[Amps] Lightning strike - Alpha 77Sx grid issue

Jerry O. Stern jsternmd at att.net
Sun Dec 1 08:51:37 EST 2019

I have seen USB transmission pairs isolated by fiberoptic cable (you pick
the length).   Proper bonding and interconnected single point grounding
critical but not sure why Jim says not to use MOV's as additional

Jerry NY2KW
-----Original Message-----
From: Amps [mailto:amps-bounces at contesting.com] On Behalf Of Jim Brown
Sent: Sunday, December 1, 2019 3:45 AM
To: amps at contesting.com
Subject: Re: [Amps] Lightning strike - Alpha 77Sx grid issue

On 11/30/2019 9:27 PM, Gary Smith wrote:
> Is there any device made to protect USB lines?

1) Proper bonding!
2) Get power for all interconnected equipment from mains power outlets that
either share the same green wire, or whose green wires are bonded together
at the outlets.
3) NEVER use MOV outlet strips or other MOV devices.

73, Jim K9YC

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