Hello,
the posts of this forum, especially those related to drones losses, gave me a lot of hints about the controls to be performed and the behaviors to be kept to prevent this from happening. Unfortunately i have some risky conduct, since i usually fly in the mountains, sometimes in deep valleys where satellites reception is limited and rock walls can create the conditions for GPS signal reflections and multipath errors. I have been using GPS in mountain hiking for about fifteen years and, being on the ground, multipath and huge position errors are quite common, fortunately it never happened flying my M2P, but it worries me a lot since luck always runs out.
Here and there in the forum I found some informations about this problem, and I apologize if this post could be redundant, but i would like to verify some considerations to better understand its mechanisms and the chances, if any, to minimize it:
Thank you for your patience and any other suggestions on this subject, for me it's is better to ask how to avoid it today, than to ask why it happened tomorrow.
the posts of this forum, especially those related to drones losses, gave me a lot of hints about the controls to be performed and the behaviors to be kept to prevent this from happening. Unfortunately i have some risky conduct, since i usually fly in the mountains, sometimes in deep valleys where satellites reception is limited and rock walls can create the conditions for GPS signal reflections and multipath errors. I have been using GPS in mountain hiking for about fifteen years and, being on the ground, multipath and huge position errors are quite common, fortunately it never happened flying my M2P, but it worries me a lot since luck always runs out.
Here and there in the forum I found some informations about this problem, and I apologize if this post could be redundant, but i would like to verify some considerations to better understand its mechanisms and the chances, if any, to minimize it:
- Its possibility is inversely proportional to the number of satellites and the quality of the signal, but it could also occur under optimal conditions.
- It happens suddenly, without clues that can predict it.
- It is probably due to the sudden entry of a new satellite with a reflected signal that alters a stable GPS situation.
- In the flight log is visible a sudden jump of the position, which, from that moment until the situation returns to normal, is no longer the real position of the drone.
- flying with no less than 11 satellites at any moment, at least 6 from either system GPS and GLONASS, definitely prevents it from happening.
Thank you for your patience and any other suggestions on this subject, for me it's is better to ask how to avoid it today, than to ask why it happened tomorrow.
