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Darkies Bum

On 2008-06-15 11:03:38 +0100, (Luc
Habert) said:

Mas Dubh :

Chart Nav Pro shows DST info (well, everything it can as it is still on
land - hence no depth as yet). Wind info doesn't show up although CNP
shows data from AIS (separate usb port), GPS info and DST info. Logging
the port shows wind info being received however. Any ideas?

Which wind sentences do you get? I have a similar problem with an old
anemometer whose wind sentences are not understood by the TackTick
repeaters. I use MaxSea on the computer to translate to newer nmea
sentences, and resend them to the TackTicks. If CNP cannot do that, it
should be fairly easy to program the translation.

Unfortunately the craft is some 70 miles away and I wont be over for a
week due to work (pah!) but I get your drift. I will check the
sentences next time. What is interesting is that CPN clocks it's an
"anenometer" that is fitted. Its data console however doesn't produce
the wind dir and speed (there are constraints in CPN on some consoles
if no SOG/COG is avail to calc apparent wind etc. which is
understandable) for say "Ground Wind". I'll look at the translation if
required althought this may be beyond my expertise just now.

Fitted Navman repeater - can I take the output from either the NDC4 to
show all the info? (present limited attempt shows NMEA - "no" report on
Navman screen.

Well, I have experience with the NDC4, but I don't know your navman
repeater. What kind of input does it require? RS232 or nmea? Which speed?
How did you connect it to the NDC4? I think the "ISO OUT 0" works at 38400
baud by default (it is meant to be coupled with "OPTO IN 0" to connect an
RS232 socket, to connect to a PC instead of the USB cable), so if your
repeater is a standard nmea device at 4800 baud, you should plug it on "ISO
OUT 1" (and check its speed with the )

Gosh - a host of stuff to check! Navman 3100 repeater can use navbus or
nmea inputs - I plumped for nmea in this case as I dont have a navbus.
Not sure about baudrate so, yes, there is a possibility that Navman is
missing the data if its firing in at 38.4k. I will check the NDC4
outlet too. I will also check that the 3 wires for nmea inputs are
similar - I only used the first one I came to.

Can one wire more than one pair of listeners to the "ISO OUT 1"?

BTW, I couldn't get the NDC4's filters to work, until I tried to connect it
to the PC with a serial cable instead of USB. This was pretty baffling. Do
you have the same issue?

YES! Is it not bizarre. I did get something on one nmea port once but
never manged to replicate. CNP seems to get some of what it needs
without it but it would help with all this buggering about to be able
to check what the NDC4 is hearing and speaking.
Plenty of food for thought and further research - many thanks.