I have my guitar wired up in a sort of star ground where every component's = ground is tied to a single spot on a pot(the typical configuration basicall= y). I have the bridge grounded which grounds the strings and I have the jac= k hooked up properly.
When I do not touch the guitar it hums and makes a sort of static noise sim= ilar to the sound of an amp and cable when the guitar is not plugged in(or = the sound you hear right when someone plugs in the guitar). When I touch an= y thing grounded it becomes silent.
The only explanation seems to be that the guitar is not grounded properly a= nd when I touch it I am providing a better path to ground.=20
I've measured from the ring plugged of a cable plugged into the guitar to h= ardware on the guitar and got < 1 ohm so it seems the guitar is grounded pr= operly.
Now, I want to say that when I take it outside my house I do not have this = issue.
Unless someone can come up with a good reason why the guitar wiring might b= e wrong(I doubt it since the < 1 ohm thing should be proof enough it is gro= unded) does this mean the house has a wiring issue? If so what could it be?= Could earth ground and neutral being significantly different be enough(may= be a bad transformer or something?)?