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P4P sounds like an electric shaver?
2000 26 2016-12-22
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Todka
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Flight distance : 452267 ft
Australia
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New P4p has arrived. Switched her in and currently updating firmware.
From the moment it's on, it has a highish pitched sound a lot like an electric shaver.
Is this normal?I have a P3P and Iit sounds nothing like this.

Thanks in advance.
2016-12-22
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Geebax
Captain
Australia
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Post a video with sound.
2016-12-22
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RedHotPoker
Captain
Flight distance : 165105 ft
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Then You got the razor edition. Haha
They always said it would be a real Buzz... ;-)

Yes, please post a short video with clear audio.

RedHotPoker
2016-12-22
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Todka
lvl.4
Flight distance : 452267 ft
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Weird. The audio is fine on my phone but very faint on my youtube upload.

2016-12-22
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Todka
lvl.4
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Australia
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The whirring noise is the thing I'm asking about. The beat sound is interference from the phantom to my phone.
2016-12-22
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Punchbuggy
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Yeah, mine is like that too. I assume it's the fan inside.

I actually got used to it, but then I was surprised when I fired up my P4 yesterday - it's sooooo quiet. Very different in comparison...
2016-12-22
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Todka
lvl.4
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Sounds more like a vacuum gyroscope I'm used to hearing flying light aircraft.
Well if it's "normal", then I will do as they do in England, and just "relax and carry on".
2016-12-22
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rparge
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United States
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I have the same sound have found if you move it around slightly, it will change tone and a lot of times it will go away.
2016-12-22
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RedHotPoker
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If I had to guess, it's your Gimbal fan, & nothing to be concerned about. ;-)

Enjoy the drone, and your time well spent on the forum...

RedHotPoker
2016-12-22
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Todka
lvl.4
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Thanks all. I'm going away in a few hours and such fast feedback was awesome.
Merry Christmas!
2016-12-22
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RedHotPoker
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Todka Posted at 2016-12-22 18:17
Thanks all. I'm going away in a few hours and such fast feedback was awesome.
Merry Christmas!

Seasons Greetings to you as well, friend. ;-)

Have a great holiday weekend, bring your drone, for the ride. Ha


RedHotPoker

2016-12-22
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DRONE-flies-YOU
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Todka Posted at 2016-12-22 16:55
Sounds more like a vacuum gyroscope I'm used to hearing flying light aircraft.
Well if it's "normal", then I will do as they do in England, and just "relax and carry on".

Mine doesn't BUZZ like yours though.  Just the loud whirring of the fan.  I think your fan is just vibrating more against the body than the rest of ours.
2016-12-22
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Geebax
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DRONE-flies-YOU Posted at 2016-12-23 13:37
Mine doesn't BUZZ like yours though.  Just the loud whirring of the fan.  I think your fan is just vibrating more against the body than the rest of ours.

The buzz you are hearing is the ultrasonic ranging system underneath the aircraft. You can't hear it with your own ears, but the microphone in the phone can.
2016-12-22
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DJI Natalia
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It sounds normal, please do not worry about it, enjoy your aircraft.
Merry Christmas!
2016-12-22
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DRONE-flies-YOU
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Geebax Posted at 2016-12-22 18:46
The buzz you are hearing is the ultrasonic ranging system underneath the aircraft. You can't hear it with your own ears, but the microphone in the phone can.

Ah, I see.

I've flown in cold weather & noticed the fan isn't running upon start-up & landing.  Then it'll kick on if I don't turn off the P4P immediately.  So you can certainly tell when it is on!  
2016-12-22
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Geebax
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DRONE-flies-YOU Posted at 2016-12-23 14:47
Ah, I see.

I've flown in cold weather & noticed the fan isn't running upon start-up & landing.  Then it'll kick on if I don't turn off the P4P immediately.  So you can certainly tell when it is on!

Yes, the fan cools the electronics, in fact I believe it is the video processing section, and it gets hot very quickly when not in the air.
2016-12-22
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RedHotPoker
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Geebax Posted at 2016-12-22 22:26
Yes, the fan cools the electronics, in fact I believe it is the video processing section, and it gets hot very quickly when not in the air.

