Where is the Kanto radio station at?

There's no real-world "Kanto radio station." This is likely a reference to the Kanto region in the Pokémon video game series.

If you're referring to the Pokémon world, there are several radio stations in the Kanto region, but they don't have a specific location. They operate throughout the region, broadcasting from various locations.

Could you please clarify what you're looking for?