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A comment on Old TV caused village broadband outages for 18 months. Parent comment

Re:Old TV caused village broadband outages for 18 months by robocat on Tuesday September 22, 2020 @04:41PM (#24559643)
What do you mean by “galvanic isolator”? Link to coax example device? I’ve never heard the term before and a quick google is showing something irrelevant. NZer, so the language barrier exists!
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Re:Old TV caused village broadband outages for 18 months by 8bitsrule on Tuesday September 22, 2020 @11:40PM (#24562706)
Hadn't heard the term before. Looks like its two diodes in parallel, pointing opposite directions, in a very-expensive box. Blocks low-voltage DC flow while allowing higher-voltage AC currents to pass. Looks like maritime usage is common.

http://www.yandina.com/galvanicIsolator.htm

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Re:Old TV caused village broadband outages for 18 months by jhiesey on Tuesday September 22, 2020 @05:15PM (#24560005)
Probably an isolation transformer. A search for “cable tv isolation transformer” gives lots of results.
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