You are apparently just posing random articles without any knowledge of their contents. None of those papers are trying to prove that the long distances are because the beams are bouncing off of the atmosphere, as opposed to any other explanation. There is no challenge to the underlying assumption.
The link that mentions 90 degrees actually says that the antennas in use radiate signals up to 90 degrees. You seem to not be reading any of this. Shameful. I expect better from you in future posts.
So when they talk about elevation angles what do you think they are talking about? What is implied by sending a radio signal up in to the sky and receiving it again on the ground? Have you yet contacted the HAM radio operator on the other site for his Zetetic evidence?
The point of my post was that there is quite clearly a mountain of refereeed scientific papers available at the click of a mouse that you have not gone through and not an allegation of the practice not matching the theory to be found... Except from you... And you have not researched the topic. You seem to think that because there is no evident paper with the abstract, "
Using Super Precise MethodsTM, it can be shown that Radiowaves bounce off of the ionosphere because of the field created by free electrons." that none of these papers say anything substantial about the topics.
Your patronizing tone is completely undone by the fact that you are simply denying the hundreds of thousands of examples that completely agree with theory because it is inconvenient to your worldview but you will accept the shaky reasoning and lack of experimentation by Rowbotham because it is convenient to your world view. You who has cited links to travel advertising as scientific evidence. Epistemologically you are less sophisticated than most grade schoolers.
So shame away. It means nothing coming from you. You are just funny.