The topics discussed so far showed exact conformance with the explanations presented in many other important
and undisputed publications. In the following the observations of transmitted signals with constant frequency
will reveal an aspect, however, that is in contradiction to established interpretations. These can only be solved
when the constant phase velocity of light is considered; this issue is therefore of great relevance for Special
Relativity and the most important part of the examinations presented here. Subsequently it will become clear,
that the assumption of a system at absolute rest in the universe is generally in contradiction to Special Relativity
but when using the principle of constant phase velocity it is just a special case inside the theory without
violating basic experimental results.