Older Navtex NX-300 antenna needed

I am looking for the correct antenna to fit a older Navtex NX-300 unit. I have connected a GPS to the wiring harness input so I already have GPS but I need weather text. The manuals all say use the NX-3H-D or the hard to find Furuno 000-059-204 antenna, but now I see the NX-3H-H is out there, so I'm a little confused. Please help.

The NX300 is still a current product.
The antenna you want is the NX3H H-Field Active Antenna with 10 Meter Cable.

That is what we currently supply.

http://www.furunousa.com/Products/Produ ... gory=Parts
Any Furuno dealer should be able to get it for you.

Here is a link to the FurunoUSA dealer locator
http://www.furunousa.com/Support/DealerLocator.aspx

Thank you for clearing that up.