Student or Learner
You can tune in to your favorite station.
Can I drop the preposition to in this case, without a change in meaning?
Tune in a radio station means to try to find the station so that you can hear it correctly i.e there might be difficulties in hearing it properly so you have to change the frequency.
Whereas to tune in to your favourite station simply means to find and listen to it without any problems (it has a more general meaning of to listen to)