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Mike,
Since you are always trying to help others as well..
So here goes:

Attached a 3el with a very large metal roof ..
(just to be sure of worse caste scenario)
The antenna is 5 meters above it.

In this case it is actually "helping" a litlle bit

Of course there are situations where a house/roof etc will have worse behavior
But overall...you can see the take off angle isnt influenced by the house.

So it is fair to say:
...you can model with the heigth provided above ground instead of above the house.
With the restrictions i posted in earlier.

I hope this is helpfull...

Kind regards,

Henry

<blockquote data-quote="Henry HPSD" data-source="post: 476573" data-attributes="member: 2333">Mike,Since you are always trying to help others as well..So here goes: Attached a 3el with a very large metal roof ..(just to be sure of worse caste scenario)The antenna is 5 meters above it.In this case it is actually &quot;helping&quot; a litlle bit <img src="https://cdn.jsdelivr.net/joypixels/assets/8.0/png/unicode/64/1f642.png" class="smilie smilie--emoji" loading="lazy" width="64" height="64" alt=":-)" title="Smile&nbsp; &nbsp; :-)"&nbsp; data-smilie="1"data-shortname=":-)" />Of course there are situations where a house/roof etc will have worse behaviorBut overall...you can see the take off angle isnt influenced by the house.So it is fair to say:&nbsp;...you can model with the heigth provided above ground instead of above the house. With the restrictions i posted in earlier.I hope this is helpfull...Kind regards,Henry</blockquote>

[QUOTE="Henry HPSD, post: 476573, member: 2333"] Mike, Since you are always trying to help others as well.. So here goes: Attached a 3el with a very large metal roof .. (just to be sure of worse caste scenario) The antenna is 5 meters above it. In this case it is actually "helping" a litlle bit :-) Of course there are situations where a house/roof etc will have worse behavior But overall...you can see the take off angle isnt influenced by the house. So it is fair to say: ...you can model with the heigth provided above ground instead of above the house. With the restrictions i posted in earlier. I hope this is helpfull... Kind regards, Henry [/QUOTE]

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