satelite parazit
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You can rent a satellite receiver spectrum analyzer. Several satellite equipment dealers have this service.
But moving around the satellite dish will not significantly change the signal levels from the satellites, as long as you have a free line of sight (clear sky).
Elaborating on the above post, your position of the dish can be made to shield it from the unwanted signals by having a building between it and them.
I think you can use even a standard Spectrum Analyzer which can see up to 15GHz. In this way using different spans you can visualize in the same time the level of more channels (and terrestrial interferers).
Anyway the Noise Floor is much better compare to a satellite receiver (you can play with RBW) and also probably easier to get one.
