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Thread: q: ocean <-> land direct communication

  1. #1

    Join Date
    Dec 2014
    Croatia - Adriatic sea

    Default q: ocean <-> land direct communication


    please help.
    don't know where to post and how to formulate question.

    so, in general, how to:
    -send/receive from 30 feet grp sloop sail boat from any part of world (basiclly open sea) to croatia (europe), daily (or weekly in bad conditions) 1 .jpg .tiff etc. photo file max 200kb from camera or sd card, position, and possibility to write text?
    -which wave lenght, equipment etc?
    -should be cheap, small, bulletproof (joke ) reliable, as possible factory made components. have experience in diy but would like to avoid to make boards, station etc because of limitations to repair on ocean.

    20m wavelength station and raspberry? would it work?

    thank a lot!

  2. #2

    Join Date
    May 2014
    Whaley Bridge, United Kingdom


    The standard answer, and one most cruising boats use is to use a Pactor3 modem over HF with WinLink or SailMail. I am lucky enough to have an M801 and Pactor on my 39 foot ketch.

    But you could try using other HF protocols that are cheaper like Winmor.

    For position reporting you can try APRS over HF, or you if you have a Pactor secure packet APRS.

    Also I have experimented with a very QRP WSPR transmitter (a QRP labs U3) for one way position reports. Mine is in a waterproof box and is very rugged.

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