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64 Posts
Hi guys, I need some advice.
I get a huge ground loop hum using my ep2500 through my sub rendering the system useless. When I disconnect the coax from the back of the cable box, ground loop hum goes away and I can use my system. I can add a cheater plug to the ep2500, and it works perfectly while the coax IS Connected to the cable box. Remove the cheater plug, no go. Connect the coax, no go. The ep2500 is on a different 20amp outlet as the processor, and cable box, but on the same circuit.
I went outside to check grounding. The cable company has their phone, cable, and internet (I get all 3 services from my cable company) grounded with straps to the conduit of the meter mast. Of course the meter/house is grounded with a long copper solid pipe into the ground.
Is having the phone, cable, and internet grounded to the mast a proper ground? Can I possibly be getting ground loop hum caused by this bad or incorrect grounding method? My cable company wont even come check out their grounding, as they don't ground anything, my electrician grounded everything. I did not hire a electrician to ground their equipment on the outside of my house. I watched them add these ground straps myself.
Any input would be very helpful as I will have to pay an electrician to come check their work and all grounds.
Thanks ahead of time...
Andy
I get a huge ground loop hum using my ep2500 through my sub rendering the system useless. When I disconnect the coax from the back of the cable box, ground loop hum goes away and I can use my system. I can add a cheater plug to the ep2500, and it works perfectly while the coax IS Connected to the cable box. Remove the cheater plug, no go. Connect the coax, no go. The ep2500 is on a different 20amp outlet as the processor, and cable box, but on the same circuit.
I went outside to check grounding. The cable company has their phone, cable, and internet (I get all 3 services from my cable company) grounded with straps to the conduit of the meter mast. Of course the meter/house is grounded with a long copper solid pipe into the ground.
Is having the phone, cable, and internet grounded to the mast a proper ground? Can I possibly be getting ground loop hum caused by this bad or incorrect grounding method? My cable company wont even come check out their grounding, as they don't ground anything, my electrician grounded everything. I did not hire a electrician to ground their equipment on the outside of my house. I watched them add these ground straps myself.
Any input would be very helpful as I will have to pay an electrician to come check their work and all grounds.
Thanks ahead of time...
Andy