a satellite dish is a passive thing, it receives weak signals from far away, mirrors these into a central antenna that picks it up and converts it into an electrical current, which hardly produces any emfs.
that is the official theory.
another view is that these dishes emit "longitudinal" waves that are unmeasurable with meters, although some people experience its detrimental impact or see indirect health effects.
the area straight behind the dish, following the line from the satellite towards the dish and then behind it for quite a distance in a narrow path, is where longitudinal fields are said to hang around and it may be wise not to spend much of your time there, especially during sleep.
this alternative theory usually also states that commonly propagated shielding of the measurable transverse waves is useless while these are not a cause of harm.
i am not so sure of that but do think that shielding may block nourishing natural rays and can be overdone.
outside the es-community, in the world of hard evidence based scientists a similar and possibly related issue is being discussed :
https://vixra.org/pdf/1710.0125v1.pdfthe jargon of fysics ain't easy to follow, but reading it still widens one's horizon somehow a bit even without an anywhere near proper understanding of the matter.