If that were true, why would anyone in their right mind ever install a telephone cable that way? Common mode never cancels all noise, because the balance is never that perfect, so if what you say is true every telco cable in the country is installed
*wrong* and the noise in the cable could be reduced simply by going around and cutting that ground connect.Has it yet occurred to you that you *can't* be right?
And nobody in the entire telecom industry knows as much as you do about it, so they *all* do it wrong???
Or, just perhaps... you don't understand it?
Actually 4 load resistors. The Rgrnd is also part of the load on each signal source. We could label them as Rl1, Rl2, Rl3 and Rlg just as well.
Wrong. A single low impedance connection to ground for each equipment is the key.
And that is *exactly* where you get a common path for ground returns, which is what causes a ground loop.
Which works fine... as long as all of these cables are very short. And by the same token, it does not work so well when there are 10 meter cables or when there is more than one amplifier or other grounded device.
So now everything is going to have to be battery powered.
You're grasping...
Connect it to the equipment! One end to the base of the microphone, and the other end to whatever it is plugged into.
Remember... two signals and a common path...
Those of use who actually have worked with mic cables have a different experience than you.
There is a ground loop at each end. The ground lead from the box carries signals both from the box and from the cable shield.
That is true at both ends, therefore there are two ground loops.
AC power and audio.
Just as you do? Of course that is simply because you understand just about as much of this as a little girl with an iPod would be expected to understand, so the comparison does seem apt. Thank you for point it out.