Meeting with a high voltage wire. Compass error.

[sam_drango]

Today, before takeoff, I did not look up, at the top was a high-voltage wire. The drone caught on this wire and hung (caught on a beam), I turned off the motors and the drone began to fall, I caught my drone. No damage (small scratches). But now both compasses are in the red zone and calibration does not help. The compass error pops up and the atti mode turns on. Help me solve the problem.

 

[Deleted member 93449]

Do the motors still turn on in spite of the calibration errors?

 

[sar104]

Today, before takeoff, I did not look up, at the top was a high-voltage wire. The drone caught on this wire and hung (caught on a beam), I turned off the motors and the drone began to fall, I caught my drone. No damage (small scratches). But now both compasses are in the red zone and calibration does not help. The compass error pops up and the atti mode turns on. Help me solve the problem.

Depending on the type of transmission line, it's possible that the compasses and/or other aircraft components have become magnetized, so if they are reporting in the red then the next step is to try demagnetizing the aircraft.

 

[Magilla Gorilla]

Worth a try!

Amazon.com: cfixer

You will also need to order the correct cable for your bird.

 

[DanMan32]

$70 and they don't even provide a power supply? That's a ripoff.

 

[Thomas B]

Worth a try!

Amazon.com: cfixer

You will also need to order the correct cable for your bird.

I have one. It works great! Useful on more than my drone also.

 

[sam_drango]

Do the motors still turn on in spite of the calibration errors?

Yes. Engines start on the second attempt

 

[sam_drango]

Depending on the type of transmission line, it's possible that the compasses and/or other aircraft components have become magnetized, so if they are reporting in the red then the next step is to try demagnetizing the aircraft.

Is this the only way to solve my problem? Can I replace the compasses? Or how to properly and cheaply demagnetize?

 

[sam_drango]

Worth a try!

Amazon.com: cfixer

You will also need to order the correct cable for your bird.

Thank. I read a lot of branches about this device. Is there a way to demagnetize without buying this device?

 

[sam_drango]

$70 and they don't even provide a power supply? That's a ripoff.

I agree. A little expensive. On ebay I see the price of this device is 62 dollars

 

[sam_drango]

I have one. It works great! Useful on more than my drone also.

Did this device help you? Do you use it often?

 

[Thomas B]

Did this device help you? Do you use it often?

Yes it cleared a magnetization from my MPP in seconds. Most use is on other things around the house. Not needed often.

 

[DanMan32]

If you can find a picture tube degausser from the days when TVs were commonly repaired, you can use that. You can also use a bulk tape eraser. Just be sure you move the degausser/eraser a distance away from the AC before turning off, or else you'll magnetize the AC.

It was neat watching a TV picture go splotchy as you used the degausser, and stay that way if you turned off too close to the tube.

 

[BossBob]

I still had a tape head demagnetiser from my cassette playing days so I used that. Worked a treat!

 

[Mike4884]

Sam why take apart the ac and try to replace the compass....seems like more of a headache....get the degausser and try that

 

[DanMan32]

After all, it might not be the compass itself that's magnetized.

 

[sam_drango]

Yes it cleared a magnetization from my MPP in seconds. Most use is on other things around the house. Not needed often.

Can I use often? Does it not harm the drone?

 

[sam_drango]

If you can find a picture tube degausser from the days when TVs were commonly repaired, you can use that. You can also use a bulk tape eraser. Just be sure you move the degausser/eraser a distance away from the AC before turning off, or else you'll magnetize the AC.

It was neat watching a TV picture go splotchy as you used the degausser, and stay that way if you turned off too close to the tube.

My grandfather said that he has a device in the garage for demagnetizing kinoscopes. Tomorrow I’ll go watch and try

 

[sam_drango]

I still had a tape head demagnetiser from my cassette playing days so I used that. Worked a treat!

What does this device look like?

 

[sam_drango]

Sam why take apart the ac and try to replace the compass....seems like more of a headache....get the degausser and try that

Thank. Tomorrow I’ll try an old device for demagnetizing kinoscopes