BlueAIS Class B, standalone with room to grow

Ben Ellison

Ben Ellison

Panbo editor, publisher & chief bottlewasher from 4/2005 until 8/2018, and now pleased to have Ben Stein as a very able publisher, webmaster, and editing colleague. Please don't regard him as an "expert"; he's getting quite old and thinks that "fadiddling fumble-putz" is a more accurate description.

7 Responses

  1. GPSNavX says:

    Looks great. Sure would like to see an AIS B transponder support WiFi in addition to RS-232/USB. More specifically the ability to create an AdHoc network (like the Digi Connect WI-Sp does). This would allow devices like iPhone and iPad to connect without need for a Mac/PC aboard.

  2. Mike says:

    +1 for GPSNavX’s comment!
    I’d also love to see a Class A non-SOLAS
    done the same way. there’s really no reason
    it would be “hard”.

  3. chriggel says:

    Ben, the signal losses are in my opinion not exaggerated at all. EMA considers using a 6dBi antenna, which normally is a whip of about 3m lenghts. If you use a standard masttop sailboat antenna instead (like the Metz Manta6) it has no gain at all. If you look at the COMAR Splitter AST200, it has a loss of 4dB in receive direction and 0,8dB in transmit direction. This is quite a lot.
    I am running a COMAR SLR200N networked AIS receiver here on my balkony and the Class B Transponders of the two yachts I have access to are hard to detect. This might be mostly related to the 2W transmit power compared to 12W in Class A devices. Especially the yacht with the splitter has a weak signal. Interestingly they themselves can see ships up to 20nm.

  4. Dan Corcoran (b393capt) says:

    Forget AIS, how about offering a VHF radio this way.
    – Eliminate the signal loss from 80 feet of cable.
    – No thick antenna wire to snake thru the mast.

  5. Scott E says:

    $900? Seriously? Cmon manufactures, get these prices down *SIGH* … $500 is the price-point to beat for Class-B AIS transponders (and the only reason it’s even that high, is because that’s what the market will bear right now).

  6. Stein says:

    How does the unit interface to other units? USB? NMEA2000?

  7. Ben Ellison Ben Ellison says:

    Stein, the data standard for AIS is NMEA 0183, which uses RS232 and/or RS422 serial electrical interfaces (they are very similar). The BlueAIS has both interfaces, which is typical of most every AIS receiver and transponder, and means you can hook one to both an MFD and a PC simultaneously. You will need a serial-to-USB converter if your PC doesn’t have a regular serial port.
    Some AIS units have a USB converter built in, and some have an added NMEA 2000 interface, but the BlueAIS has neither.

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