Understanding Grounded Electricity

[Averagesupernova]

Averagesupernova,

What do you mean by "component?" Your argument is precisely the reason the two grounds would be isolated with an inductor or other network. The two grounds may in fact be somewhat different. While you want the two grounds to remain at nearly the same potential, you want your current to flow through only one.

- Warren

Last I checked an inductor has a relatively low resistance to DC. But NOT likely low enough to pass the kind of current I am referring to without being destroyed. As for a blocking capacitor as part of the network? Obviously megashawns system is able to pass DC through the antenna lead shield or it wouldn't run at all. I've been in the automotive electronics biz and I've seen this sort of thing happen alot. When it comes to connecting grounds that go to several different places you either design the connection so it can carry the type of current I am referring to or you will have lots of defective products due to a failure elsewhere on the vehicle. Most likely megashawn is referring to an aftermarket product and we all know what sort of people CAN end up installing an aftermarket car stereo.

 

[megashawn]

so what sort of person are you calling me? The stereo itself is aftermarket, the antennas are generally factory installed.

I take back my earlier apology. I regret having ever clicked on this topic.

 

[Averagesupernova]

No no no megashawn. I am NOT calling you the type of person that you are thinking of. But we all know a lot of car stereos are installed by people that shouldn't be doing it. If the gear is to stand up it needs to be built to take abuse. We all know that there are morons in every aspect of life. Car audio is no exception. However, it doesn't mean that it is exclusively made up of morons.