COPIED FROM MY WIFI GRIB Post:
A friend was asking me about my downloading SAT WX GRIB files on-line, directly to my vessel via WIFI
I told him I use http://www.grib.us/ and retrieve not only GRIB files, but huge files, streaming video and SKYPE as well via my COASTAL802™ long range high power WIFI transceiver set-up with 12dBi antenna. It work flawlessly. http://www.nautica802.com/ (contact them directly for a better price than the on-line store which is MSRP) and I use WXtoImg which is free for the entry level application download (which is great) and they offer 2 higher levels, VERY reasonably priced. They are at: http://www.wxtoimg.com/ (Mac compatible)