Radio station from a Grado Statement Cartridge

Hello Guys,

Anyone here owns a Grado Statement Master cartridge?
I'm getting a very noisy Radio signals through this cartridge amplified by the Grado PH1 Phono Stage that already gives a "fffffss" noise at high level but I know this is quite normal through an external phono board with 56 db
I checked the phono board and it doesn't allow Radio noise .. while it's surely the cartridge

Any suggestion?

Thanks in advance