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8/04/2021 3:10 pm  #1

AIS da


looking for a good way to share AIS data between multiple PC's onboard.

The boat has an H5000 system and AIS data is sent to nav PC via USB, looking for a solution to rebroadcast data via wifi to an on-deck tablet. I have tried the "broadcast received data" under the AIS connection channel and it appears to send the data but doesn't properly format the data and won't be properly read by the tablet. The 0183 sentences are sent as a continuous stream without the proper line breaks.

Is there a good stable way to share USB 0183 data from one instance of expedition to another via a wifi network?

Last edited by smokeseattle (8/04/2021 3:11 pm)


8/05/2021 1:42 pm  #2

Re: AIS da

Expedition should send the data exactly as it is received, including the carriage returns and line feeds in the NMEA data stream.

What is the AIS?


8/05/2021 3:08 pm  #3

Re: AIS da

Thanks for the quick reply,

it's a NAIS-500,  NMEA 1083 AIS instrument type with a 38400 Baud rate coming in via COM port (USB), , it looks normal and is received properly on the nav station laptop, but all scattered on the remote tablet.

on the remote tablet, I set up a UDP network connection and match the port and select NMEA 0183 AIS for the instrument type. 

Am I missing anything obvious?

     Thread Starter

8/05/2021 5:13 pm  #4

Re: AIS da

It sounds ok. It may be something network related.

You could send an image of the raw data in Exp and what is being seen on the tablet.

Another option would be a NMEA 2000 wifi option to send the AIS data.

Last edited by Nick (8/05/2021 5:13 pm)


9/29/2021 12:42 pm  #5

Re: AIS da

Finally getting back to sorting the AIS broadcast issue. saved a section of the data from both the nav station PC and the remote tablet for reference.  Could this be a settings issue?

Nav Station PC - Hardwired into AIS reciever. Recieved and displays without issue


















Remote Tablet - AIS data received Via UDP  - Doesnt recieve





Last edited by smokeseattle (9/29/2021 12:42 pm)

     Thread Starter

9/29/2021 5:00 pm  #6

Re: AIS da

The sentences are all mangled with each other ...


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