C-band is obsolete in the
United States.
I never did like the 70 MHz down converter, yuck .The FCC mandated a transition away from C-band frequencies to accommodate 5G cellular networks, requiring satellite providers to move their services to different bands like Ku.
SpaceX Starlink constellations use
KU band.
But I must admit, I had a C- band satellite dish. I converted it to a solar cooker works beautifully.