1) The ground of the house : it should be one point in your house otherwise it would cause problem
- different level of ground - it cause unstable working of your device.
2) If you install TV ground like below
- your electrical ground should be connected with the TV ground
3) However, It is fact that you do not need another ground rod if you have electrical ground rod.
--> if you check the Electrical Ground line and TV Antenna = the resistance is almost 0 (zero)
it means the TV Antenna ground and an electrical ground are already connected
in the TV device in self .
