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[Paparazzi-devel] something unpredictable

From: Roman Nikitin
Subject: [Paparazzi-devel] something unpredictable
Date: Thu, 14 Apr 2011 20:08:38 +0100

Hallo everyone,


After I did some ground tests today I did identify the following problem. During I was walking across a field, the ap was in manual mode. I mentioned that on the way the control surfaces started to move, than stopped and so several time within next 4-5 minutes. It seems to be strange for me. After I did check the log files, it was clear that the ap was switching between manual  and AUTO1 modes. And it looks like it did happened while GPS signal was to weak.


I am using an Easy Glider by Multiplex and store all the components within a self made whole plastic canopy. The serial modem and GPS module are placed approximately 6-7cm apart and the ap board is between of them. I thought it might be an interference issue, because of the components position or wiring. Another thought would be a bad GPS signal through the plastic canopy or the weather conditions. It was a bit cloudy as I did the tests.


Has anybody an idea what could cause such problem? Maybe you have seen something like this before?






Bristol Institute of Technology

University of the West of England

Aerospace Systems Engineering

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