Tacktick MN30 True wind from wireless interface??

Hoist

Hoist

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Having a problem linking these 2 up.

I am trying to get true wind onto this Tacktick MN30

The manual says that it takes a signal from the T122 which is reading NMEA data to calculate the TWS.

Has anybody done this before. Info is lacking on google
 
My understanding was that to get true wind it required GPS data to which I do have.

I have put NMEA data into the NMEA 1 port on the interface.

I can’t believe there isn’t a light on it to even say it has power

The rest of my system is ST60 Raymarine
 
True wind speed is relative to the water so needs boat speed. If SOG data is used then that gives ground wind speed. My Tacktick system uses boat speed, not SOG, to calculate true wind speed. There is no option on mine to choose between boat speed and SOG for calculating true wind speed. I reckon that if you simulated a NMEA0183 boat speed message into NMEA 2 then true wind speed would appear. If that worked and you only have boat speed on Seatalk 1 then you would need a Seatalk 1 to NMEA0183 converter.

All Tacktick devices are designed to be ultra low power consumption including the interface boxes. Even a power on LED is wasteful.
 
I have a Tacktick setup and have NM30 displays. To get wind data I have the T120 Wind Transmitter which connects directly to the NM30. To get the true wind data while moving I also have the display connected to the T121 hull transmitter which had the speed/log transducer and compass T909 connected to it.
 
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For Tacktick to show True Wind Speed (TWS), you definitely need STW (speed through water), not GPS position or speed (SOG).

STW normally from paddlewheel, though one could convert SOG to STW.

Does your Raymarine/Seatalk system have a STW (paddlewheel) transducer?
 
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Managed to download the manual and thats literally all it says about true wind.

I have located a seatalk junction close to where I want to put the Wireless interface

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I am just trying to locate if there are anymore as I have the old seatalk system and a much newer raymarine autopilot and they are all talking to each other perfectly.

As Angus has highlighted if my plotter etc can see STW then its in the seatalk system and I can convert to nmea 0183 for the interface to work
 
Based on the Tacktick info you just posted, IT SEEMS you will not be able to get the Tacktick to calculate true wind without a Tacktick speedo. (Though the last paragraph seems to contradict this!)

If so, you will need to use other system to take Tactick apparent wind and use STW or SOG to calculate true wind. (OpenCPN and its plugins can do this.)
 
BCsailor said:
Based on the Tacktick info you just posted, IT SEEMS you will not be able to get the Tacktick to calculate true wind without a Tacktick speedo. (Though the last paragraph seems to contradict this!)

If so, you will need to use other system to take Tactick apparent wind and use STW or SOG to calculate true wind. (OpenCPN and its plugins can do this.)
Click to expand...

For the Tacktick display in picture 1 to display true wind speed it needs to receive speed through water on its Micronet wireless connection. Speed through water can be put onto Micronet either by a Tacktick log transducer connected via a Tacktick hull transmitter, which the OP does not appear to have, or a speed through water NMEA0183 sentence input to the Tacktick wireless interface shown in picture 2, which has a spare input port labelled NMEA 2.

The OP has speed through water on Seatalk 1, so the easiest solution is a Seatalk 1 to NMEA0183 converter and use the 2nd option above.
 
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