We now use an Iridium GO! with unlimited data for all weather product downloads including weatherfax, so most of what we do, and recommend, has changed from this post. We have written about our new system in detail starting with this chapter.
That said, the system we detail in this chapter will still be of use to those who decide to stick with an Iridium handset without unlimited data, or an SSB radio with PACTOR modem.