"Kees Verruijt" wrote in message
...

If it's 10Hz that's as quick as any of the other compasses send out
data, and plenty fast enough. Whether the heading data it reports has
the desired accuracy is up to you.

My shot would be to give it a try first; you can always throw more money
at the problem later.

Note that you should give the fast heading data a separate serial input,
as it's likely to overwhelm other data if you try to share it using a
NMEA multiplexer (this happened to me).

Now I am curious: which type of multiplexer was that?
The reason is ask is this: I have seen this problem too with my
multiplexers, and have therefore added a so called "real-time" option on
the -42 models, which effectively bypasses the internal NMEA buffer for that
channel. This removes the delay on the heading signal that otherwise would
build up, up to 20 seconds.

Raymarine has extensively tested this feature on a boat, moving at 40 knots
and still following a GPS route automatically, where the a fast heading
sensor was used to keep the radar north-up. The GPS, heading sensor and
wind/depth instruments were all coupled through the my multiplexer to an E
series chart plotter.

Meindert

"Meindert Sprang" wrote in message
...
Now I am curious: which type of multiplexer was that?

Aha, I see you bought one of mine back in 2004 :-)
This one does not have the real-time option though....

Meindert

Meindert Sprang wrote:
"Meindert Sprang" wrote in message
...

Now I am curious: which type of multiplexer was that?


Aha, I see you bought one of mine back in 2004 :-)
This one does not have the real-time option though....

Meindert



jesting
Not :-), :-( as I don't have that feature!

Can't you make your multiplexers field upgradable?
/jesting

Actually, I am perfectly happy with the current set-up; everything is
reliable as it is. It just meant an extra day setting up the 3rd serial
port. I was lucky: my mini PC has 4 serial ports, and they can be set to
be RS-422 ports instead of RS-232. The multiplexer is USB, so plenty of
ports.

Your multiplexer still handles the important job of switching from
either GPS + Yeoman to/from Nobeltec sourced autopilot data.

Still, NMEA input port priority makes for less hassle if I had to do it
again and would start with a new multiplexer.

Regards,
Kees

"Kees Verruijt" wrote in message
...
jesting
Not :-), :-( as I don't have that feature!

Can't you make your multiplexers field upgradable?
/jesting

Yes, I can probably. But I'm pretty low on internal memory, so adding a
loader to handle a field upgrade is a challenge, especially the decryption
algorithm takes up valuable space.
So for now, we offer upgrades by letting the customer return the units. This
also gives us the opportunity to swap boards if necessary on very old
multiplexers.

Actually, I am perfectly happy with the current set-up; everything is
reliable as it is. It just meant an extra day setting up the 3rd serial
port. I was lucky: my mini PC has 4 serial ports, and they can be set to
be RS-422 ports instead of RS-232. The multiplexer is USB, so plenty of
ports.

Your multiplexer still handles the important job of switching from
either GPS + Yeoman to/from Nobeltec sourced autopilot data.

Ah, the Auto Mode. That is indeed a greatly valued option :-)

Cheers/groeten,
Meindert

Kees Verruijt wrote in
:

Can't you make your multiplexers field upgradable?
/jesting


Just send it back to Meindert for the "Newsgroup Free Upgrade". Everyone
on the newsgroup is eligible.

Isn't he great?!

--
Larry