Does satellite signal behave like radio signal,radio signal go far doing night time but day time radio signal need more power.
just so you understand .... signals from satellites ARE radio signals, just up in the microwave part of the radio spectrum, around 12 GHz
Because they penetrate the atmosphere at an almost perpendicular ( well.... give or take a bit) they pass through the ionosphere with reasonable ease
The much lower frequency broadcast radio frequencies will reflect off the ionosphere at very low angles during the appropriate times of the day or nite.
It's a reasonably involved topic
So does satellite signal stronger night time than day time?
no, partly because as I mentioned earlier, because of the angle of penetration through the ionosphere and partly because the ionosphere wont support
reflection of those microwave frequencies
As
@duke37 said, the main thing that affects satellite signal propagation is weather conditions
Dave