Good point it is on the inside roof side of the Chimney. I will do that.
--- In Avid-L2@yahoogroups.com, Dennis Degan <DennyD1@...> wrote:
>
>
> On Sep 17, 2013, at 2:59 AM, John Moore wrote:
>
> > IIRC Dennis had a picture of his roof top antenna on one of his web pictorials so I figure you guys might have some experience with outdoor antennas. I've had a 10 foot mast with my outdoor antenna for almost 20 years without issue. Now I'm replacing with a new antenna as my reception has atrophied. I'm going to install a 20' telescoping mast, 2x10 foot sections. Channel master says anything over 10 feet should have guy wires. I'm using a Chimney strap mount that's been on my existing antenna which has never had guy wires as they haven't been needed. It's at the edge of the house so the standard 3 guy wires isn't possible. Given the first couple of feet of the mast are up against the chimney can I go the full 20 feet? I figure I might keep the mast set to 12 feet for starters and see how the reception is but I'm curious if anyone has any experience in this area. Heck if it falls it will probably hit the neighbors house anyways. ;-(
>
> I offer:
>
> Follow Channel Master's recommendations. You can't afford to risk damage to someone else's house from a falling mast or worse, chimney bricks. Wind load is more powerful than you'd think. If I were you, I'd try to figure out a way to put guy wires on the mast no matter what. I understand your chimney is at the edge of the house, but you might try moving the mast mounts to a point that's closest to the roof side of the chimney. That might give you at least a little room to install guys all around. Guy tie-downs don't have to be equal in distance from the mast in order to work. Any guy system is better than nothing. You don't want your antenna to end up crashing through your neighbor's window one windy dark night!
>
> Dennis Degan, Video Editor-Consultant-Knowledge Bank
> NBC Today Show, New York
>
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