Jim GM4 DHJ ... wrote:
On 06/11/2020 18:47, charles wrote:
In article rir.org.uk,
Brian Morrison wrote:
On Fri, 06 Nov 2020 15:46:20 +0000, The Natural Philosopher wrote:

A galvanic isolator is a way to prevent corrosion in boats. WTF is one
doing in a Broadband setup?

It is used to disconnect the internal equipment from the external
broadband cabinet and equipment. It also acts to prevent ground loops via
the coax cable that supplies the cable broadband signal. It might be what
everyone else calls a braid breaker.

Putting it in the 'wrong' position might cause a change in SNR, that
depends on exact details of the property and wiring.

Yes, the cable cabinet and the house might be on different phases.

thanks this seems to be the problem


You are even thicker than I thought possible.