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...placing the antenna and post off of the house in the yard which actually might be the best approach. If I use this method, I assume the antenna wire running from the post to the house should be burried underground in PVC pipe, right?
Finally, since the house is new and grounded thru the bottom of the foundation, can you advise what additional steps I should take regarding the grounding of an antenna or dish? ...
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Conduit may seem like extra work when there are direct bury grades of coax available, but conduit gives you the ability to service an installation in the future. (Oh how I wish there was conduit for the low voltage lines between my house and shop.)
Grounding the antenna system is the same whether your electrical service is grounded to a pipe, driven rod(s) or UFER (concrete-encased electrode). Run a #10 AWG copper wire from the mast to the electrical service ground (you can connect to the wire between the electrical service panel and the ground rod (or it's equivalent). A separate connection 10' or less in length should be run from a grounding block to the electrical service ground. In most cases this is not a large expense (in money or effort).
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