Do not think anyone makes them anymore.
I still have one one my boat, still works fine.
Had it ckd by a radio guy and all went well.
I would replace it but I only boat in lakes and no one uses VHF there.
1995 Maxum 2400 SCR 5.7 A1 G2 LUNA DE MIEL
1988 Bayliner 2455 5.0 IO (sold)
1987 Seaswerl 18ft C. Cabin 4.3 IO(lost in fire)
1976 16ft. Tahiti 2.5 IO (sold)