Again, many thanks for enlightening me.
Must admit to spending a fair amount of yesterday looking at antenna designs, not sure why cause I still don't understand too much of it, and in my instance not sure of what type I should really be concentrating on given my almost sea level status?
There seem to be a few different web sites around all showing similar info. Looking in Vessel Finder for instance why for a ship such as QM2 would she have only had a last known position of Jan 29 and headed towards Mauritius? I'm guessing it means there is no AIS station in that area, and that she will be due in Fremantle in a day or so and that her position will again be updated?
Too many questions I know. :-)