Tweakers' Asylum Tweaks for systems, rooms and Do It Yourself (DIY) help. FAQ. |
|
In Reply to: RE: Slight hum through speakers that comes and gos posted by alley -kat on December 18, 2015 at 05:07:59:
The reason you are experiencing the ground loop is because there is a difference of potential, voltage, between the outer shield of the SAT RG6 coax cable and the safety equipment ground at the wall AC power receptacle.
You say it comes and goes. Have you notice the hum more so during dry times and not during wet rainy times where the soil outside is moistened from the rain? Or possibly just the opposite happening?
I would you suggest you go outside you home to where the SAT Dish is located. Follow the RG6 coax cable from the dish to where it starts to enter your house. Just before it enters your house you should see a metallic thing that looks kind of like a splitter. The device is actually a grounding block that is used to connect the SAT Dish and the shield of the coax cable to the main electrical grounding system of the electrical service of your house.
An improperly connect ground connection can be the problem. Also a loose and or corroded connection can be the problem. Go outside and look for the grounding block. You should see a #10 wire connected to the block. Follow the wire and see where the other end connects to. Post back your findings. Also check for loose or corroded connections.
This post is made possible by the generous support of people like you and our sponsors:
Follow Ups
- RE: Slight hum through speakers that comes and gos - jea48 09:42:53 12/18/15 (6)
- RE: Slight hum through speakers that comes and gos - alley -kat 10:14:00 12/18/15 (4)
- RE: Slight hum through speakers that comes and gos - jea48 12:17:10 12/18/15 (3)
- RE: Slight hum through speakers that comes and gos - alley -kat 03:05:03 12/19/15 (2)
- RE: Slight hum through speakers that comes and gos - jea48 08:59:38 12/19/15 (1)
- RE: Slight hum through speakers that comes and gos - alley -kat 13:48:07 12/19/15 (0)
- RE: Slight hum through speakers that comes and gos - alley -kat 09:56:10 12/18/15 (0)