That's very cool. If I fly outside, my fan won't engage, until around March 2017. ;-)


RedHotPoker
2016-12-22
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Todka
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Oooh. Maybe it's just my browser but one of my flying YouTube videos comes up next after the Phantom noise clip. Apart from being awesome all on its own, there is a gyro instrument sound at the end that was what I was referring to.  :-)

And thanks Natalia for confirming all is good.  Cheers.
2016-12-22
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sshorty
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Australia
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Mine has a very similar sound, (high pitched sound) I find if I move put my hand over the battery (at the back) it seems to go away, but as soon as I let the battery go, it comes back..I noticed it when I very first started it up..it has flown perfect every time I have used it. I think it is pretty normal..
2016-12-23
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DRONE-flies-YOU
First Officer
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How do you like how the gimbal SCREAMS when you do the Advanced VPS Calibration?  It sure makes you hurry!
2016-12-23
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PhantomPhil
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United Kingdom
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Todka Posted at 2016-12-23 00:42
Weird. The audio is fine on my phone but very faint on my youtube upload.
https://youtu.be/-uH4MhMzDR8

Not ideal starting the aircraft on a glass table. The Camera's having difficulty doing its start-up calibration as  also the ultra sonic ranging system underneath the aircraft is being confused. Probably not the best test surface for evaluating noise. Just my 2 cents worth.
2016-12-23
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R&L Aerial
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Todka Posted at 2016-12-22 22:26
Oooh. Maybe it's just my browser but one of my flying YouTube videos comes up next after the Phantom noise clip. Apart from being awesome all on its own, there is a gyro instrument sound at the end that was what I was referring to.  :-)

And thanks Natalia for confirming all is good.  Cheers.

What happened with your gimbal sound? Did you return or did the noise go away? I'm experiencing the same thing .
2017-1-16
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SHIPARCH
lvl.2
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Didn't the regular Phantom 4 have the same loud fan noise after launch and wasn't that fixed with a firmware update?
2017-1-16
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Alex Tse
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I used to have this noise, but i solved it now, it is the fan causing vibration to the case, and somehow this vibration met the resonance of the case. so it is actually the case was vibrating and releasing that noise. What i suggest you to do is to loosen the screw of the case and re tighten it. This is how i fixed it. btw this noise shouldn't cause any problem while flying.
2017-1-16
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usere1c0332ac8
lvl.2

United States
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Mine does the same thing flys great though!!
2017-1-16
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Punchbuggy
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Alex Tse Posted at 2017-1-16 12:31
I used to have this noise, but i solved it now, it is the fan causing vibration to the case, and somehow this vibration met the resonance of the case. so it is actually the case was vibrating and releasing that noise. What i suggest you to do is to loosen the screw of the case and re tighten it. This is how i fixed it. btw this noise shouldn't cause any problem while flying.

Hey Alex, brilliantly simple solution. It may not work in all cases, but easy to try nevertheless.

Check out this break-down (of the P4 - the P4P appears similar in other photos) and note that one corner of the fan isn't secured and may rattle against the shell with the P4P as I understand it's a different fan (a miniscule  piece of foam pushed under that corner would resolve if it is):
https://www.rcgeeks.co.uk/blog/p ... ardown-whats-inside

I suspect that loosening the closest screw and re-tightening may allow the shell to settle better. Otherwise, for warranty reasons, I'd suggest only this and not pulling the P4P apart as per the break-down above. It's at your risk if you do, of course.

Otherwise, the fan in my P4P doesn't vibrate against the inner shell but it is quite loud. I didn't realise how loud it was until I pulled my P4 back out. OMG! It's almost silent in comparison!
2017-1-16
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Todka
lvl.4
Flight distance : 452267 ft
Australia
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No update for me. I've ignored the fan noise on mine and, apart form the cycling gimball problem, it works fine.
The cycling gimball seems to be fixed with bending the ribbon at the back away slightly as it contacts the camera as it moves.
I'm reluctant to open up a working aircraft. Think I'll just lave it alone.
2017-1-18
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