|
You should aim the antenna so it reliably gets the stations you want. From your TV fool plot, 246 degrees magnetic would be a good place to start (west south west). If you have a TV you can safely setup to watch signal strength as you move the antenna that would be helpful.
Proper grounding is important, when in doubt bring in a professional to make sure it is done right. To tell you how you should ground your coax and mast we need to know where the antenna is going, where the ground for your electrical service is, and where you plan to bring the coax into the house.
As a quick summary:
Attach a ground clamp to the mast, making sure it has solid electrical contact with the mast. (If the mast has a ground screw provided, a clamp is not needed).
Run a heavy wire (10 gauge or bigger) from the mast to the buildings electrical service ground. Bond it with a UL approved device such as a split bolt or ground rod-wire clamp.
Install a coax ground block as close to the electrical service entrance as possible. Bond it with a heavy wire to the electrical service ground. Bond it with a UL approved device such as a split bolt or ground rod-wire clamp.
Run coax from the antenna to the coax ground block, make a drip loop.
Run coax from the ground block, making a drip loop, into the house.
If the mast/antenna are very far from the house electrical service ground, you can install a ground rod near the mast/antenna, but it must be bonded to the house electrical service ground with heavy wire.
In my opinion, it is best for the mast ground and the coax ground to be kept separate until the coax is entering the house.
(If an antenna is on a separate structure with a sub panel it is advisable to bring in a professional.)
|