All ground blocks shall be bonded to the central ground area; i;e, where the power and phone are bonded. Where the central and usually only freakin' ground rod is. I can't count the number of times I have seen that lowly ground block blown to freakin' smithereens and it saved the customers equipment and ours, since they only lease it from us. If you are not using a ground block and bonding to a central ground, you need to be baggin' groceries. Oh yea, you dish guys do it anyway you want. I need all the customers I can get.