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  1. CrimsonPhantom

    Apr 9, 2016
    Likes Received:
    The other day I was taking some video of a new ball field close to the house. I had my P4 somewhat low to the ground (The log indicates I was about 18 ft. but I thought I was a little lower) and was trying to get a smooth "running the bases" look. On one pass I was almost to 2nd base and I get the following errors:

    Ultrasonic Systems Error. Land Immediately; Satellite positioning off. Fly with Caution.

    I immediately switched to ATTI mode and lifted the craft out of the park and over to a safe landing area. Before I landed, I placed the P4 back into full Phantom mode
    and everything seemed to work without any issue. I have had 4-5 flights since then without issue including some low to the ground flights.

    It appears to be an isolated incident but I would like to have feedback as to possible causes. It seems like I was kicking up some dust so I wonder if the dust particles in the
    air could have diffused the sound waves creating errors with the return echo.

    Here is my log:
    Phantom Log Viewer - PhantomHelp.com

    The error was received at 15m 12.9s

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