Thread: Nmea /dsc
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Bjarke M. Christensen Bjarke M. Christensen is offline
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First recorded activity by BoatBanter: Jan 2007
Posts: 52
Default Nmea /dsc

Well basicly that the 292 (opposite the old 182) only have one NMEA/Garmin
port, which require one constantly to switch between NMEA mode (for normal
operation) and Garmin mode for up and downloading of routers/waypoints and
tracks to mapsource or whatever application your are using for that.

I'm in the process of evaluating to use a brookhouse nmea hub to connect my
Garm292, pc, seatalk (wind, speed, depth), vhf and a new AIS blackbox, I'd
like to get AIS information on the Garm292 apart from ofcause to be able to
control the Gram292 from the PC for up/downloading.

Could be nice if I could keep the NMEA port on NMEA and do the Garmin stuff
to the PC via the CANnet interface ... But the other way around might do as
well ??

Bjarke



"kirwoodd" wrote in message
ups.com...

Bjarke,
whats the actual problem that you are trying to solve? Cant you just
use the nmea output and fan it out? As I recall an nmea output port
can handle four devices, If you already have four listeners, you can
use something like the device that larry uses (
http://www.nolandengineering.com/nm42u.php )

is there something that the can port supports that the older style nmea
doesnt?


On Jan 6, 4:26 pm, "Bjarke M. Christensen"
bjarkeNG@grevestrand_punktum_danmark wrote:
Without getting to the extreme "cyber-space-boat" do you know of a cheap
device/gateway that in some way make the CAN-net interface on my Gramin
292
usefull for communicating either with the brookhouse nmea hub, seatalk or
my
PC ??

Do anyone know if the Garm292 can communicate on the nmea/garmin port and
the CAN-net at the same time. Don't seem to find much CAN information in
the
manual ....

Bjarke

"Larry" wrote in
.253...



"kirwoodd" wrote in news:1168100467.974287.297950@
51g2000cwl.googlegroups.com:


Yeah, it would be great to go to best buy and get an ethernet hub for
the boat. It would rely on 120vac (but that is fixable) and it would
allow me runs up to 300', repeaters, and routing. JUST what I need on
a
43' boat.


Hmm...all my little routers/hubs/wifi routers run on 12VDC from the
little bricks plugged into the UPS. Converting them to the boat means
plugging in a cigarette lighter cord.


One must admit it would be really cool to be able to attach your wifi-
connected laptop to whatever instrument is on the network...or all of
them at once...without the wires, whereever you happen to be. I have
Lionheart so configured on NMEA 0183 with a Webfoot plugged into the
RS-
232C computer port on the Noland multiplexer. Webfoot converts serial
to
TCP/IP with full DHCP addressing. It's plugged into a Netgear wifi
router. "Virtual Serial Port" software comes with Webfoot so you can
address it over any network. All you need is its IP address...even
from
the beach! The Cap'n, our nav software, connects to COM3 (the VSP fake
serial port) and doesn't know the difference. I can connect up to 255
computers to the Webfoot's IP and have had 4 connected simultaneously
it
feeds data to. Of course, it's best if you don't have more than one
Cap'n sending back data to the network because The Cap'ns can't talk to
each other over the wifi as they don't know about the others....(c;


When I first got it running I took the laptop up to a beanbag under the
genoa and steered from there. Crabber toilet floats are easier to see
without the sails in the way. Coming about is more fun. You secure
your
beer so it won't spill, click the new waypoint and hollar "Coming
about!" back aft to the winch slaves tending sails. Now retrimmed on
the
new tack, your beer is waiting....(c;


Ethernet is AWESOME when you have LOTS of hosts that you want/need to
address individually. Note how well multicast has done. If they used
ethernet for the NMEA spec, it would be a total horror show. AND all
of
your devices would cost more as the manufacturers would have to do
MORE
software engineering to compensate for ethernets shortcomings for this
applicaiton. Dont get me wrong, NMEA is totally bjorked, but using
ethernet would NOT have been the answer. If manufacturers want to use
ethernet for their proprietary data transfers, thats cool, but why
make
my temp sensor use a heavy ethernet interface?


I'm sitting here talking to a friend on my wifi Skype phone from
Netgear:
http://www.netgear.com/Products/Comm...pe/SPH101.aspx
He's in Moncton, NB. It's free.


I can't help, thinking about the little wifi transceiver in this phone,
how wonderful it would be for BOATERS, not dealers, if you simply
plugged
your new GPS/Plotter into 12VDC and it attached itself to the boat's
wifi
router, plug n play, announcing to all the other wifi instruments,
controllers, plotters, etc., that it was new and here and at
192.168.1.35
for a connection. Anyone needing GPS data would simply connect to one
of
its 65,535 ports and start sucking on that tit for GPS data. At
802.11g's 108Mbps, of course, there'd be zero waiting, no matter how
many
wifi gadgets were on the boat isolated from the rest of the wifi world.


We'd simply eliminate ALL data wires radiating like hell all over the
boat to screw up the HF receiver and BE screwed up by the HF
transmitter...(c;


I for one welcome our new CAN bearing overlords and am looking forward
to their benelovent, data sharing rule.


Oh, me, too! It's always fun to watch the NMEA action and see what the
next round of proprietary nonsense comes out trying to stop me from
connecting a Garmin gadget to a Raymarine gadget to a B&G gadget to a
Furuno gadget.


Oh, by the way....with wifi, the analog radar display would be STREAMED
as one of the compressed video streams to anyone who wanted to connect
to
it. You can watch the radar from your bunk on any browser from the
radar's own webpage interface....same as the masthead steerable webcam
looking over the horizon on its webpage in realtime. You can even show
them to the nice folks back home if you connect the Ethernet on the
satellite phone to our boat's router...at great expense, of course.
Just
plug the webcam up top into 12V and it'll logon to the DHCP same as
everyone else.


Yep, CAN is THE way to go!- Hide quoted text -- Show quoted text -