Ethernet to USB stop radar lightning strike?

would ‘t the radar be connected to a wireless router via lan port. And your computer via wifi. Why you you want cables stoping you from moving your computer.
smac999 is offline   Reply With Quote
Old 30-09-2020, 17:09   #6
Registered User

Join Date: Aug 2009
Location: oriental
Boat: crowther trimaran 33
Posts: 3,997
Re: Ethernet to USB stop radar lightning strike?

I think your radar is toast, but you could unplug the ethernet during storms and maybe this would save the electronics that they plug into.



It is said that if you ground the mast to the water, you are safer in a strike. Safer from being struck yourself and the boat is unlikely to get holed. It's also less likely to damage electronics especially in non-direct strikes


If you do ground your mast, you are more likely to receive a lightning strike.
seandepagnier is offline   Reply With Quote
Old 30-09-2020, 18:19   #7
Registered User

Join Date: Mar 2016
Location: New England. USA.
Boat: McCurdy & Rhodes Custom 46
Posts: 1,288
Re: Ethernet to USB stop radar lightning strike?

Real world experience ( kind of) here.
I had a direct lightning hit on a tree 15 feet from my head where I was sleeping in my bedroom.
Woke me right up. Blew a pile of lumber forty plus feet from the tree. That lumber used to be the tree trunk. It missed the neighbors cars. Phew.
The cordless phone in the bedroom failed. The Ethernet switch downstairs failed. The Ethernet port on a pc motherboard on the opposite side of the house failed. We bought a new tv.
The failed motherboard was 40 feet or more from the strike, but the local switch (which survived, go figure) was tied to the downstairs switch by a cable that was about 60 feet long and run everywhere.
The Mac on the same switch survived.
So a switch might protect you. Or it might not. And thatís an indirect pulse from a strike.
dfelsent is offline   Reply With Quote
Old 01-10-2020, 03:30   #8
Registered User

Join Date: Mar 2019
Location: I'm in Johannesburg, boat in Cape Town :(
Boat: 1986 Bruce Roberts 45 raised saloon
Posts: 234
Re: Ethernet to USB stop radar lightning strike?

We get violent thunderstorms during summer in Johannesburg RSA, I use a network surge protector at any LAN connected device.

Just Google "network surge protector", my local producer is a company called Clearline who make pretty good kit, you may need to find a different source.

If you do something like this then make sure the surge protector ground lead has a solid connection to earth (sea water).
markcouz is offline   Reply With Quote
Reply

Tags
lightning, radar

Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes Rate This Thread
Rate This Thread:

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
Simrad Halo 20 ethernet to USB? armand.seguin OpenCPN 5 23-07-2020 11:07
Installation problems with Ethernet using Navico Radar and OpenCPN in Ubuntu Pegasos OpenCPN 20 06-10-2018 10:12
Radar Plugin using USB Ethernet Adapter svhonalee OpenCPN 25 26-07-2018 11:32
Ethernet AIS and radar into OpenCPN Daurin OpenCPN 36 05-02-2018 13:27
Navico Radar/Ethernet Question Dockhead OpenCPN 6 11-07-2017 02:19

Advertise Here


All times are GMT -7. The time now is 18:28.


Google+
Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2022, vBulletin Solutions, Inc.
Social Knowledge Networks
Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2022, vBulletin Solutions, Inc.

ShowCase vBulletin Plugins by Drive Thru Online, Inc.