I originally attached the drain wire to the ground going to the camera and wrapped the drain wire around the wires and the other end to the mic. After that I went drain wire to ground wire on both ends. Still not clear.
Hi Tony, I bought the Hikvision pci-t15f2s camera. Everything worked fine and still does if I just use the mic that is in the camera. The mic is about 50’ feet away and I’m still hearing hissing noise. Yes I did wire it up like that