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Thank you all for your help. We really appreciate your time, especially my husband and my kids (who are in cartoon withdrawals right now).
I think 20 ft was just an arbitrary number he decided on based upon the lengths of pipe he is able to get from his shop. He's going to put it up at 30 ft this weekend and see if that does it. If not, we will try the preamp.
Is there any kind of info you can give us on securing a mast that is a certain height? I.E. At what height does there need to be some additional support and what's the best way to give that? His plan is to have the mast secured to the house from the ground up. Our roofline is about 12 up, so there would be an additional 18 ft of mast freestanding.
Also one more question concerning reception. He hasn't grounded the antenna yet, will do that this weekend also. I've read that helps reception. Does it seem to make a noticible difference?
Thanks again.
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