SDR AIS available in OpenPlotter 2

[Sailoog]

To get AIS data you only need to select a device and set the PPM and the UDP port values. All options in "calibration" section are just to find out the PPM of your device.

Short calibration manual

• Select a device
  
• Click "Initial PPM" to get an approach to your ppm value. The longer you let the program calculate the better result you will get. If you run the program for hours you will get almost the final ppm but if you do not have time just wait for the value to stabilize.
  
• Close the program and put the result into the PPM field.
  
• Select the GSM band for your zone and try to get the strongest channel clicking "Get Channel".
     
  

• Put the strongest channel into "Channel" field and press "Get PPM". Put the result into the PPM field again rounding the value without decimals and you are done.
  
• Provide a UDP port to send AIS data to (default 10110). A Signal K connection will be created for that UDP port.
  

Tips

PPM values have a tolerance of +/-7.
PPM value can be negative.
If you do not find the correct PPM you will not get AIS data.
The PPM value will change with temperature so let the device work for 30 minutes before calibrating.
Some devices are already calibrated (PPM near 0) even with different temperatures.