NMEA to Multiplexer to Yeoman Connection

[autopilot]

Thanks Kees

I understand the 42 BT can convert seatalk to NMEA on inputs 4a 4b, s
I was hoping someone might of already gone through the pain to get th
best result for the set-up.

Could I ask Meindert if he agrees this is the way to get the best ou
of the 42 BT?

I've got the feeling your solution is the right way Kees, thank
again.

Regards

Following Kees suggestions I have the yeoman working and have data, bu
I can't send waypoints to the chart plotter from the yeoman, also
don't seem to be able to benefit from data for winchart on my pc

 

[Larry]

Following Kees suggestions I have the yeoman working and have data, but
I can't send waypoints to the chart plotter from the yeoman, also I
don't seem to be able to benefit from data for winchart on my pc?

My Yeoman XL pinout data shows:

Data Spec
NMEA 0183 4800 Baud
8 Data
No parity
1 stop

NMEA 0183-1 As NMEA 0183 (Adds 100 to waypoint number on output)
NMEA 0183-2 As NMEA 0183 (Adds 200 to waypoint number on output)
NMEA 0182 1200 Baud
8 Data (MSB set to 1)
Odd parity
1 stop

Navstar 2000 110 Baud
8 Data
No parity
1 stop

These are the speeds it runs when it is set to the various output data
streams. Make sure your multiplexer and chartplotters are set to the
correct speeds to receive it. Mine wasn't and it took a while. I had to
slow the whole boat's 0183 data streams down to 4800 baud, 8-N-1 just to
get it all to listen to the slow Yeoman data stream to get waypoints. It
won't run 9600 baud, darn it... At 4800 the system seems to be plenty
fast..... Your Yeoman manual shows how to switch output data streams
between these. Ours is set to 0183-1 adding 100 to the waypoint number so
I can see on the chart plotters and computer all waypoints in the 100 range
came from the Yeoman, not the plotters or computer. Reduces (but doesn't
eliminate, of course) confusion....sort of....(c;

Another Yeoman issue is:
Voltages
O/P voltage TTL levels (0-5V)
Sources 50 mA

Don't hook it anyplace else but the multiplexer or the TTL voltage will
suffer driving two loads. It'll only put out 50ma...output.

System:
Raymarine RL70CRC-H radar display/chart plotter
w/Seatalk gyro-compass, WAAS-GPS, (compass normally off NMEA bus)
Garmin 185 chart plotter/sonar (backup GPS normally off NMEA bus)
Noland NMEA 4-port multiplexer
Icom M-602 VHF DSC
Icom M-802 HF-SSB-DSC
B&G "Network" (NMEA 0183) instruments, Pilot, Data display, compass sensor
(better than Raymarine's)
Yeoman XL boards removed from portable foam lap board and mounted to bottom
of mahogany chart table top to energize chart table....firmware upgraded...

Let me know if you want to know what I did to get the Yeoman to work under
the chart table. Works great without the Yeoman's workspace cluttering up
the place...(c;

--
Larry - 3rd mate, engineering
S/V "Lionheart"
(Amel Sharki 41 ketch)
Charleston
It's not mine but I get to play with it when the head is stopped up....(c;

 

[Kees Verruijt]

Following Kees suggestions I have the yeoman working and have data, but
I can't send waypoints to the chart plotter from the yeoman, also I
don't seem to be able to benefit from data for winchart on my pc?

Hi 'autopilot',

I'm haven't tried sending waypoints _to_ the Yeoman; I use mine only to
send waypoints from Yeoman to GPS, does that work? I guess one problem
would be what the name of the waypoint would be, as the Yeoman only has
numeric waypoint ID's, and formatted z9999 as well (eg. 00001, 00002
etc.) if I remember correctly.

I also don't understand what you're trying to accomplish specifically
with Winchart, please elaborate a little. When you do, please also tell
us what _does_ work (e.g. do you get GPS data in Winchart? Then at least
one direction is OK.)

Note that there are many different NMEA sentences; it's like a maze of
twisty passages, all different. You may have to experiment with any and
all equipment's NMEA sentence settings.