Members' Online Book: Weather Reception and Analysis, Chapter 5 of 21

Tips For Receiving GRIBs


In this chapter I’m going to get into the details of how we request and use GRIBs to get the maximum amount of information for the minimum data size and cost, when at sea or in remote areas with no internet.

Update November 2017

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.

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Meet the Author


John was born and brought up in Bermuda and started sailing as a child, racing locally and offshore before turning to cruising. He has sailed over 100,000 miles, most of it on his McCurdy & Rhodes 56, Morgan's Cloud, including eight ocean races to Bermuda, culminating in winning his class twice in the Newport Bermuda Race. He has skippered a series of voyages in the North Atlantic, the majority of which have been to the high latitudes. John has been helping others go voyaging by sharing his experience for twenty years, first in yachting magazines and, for the last 12 years, as co-editor/publisher of AAC.

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