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Old 13-11-2019, 19:56   #1
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Heading line

Hello. I want to thank everybody and just say what a great community this is and what a huge help this forum is. Im wondering if anyone has found an easy way to get a heading line? Im using a surface pro 4 and a cheap usb gps unit (actually I think it was recommended on this forum). Opencpn does everything I need for a backup system but I was curious if there is anyway to get a true heading line? Also anyway to get a swing indicator (rate of turn) rot?

Thanks
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Old 14-11-2019, 01:30   #2
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Re: Heading line

tug...
Heading line:
To get the heading line you need some compass data into OCPN like the NMEA0183 sentences HDT, HDM etc. The GPS course gives a course over ground, COG, and that's not all time the same as the ship's heading and consequently not used for the heading line.

Rate of turn, ROT:
First is this data mostly calculated by a gyro or a satellite -compass.
Seconds is, what I'm aware of, the ROT data for own ship not used by OCPN anywhere. It's though reported by the AIS type A target's detailed information. (AIS type B does not report ROT)
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Old 14-11-2019, 10:20   #3
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Re: Heading line

Yes, thank you Hakan...
I was hoping maybe somebody could make a recommendation or suggestion. I have been reading some about a unit from garmin called "steadycast" that i may try. The garmin is around $125 US dollars so relatively cheap. Reviews seem very positive but I wanted to hear if anyone had any specific input how it may have worked with opencpn. There is another combined gps/heading unit from lowrance called "point 1" that is around the $200 mark. Both are inexpensive options and i am researching for others before i try one. This system will be a backup emergency to rosepoint. Thank you.
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Old 14-11-2019, 11:02   #4
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Re: Heading line

Quote:
Originally Posted by tugandbarge View Post
Yes, thank you Hakan...
I was hoping maybe somebody could make a recommendation or suggestion. I have been reading some about a unit from garmin called "steadycast" that i may try. The garmin is around $125 US dollars so relatively cheap. Reviews seem very positive but I wanted to hear if anyone had any specific input how it may have worked with opencpn. There is another combined gps/heading unit from lowrance called "point 1" that is around the $200 mark. Both are inexpensive options and i am researching for others before i try one. This system will be a backup emergency to rosepoint. Thank you.
Both sensors you mentioned are only for NMEA2000 which OpenCPN cannot use directly. You will need something which translate NMEA2000 to NMEA0183 which is the only data OpenCPN understands.
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Old 14-11-2019, 11:28   #5
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Re: Heading line

Well another hitch!...I thought I had it made, haha. Can you recommend a device to translate or is that an undesirable way to go? thanks
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Old 14-11-2019, 11:53   #6
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Heading line

Here’s a native 0183 heading sensor

https://www.boatersland.com/clpcl-nc...yABEgLt-_D_BwE
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