I posted these comments in an earlier post above in this thread, but to make a point about why I ever attempted to add the trombone tuner to the model some time back. So, I think I should explain further.
The point was to see if adding the physical matching device to the model would make a difference. In the past Jay, the developer of the antenna and his self proclaimed sidekick Master Chief, both use to express the superior benefits for the trombone tuner, and that raising the radiator well above the rest of the antenna produced better working results.
So, I wanted to see if they were right and would a model show any difference compared to other 5/8 wave. Lots of folks back then and even now proclaim a 5/8 wave is a 5/8 wave and nothing more...when compared at equal heights above ground.
Well I haven't got my model to produce a perfect match yet, like DB has, but it is close at 1.355 SWR compared to the antenna without any matching device added...and such a model for me shows 18.885 SWR. That is a lot of difference, so the matcher does work.
Below are the two Source Data reports for my models.
[ATTACH=full]19018[/ATTACH]
[ATTACH=full]19019[/ATTACH]
So, in case you missed this important point...you can get an idea here...exactly what the difference to including or not...a matcher with your modeling.
How say you?
