You're absolutely right, and I was mistaken about the reporting intervals. I shouldn't have trusted memory. Here's a good white paper which clears it up: https://www.cactusnav.com/files/ClassB_SOTDMA_AIS_White_Paper.pdf
The only way to get wind on a phone or tablet is to mirror, even with the Axiom. That assumes you have wind data showing on the plotter itself.
Ok so getting a new Axiom instead at ~3x the price wouldn't actually give me any better WiFi functionality. Good to know.
There's a lot of different ways, where you want to display it makes a big difference. You could, for instance display the wind data on the plotter and mirror it to your phone/tablet, that doesn't cost a penny. I'm not entirely sure how much data you can display on the e97
It's really a case of priorities.There's a lot of different ways, where you want to display it makes a big difference. You could, for instance display the wind data on the plotter and mirror it to your phone/tablet, that doesn't cost a penny. I'm not entirely sure how much data you can display on the e97
If you don't broadcast too much data one of the cheaper devices, such as Quark, might work OK. They can get overwhelmed with too much data though, such as sending busy AIS data.
@Refueler often recommends an inexpensive multiplexor, can't remember if it does WIFI, i'm sure he'll be along soon to remind us what it is
If you are feeding AIS to the plotter it should go on the STNG network (i think), in which case a STNG or N2K to WIFI device should do the job.
. I've looked it up and it seems to be a match.
Only had time for a glance Nigel, but this looks like it will do the job with N2K, in which case all the OP needs to connect to it is a STNG to N2K cable.
Decca Radar were implementing anti collision radars with true and relative motion of vessels in the early
I stand corrected! 1970's! It's hard to conceive that we actually even used computers in the 1970's, even for those of us who were already conscious during that decade.
We still had valves in a lot of the navigation gear, like the Decca Mk 5, and Mk 12 Navigators, the Mk21 Navigator had just come out and that was all solid state with a nixxy tube to display the channel number. Even the Decca 101 radar still had vacuum state technology in them.
In about 1975 I was on a seismic survey vessel in the North Sea. It had a Transit satellite navigation system - Motorola, I think. It was the size of a filing cabinet, and about once a watch it needed to be rebooted, which entailed keying in a string of hexadecimal numbers using toggle switches. It gave positions accurate to about 50m a few times an hour, depending on when satellites passed. By 1983, Transit systems were available for yachts, in a much smaller (shoe box sized) package, but at a price beyond most yachtspeople's budget. I had the enviable task of visiting the London Boat Show in 1982 to purchase one for use in our field work in Svalbard! That had an averaging function that allowed positions to be determined at about 10m accuracy, provided you were stationary for 24 hours or so.
