KEEP THE ELECTRONICS!

The speed wheel is probably full of the last seasons marine growth.  A
tooth brush should straighten that out.

Yes you can get the autohelm to steer to the wind.  On my symrad unit I
have to configure it for one or the other.  Not too hard but certainly not
on the fly.  Steering to the wind is conditional on having a wind direction
input...possibly from those instruments you were considering tearing out.

Josh
On Jan 13, 2014 10:09 PM, "Curtis" <cpt.b...@gmail.com> wrote:

> Rich,
>
> I have read and continue to read the manuals for all this equipment. I
> note a bit of frustration with regards’ to my lack of understanding of this
> equipment. I have only owned my C&C30 for a couple of years now, The boat
> came with a lot of st50 auto-helm equipment
>
>
>
> 1) Tri-data
>
> 2) VMG
>
> 3) ST4000
>
> 4) Wind
>
> 5) Multi
>
> 6) Speed Trim
>
> 7) NAV-Data
>
> 8) I also have a 36” pole with a wind feather on the top of it? Z159
>
>
>
> Transducers’= (wind speed true/app Direction)
>
> (Water speed paddle wheel)
>
> (Depth temp)
>
> (Wind angle? Z159)
>
> (Fluxgate)
>
>
>
> Everything seams to power up, but the paddlewheel will not turn freely.
> And there is no continuity in the cable? So, it’s fair to say the speed
> trans is no good.
>
> The fluxgate I was able to swing in as the “Manual” instructed. I’m able
> to set the clutch in place and hold the boat at the heading I point it at
> using the st4000 so I know that works. But reading the above makes sense
> that it would be independent of the Garmin GPS. However I was told that’s
> what makes the system so cool is It would follow a courts set by gps. If I
> read Schiller’s post correctly I could set it to receive the wind vane so I
> might steer a wind angle? Now that would be progress.
>
>
>
> Moving forward I will hook back up the Fluxgate compass and reconsider
> what else?
>
>
>
> Thanks again its just so much to take in for someone that has never been
> involved in marine electronics and new to boat ownership as well.
>
> I will get it. It just may take me more time than I was hoping for.
>
> Thanks again for all the advice and help. With out you guys I would
> flounder for months on this stuff.  Maybe I should just cut it all loose
> and e-bay it. Just use the Garmin and the depth sounder. It would be a way
> to watch both ends of the boat in close anchorages.
>
> Cheers, Curtis
>
>
> On Mon, Jan 13, 2014 at 4:26 PM, Rich Knowles <r...@sailpower.ca> wrote:
>
>> Curtis:
>>
>> The fluxgate compass is the primary source of heading information for the
>> autopilot head and should *not* be disconnected.
>>
>> When you push the "AUTO" button, the course computer locks on to the
>> compass heading the boat is on and develops internal correcting signals as
>> the boat yaws to either side of the original heading and uses those
>> cross-track error signals to drive the wheel and hold the course steady.
>> Once properly set up, the course holding abilities of the ST4000 are quite
>> good and you should be on a constant course in the direction originally
>> set. This way of using the ST4000 is the standard way of operating. It's
>> just fine for relatively short legs but, as it only uses the boat's heading
>> as a reference, it cannot compensate for current or leeway of the boat. In
>> other words, you could be doing 220 deg for several hours and be miles of
>> your intended destination if a cross current caused by tide has pushed you
>> away from the rhumb line.
>>
>> To avoid getting pushed off course by factors that the fluxgate compass
>> cannot measure or compensate for, an external source of cross-track error
>> signals is needed that uses the final destination point as the reference
>> from which to calculate whether course correction is needed.
>>
>> When you have a "GO TO" destination set up and activated on the GPS unit,
>> the GPS will develop off course signals that can be used by the auto helm
>> computer to steer the boat to the destination. That information is
>> delivered to the ST4000 via the NMEA signals.
>>
>> Pardon me if you are aware of this already. I strongly recommend reading
>> the manuals and, if there are terms that are unclear, Google them up.
>>
>> Hook that compass up and RTFM!
>>
>> Rich Knowles
>> INDIGO LF38
>> Halifax, NS.
>>
>>
>>
>>
>>
>> On Jan 13, 2014, at 4:26 PM, Curtis <cpt.b...@gmail.com> wrote:
>>
>> I have a flux gate compass I disconnected it from the head because I
>> thought the auto-pilot head would now get its heading from the GPS unit?
>>
>> So I will take some photos and show you what I have.
>>
>> How will I ever nap a nap in???
>>
>>
>> On Mon, Jan 13, 2014 at 2:19 PM, Michael Brown <m...@tkg.ca> wrote:
>>
>>>
>>>
>>> >Though something to consider is that the 0183 standard is for a total
>>> of 4
>>> >wires to send and recieve.  RX+GND and TX+GND.  I didn't see where you
>>> >mentioned all those wires...sounded like too few.
>>>
>>>
>>> The ST4000 control head is NMEA IN only, two wires marks - +.
>>>
>>>
>>> >
>>> > So now, If I understand you correctly. I first have to create a route
>>> then to
>>> > start navigating a course or to a way-point.  That should start
>>> > broadcasting a course to steer signal. then I in-gauge the st4000  by
>>> > pressing the +10 and -10 at the same time and it should start taking
>>> > direction from the Garmin?
>>> > does this sound correct?
>>> >
>>>
>>>
>>> With NEMA to the ST4000 it depends on what is being sent. Autohelm
>>> describes two
>>> scenarios,  automatic acquisition and manual acquisition.
>>>
>>> Automatic - both cross track error and bearing to waypoint are sent
>>> Manual - only cross track error is sent
>>>
>>> With automatic get everything engaged and press +10 and -10 together.
>>> The manual
>>> requires that you get on course withing 5 degrees of the bearing to the
>>> waypoint and
>>> cross track less than 0.1 nm, then press +10 and -10 together.
>>>
>>> My guess is, and strictly a guess, is that the ST4000 uses its own
>>> fluxgate compass
>>> for navigation and takes some error correction from NEMA for cross track.
>>>
>>>
>>>
>>>
>>> >I know it has probably been done by others but I am not sure that I
>>> would
>>> >ever let my ST 4000 plus steer a course unattended based on transfer
>>> data
>>> >from my chart plotter.
>>>
>>>
>>> I wonder if that was what Autohelm was thinking, they seem to use the
>>> fluxgate compass.
>>>
>>>
>>> > Curt ? it?s been my experience that pretty much NO equipment uses the
>>> same color wire for the same thing, even among equipment from the same
>>> manufacturer.
>>>
>>> >You need to connect the NMEA0183 output wires from the GPS to the
>>> NMEA0183 input wires on the > autopilot; TX+ and TX- on the Garmin to RX+
>>> and RX- on the Raymarine.
>>>
>>> >I can guarantee that the chances of any two of these wires having
>>> common colors is about zero.
>>>
>>>
>>> Supposedly the + is Red and - is Blue, however Autohelm agrees with you.
>>> They are marked + and - only.
>>>
>>>
>>> Michael Brown
>>> Windburn
>>> C&C 30-1
>>>
>>>
>>> _______________________________________________
>>> This List is provided by the C&C Photo Album
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>>>
>>>
>>
>>
>> --
>>
>> *At sea, I learned how little a person needs, not how much. -  Robin Lee
>> Graham*
>>
>>  _______________________________________________
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>>
>>
>> _______________________________________________
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>>
>
>
> --
>
> *At sea, I learned how little a person needs, not how much. -  Robin Lee
> Graham*
>
>
> _______________________________________________
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