EMI canceling / shielded landing pad?

[WildDoktor]

I'd like to launch/land my M2P from the top of my truck cab (or the hood, or the bed), but whenever I power it up on any of those spots I get a compass error. If I just move it off the truck, the error goes away. I've also found on one construction site that the ground itself had so much interference that I got a compass error.

Is there such thing as a heavy (so I don't need to weight it down with rocks), "shielded" landing pad? I've searched but not found anything yet. Not really worried about keeping it compact; plenty of space in the truck to just keep it in there and haul it around.

Hmmm...if I threw a rubber floor mat on the roof, would that work? (I don't have any rubber floor mats, just carpet, or I would have tried that by now.)

Thoughts? Thanks!

 

[msinger]

How about holding it up in the air and launching from your hand?

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[WildDoktor]

How about holding it up in the air and launching from your hand?

I'm not a big fan of hand launching/landing, I'd rather have a pad that won't fly away, and will eliminate interference.

 

[Felix le Chat]

Any object that has live electrical circuits will produce magnetic fields and a car or truck has multiple live circuits.

There are options to minimize EM interference (twisted pairs/grounded foil sheathing encasing them) but this only works for the object housing the compass... the drone... DJI is well aware of the problem, but doesn't fit shielding to any of its cheaper (consumer-class) products.

Seeing as the launch pad is the car: shielding in the drone wouldn't do anything. Even if you put something directly under the drone, you have still got the rest of the car roof surrounding the 'insulator' which is equally magnetic.

People who own boats have wrestled with this problem since the invention of the compass... and still scratch their heads trying to compensate for deflection (which is the only thing you can do).

The simplest, quickest and cheapest solutions are to: a) move away from the car and launch, or: b) move away from the car and launch from your hand.

 

[Bad Santa]

Set the compass before putting the drone on the truck.

 

[Meta4]

Set the compass before putting the drone on the truck.

Set the compass??
Your drone's compass is already "set" and never needs recalibrating.

 

[tstr14]

I made a landing pad out of a piece of 2'x2' ABS plastic sheeting. I drilled holes in the corners and use a couple of galvanized steel tent spikes (just a long nail with a plastic piece on the head) to hold it in place.

 

[MS Coast]

I'd like to launch/land my M2P from the top of my truck cab (or the hood, or the bed), but whenever I power it up on any of those spots I get a compass error. If I just move it off the truck, the error goes away. I've also found on one construction site that the ground itself had so much interference that I got a compass error.

Is there such thing as a heavy (so I don't need to weight it down with rocks), "shielded" landing pad? I've searched but not found anything yet. Not really worried about keeping it compact; plenty of space in the truck to just keep it in there and haul it around.

Hmmm...if I threw a rubber floor mat on the roof, would that work? (I don't have any rubber floor mats, just carpet, or I would have tried that by now.)

Thoughts? Thanks!

Power up the drone while holding it in your hand away from the truck. Confirm the compass orientation is correct and place the drone on top of the truck. It's the startup that matters.