Originally Posted by tylerSC
Where is the house ground supposedly located, and how do you check to see if it is correctly grounded? I do know some of their outside and garage outlets are not functioning. Can this introduce noise and hurt antenna reception, as well as cause power surges?
The previous post is what you should do for checking the connection to earth. Ground loops are more difficult to find. This is where a 2nd connection is made to earth-ground. It happens for example when an installer mistakenly installs a grounding block for coax and grounds it to an antenna mast or even worse puts another rod in the ground. On the other end, the coax is connected to the ground of the receiver and you now have a grounding loop.
On the outdoor outlets & garage this is most likely caused by a tripped or bad GFI. Code requires all outdoor, garage, bathroom & kitchen outlets to be on GFI circuits. These can be found in the circuit breaker boxes, but more commonly they will be on a power outlet receptacle. The GFI may not necessarily be one of the outside outlets and one of these can control several outlets.
GFI' will have a test and reset button. If the reset button is popped, push it back in. If it doesn't stay in, then you have something wrong with the wiring or the GFI has gone bad. In this case you might have a bit of a treasure hunt to find what is wrong. The above grounding loop issue can cause it.