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Old 11-02-2016, 06:13   #1
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GPS simulator

Hi,
I need to be able to do some measures distances from my boat symbol to an AIS target without having a proper GPS connected.
Is there a way of setting a valid GPS position of my boat in OpenCPN?
I can of course use virtual comports and run a separate program (GPSsim) but is there an easier way?
Br
Gunnar
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Old 11-02-2016, 06:18   #2
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Re: GPS simulator

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Originally Posted by vagspel View Post
Hi,
I need to be able to do some measures distances from my boat symbol to an AIS target without having a proper GPS connected.
Is there a way of setting a valid GPS position of my boat in OpenCPN?
I can of course use virtual comports and run a separate program (GPSsim) but is there an easier way?
Br
Gunnar
Right click on your boat and choose measure (M) , move to the AIS target and click and you will get the distance with the measure function.
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Old 11-02-2016, 06:47   #3
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Re: GPS simulator

Yes that works but I do not get distance in AISlist!
//Gunnar
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Old 11-02-2016, 06:57   #4
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Re: GPS simulator

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Yes that works but I do not get distance in AISlist!
//Gunnar
Where do you get your AIS signals from?

Gerhard
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Old 11-02-2016, 07:01   #5
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Re: GPS simulator

Hi,
I get it from my AIS server that is sending AIS info to MT and VF.
Setup is an True Heading CTRX, one Moxa and a broadband connection. I can not tx my position to them :-)
//Gunnar
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Old 11-02-2016, 08:00   #6
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Re: GPS simulator

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Originally Posted by vagspel View Post
Hi,
I get it from my AIS server that is sending AIS info to MT and VF.
Setup is an True Heading CTRX, one Moxa and a broadband connection. I can not tx my position to them :-)
//Gunnar
If you like to navigate with your boat get a GPS device and a real AIS receiver. OpenCPN is intended for navigation with boats and not as a playground for armchair users.

Gerhard
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Old 11-02-2016, 08:03   #7
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Re: GPS simulator

Thanks Gerhard for your concern :-) No comments on your remarks :-(
Br
Gunnar
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Old 11-02-2016, 08:46   #8
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Re: GPS simulator

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Thanks Gerhard for your concern :-) No comments on your remarks :-(
Br
Gunnar
opencpn is free, open source and you can do whatever you like with it

You could try installing the NMEAconverter program, then put this into it to send every 1 second.

$GPRMC,123519,A,4807.038,N,01131.000,E,022.4,084.4 ,230394,003.1,W

The lat & long are in these numbers
4807.038,N,01131.000,E (48N & 011 E)
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Old 11-02-2016, 09:10   #9
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Re: GPS simulator

Or install the VDR plugin, patch the GPRMC command into a (text) file and point the VDR to it (in case you have no recorded NMEA data stream)
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Old 11-02-2016, 12:22   #10
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Re: GPS simulator

Quote:
Originally Posted by vagspel View Post
Hi,
I need to be able to do some measures distances from my boat symbol to an AIS target without having a proper GPS connected.
Is there a way of setting a valid GPS position of my boat in OpenCPN?
I can of course use virtual comports and run a separate program (GPSsim) but is there an easier way?
Br
Gunnar

Gunnar,

This tool will do what you want I think.

https://github.com/transmitterdan/VDRplayer
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Old 11-02-2016, 13:08   #11
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Re: GPS simulator

Thanks all for the info. I will try this and keep on testing.
The reason for the test is to trim AIS receivers in my system.
AIS Source: 271 om Marine Traffic.
73 de SK6PS Gunnar, Winlink node on the West Coast of Sweden
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