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[QUOTE=&quot;Tower Guy, post: 45230, member: 4785&quot;]Tilting an antenna is advantageous in some situations.&nbsp; Your suggestion of elements &quot;blinding&quot; each other is not the reason.&nbsp; Elements interact with each other due to mutual coupling.&nbsp; The effect is what causes pattern shaping and hence gain.In my opinion tilting an antenna has three effects.1.&nbsp; When there is nearby terrain the signal is actually arriving at an angle from the top of the nearby hill.2.&nbsp; Tilting the antenna lowers the antenna noise temperature ever so slightly.3.&nbsp; When tilted upwards the horizontal beamwidth of the antenna at the horizon is reduced.&nbsp; If there is multipath, but extra signal strength, the result could be a better S/N than the signal from a horizontally aimed antenna.That said, if you want tilting, there is a far better way to get elevated signals from an antenna.&nbsp; An antenna a few feet off the ground reflects such that the main beam is tilted upwards.&nbsp; The key is to find an open foreground for the antenna and determine the optimum height for your specific location.Such ground gain is as much as 6 db over flat ground and can be even higher if slopes and swales happen to be an advantageous shape.In one case I helped a friend get over-the-mountain reception using his steel pool deck as an artificial ground.&nbsp; The antenna was mounted on a fence post 3' above the deck.Here's another example of antennas located unusually close to the ground:<a href="http://www.hdtvexpert.com/pages_c/OutToTheFringe.html">Updates From The Field :: Out to the DTV Fringe</a>In this case there is a downslope in front of the antennas and a mountain about a half mile away.[/QUOTE]

[QUOTE="Tower Guy, post: 45230, member: 4785"]Tilting an antenna is advantageous in some situations. Your suggestion of elements "blinding" each other is not the reason. Elements interact with each other due to mutual coupling. The effect is what causes pattern shaping and hence gain. In my opinion tilting an antenna has three effects. 1. When there is nearby terrain the signal is actually arriving at an angle from the top of the nearby hill. 2. Tilting the antenna lowers the antenna noise temperature ever so slightly. 3. When tilted upwards the horizontal beamwidth of the antenna at the horizon is reduced. If there is multipath, but extra signal strength, the result could be a better S/N than the signal from a horizontally aimed antenna. That said, if you want tilting, there is a far better way to get elevated signals from an antenna. An antenna a few feet off the ground reflects such that the main beam is tilted upwards. The key is to find an open foreground for the antenna and determine the optimum height for your specific location. Such ground gain is as much as 6 db over flat ground and can be even higher if slopes and swales happen to be an advantageous shape. In one case I helped a friend get over-the-mountain reception using his steel pool deck as an artificial ground. The antenna was mounted on a fence post 3' above the deck. Here's another example of antennas located unusually close to the ground: [url=http://www.hdtvexpert.com/pages_c/OutToTheFringe.html]Updates From The Field :: Out to the DTV Fringe[/url] In this case there is a downslope in front of the antennas and a mountain about a half mile away.[/QUOTE]

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