19-09-2016, 05:25 PM
(This post was last modified: 19-09-2016, 05:26 PM by Mike Watterson.)
All good advice.
It's an issue even with modern systems!
Sharing TV, Satellite, Intercom, HiFi, even networks between neighbours should be via a proper earthed barrier. There are documents on safety and barrier earthing and isolation for "Multi-Dwelling" installations (usually apartments but not always). Sharing a satellite dish may exceed the isolation rating of poorly specified SMPSU input filter capacitors due to neighbouring houses on different phases. The satellite receivers and TVs often have no earth.
The LNBs though should always be isolated from the dish, which sometimes ought to have a separate local earth spike, but often isn't explicitly earthed.
It's an issue even with modern systems!
Sharing TV, Satellite, Intercom, HiFi, even networks between neighbours should be via a proper earthed barrier. There are documents on safety and barrier earthing and isolation for "Multi-Dwelling" installations (usually apartments but not always). Sharing a satellite dish may exceed the isolation rating of poorly specified SMPSU input filter capacitors due to neighbouring houses on different phases. The satellite receivers and TVs often have no earth.
The LNBs though should always be isolated from the dish, which sometimes ought to have a separate local earth spike, but often isn't explicitly earthed.
