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    Re: ECDIS: What Happens When the GPS Signal Goes Away?
    From: Jeremy C
    Date: 2018 Mar 30, 02:49 -0700

    I am actually trying to solve that problem right now on my ECDIS simulator.

    What I've come up with is creating an object at a DR position.  I then use that DR position as the DR for my star reductions.  Using a calculator/computer, I do the reductions until I have an Zn and intercept for each body.

    Using the range/bearing function of the "radar" plotting aid in the manual navigation menu, I create LOP's based on the star data.  The ECDIS then uses the LOP's to make a running MPP.

    I really wish that they had a celnav engine in there where I could input static data and then just enter in time, Hs, and body to do all of this automatically.


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