Recent content by jbees

  1. J

    Matsutec HP-33A AIS Transponder

    Trying to connect my Matsutec hp-33A to my Garmin GPSMAP 750 without success so far. I've checked all the obvious things...output set to AIS, input of gpsmap set to high speed, output of gps map not connected (so only one talker), ground of AIS bonded to -ve of gpsmap but nothing received. I...
  2. J

    Matsutec HP-33A AIS Transponder: Firmware Update

    Just read your 2014 post with description of link cable connections which I have found very useful, thanks. Do you know if the HP-33A needs the 5v USB supply in addition to its normal 12v connection?
  3. J

    Fouling resistant log transducer

    Years ago we had a B&G Harrier log which had a turbine on a retractable stalk for the water speed transducer. it was very accurate throughout the season. When it died we changed to a series of waterwheel types and a laser type which were all fairly useless as fouling rapidly produces...
  4. J

    Fluid level in a Sestrel hand-bearing compass

    Did you manage to refill and seal your compass OK? There is another thread where someone claims success using silicon rubber and filling with baby oil.
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