I put in a Furuno
Navtex last year.
Found it to be quite useful in my coastal Florida
The frequency band is more medium than VHF
and it don't need no line-of-sight.
It cost nothing to get all the weather ya want. (No subscription)
The manufactor mentions a 400 NM range, and that is probably doable, but I have only seen 260 NM as that is was as far I went from Florida
last year. (Exuma Islands)
As ya get further away the "error rate" increases, but still plenty good from what I have seen on my unit.
The cost was just under $400.00 US including antenna
and wires, etc.