De or het schoolradio?

The correct Dutch article is:

de schoolradio

How to use schoolradio

the schoolradiode schoolradio
this schoolradiodeze schoolradio
that schoolradiodie schoolradio
our schoolradioonze schoolradio
your schoolradiojouw schoolradio
every schoolradioelke schoolradio
which schoolradio?welke schoolradio?
a big schoolradio / the big schoolradioeen grote schoolradio, de grote schoolradio