Hello guest, if you read this it means you are not registered. Click here to register in a few simple steps, you will enjoy all features of our Forum.
This forum uses cookies
This forum makes use of cookies to store your login information if you are registered, and your last visit if you are not. Cookies are small text documents stored on your computer; the cookies set by this forum can only be used on this website and pose no security risk. Cookies on this forum also track the specific topics you have read and when you last read them. Please confirm whether you accept or reject these cookies being set.

A cookie will be stored in your browser regardless of choice to prevent you being asked this question again. You will be able to change your cookie settings at any time using the link in the footer.

Thread Rating:
  • 0 Vote(s) - 0 Average
  • 1
  • 2
  • 3
  • 4
  • 5
Motor noise on camera
#1
Hey Guys,

I spent almost 5 hours trying to solve this issue last night.  Thank god I sort of solved the issue.  The problem is....

I'm getting horizontal black lines on the video when the motor spins up.  The faster the motor spins, the worse the black lines gets.  I know what some of you are thinking already.  

Here's my electronic setup just to clarify:

I have a pdb with a good quality low esr cap. 
VTX is powered by a 9v regulator filtered by an LC Filter
Camera is powered by 5v from vtx

If you ask me the above mentioned is already overkill for cleaning video noise.  Anyway I have 2 cameras I tried this on, and they are both hs1190 v1. 

I was about to give up until I changed the camera to an old school cmos camera and all of a sudden all video noise is gone!  It almost seems like the internal regulator for the 1190 cameras are messed up.  

Did anyone else experience this?  
Does anyone know if I can solder a cap on the camera's board to remove motor noise?  
Are my 2 cameras just messed up?

Cheers and Thanks!
Reply
Login to remove this ad | Register Here
#2
I've read that this can be caused by grounding issues. They should be grounded to same place.
[-] The following 1 user Likes sloscotty's post:
  • unseen
Reply
#3
Show us some pictures of how you have wired everything together. How you route and manage the wiring from the camera to the OSD and to the VTX is really important when it comes to minimising the chance of them picking up noise.

While capacitors and even LC filters help to an extent, you can't get away from the fact that there are wires in your quad that carry large currents that vary rapidly in both magnitude and frequency. That creates powerful magnetic fields which can easily affect nearby wires.

Your average quad is probably one of the most electrically hostile environments there is and I'm surprised every time I manage to build one with a clean video signal! Smile
[-] The following 1 user Likes unseen's post:
  • Drone0fPrey
Reply
#4
Hey Guys,

I no longer have it hooked up. Is I mentioned earlier I simply replaced my camera and everything is good. No more noise. It's just strange that the noise only happens when using an hs1190 v001 camera. When I was doing the testing all the bits are outside, none of the components were close to each other.

I was just wondering if this was a known issue that these hs1190 cameras have.
Reply
#5
(19-Apr-2017, 10:59 PM)trojanGoat Wrote: Hey Guys,

I no longer have it hooked up.  Is I mentioned earlier I simply replaced my camera and everything is good.  No more noise.  It's just strange that the noise only happens when using an hs1190 v001 camera.  When I was doing the testing all the bits are outside, none of the components were close to each other.

I was just wondering if this was a known issue that these hs1190 cameras have.

Ah, sorry, I obviously didn't read your post properly.

Check the actual voltage that your VTX is providing on the 5V output with your multimeter. If it's not at least 5V while the HS1190 is plugged in, it could result in a marginal supply for the camera.
Also, the camera will happily run on the 9V from your regulator, so you might like to try powering it from there instead.
Reply
#6
Black lines could be a loose ccd sensor. Try to knock the camera when the quad is not armed and see if the vibrations from the knocking will bring out the black lines
Reply
#7
Yes those could be it. Sometimes when I spin up the motor the black lines will get worse or I will get scrambled image, then it might go away. Is there a way to fix this?
Reply
#8
Search for "Oscar liang glue ccd" and you'll find some i formation (I'm on a phone and didn't bother with searching for you Tongue) I fixed a couple of them by reflowing the solder by heating each pin with the iron
Reply
#9
Open the FPV camera and see if the sensor and crystal cylinder are falling off?
example: https://oscarliang.com/hot-glue-runcam-swift-camera/
Don't be a LOS'er, be an FPV'er :)  My Gear - Facebook - Instagram - Twitter
[-] The following 1 user Likes Oscar's post:
  • trojanGoat
Reply
#10
Hmm Thinking now Im curious about my Swift2. No problems as of yet, but my cam took the brunt of a hard crash just the other day.
[Image: 6iR4oGZl.jpg]
Now is as good of a time as any to open it up Wink
The Obsession IS Real!
My Youtube and Instagram links
Reply
#11
(26-Apr-2017, 12:09 PM)Drone0fPrey Wrote: Hmm Thinking now Im curious about my Swift2. No problems as of yet, but my cam took the brunt of a hard crash just the other day.
[Image: 6iR4oGZl.jpg]
Now is as good of a time as any to open it up Wink

Swift2 are good, they glued the sensor in facotry, and stopped using the dangling crystal
The issue really only happens to the first batch of Swift 1... guess they learned that lesson pretty well Big Grin
Don't be a LOS'er, be an FPV'er :)  My Gear - Facebook - Instagram - Twitter
[-] The following 1 user Likes Oscar's post:
  • Drone0fPrey
Reply
#12
(26-Apr-2017, 09:25 AM)Oscar Wrote: Open the FPV camera and see if the sensor and crystal cylinder are falling off?
example: https://oscarliang.com/hot-glue-runcam-swift-camera/

Thanks Oscar,

I'll try this out!
Reply


Possibly Related Threads...
Thread Author Replies Views Last Post
  Darwinfpv Hulk - Camera Fog randomchuck 8 416 09-Aug-2023, 01:40 AM
Last Post: randomchuck
  Betaflight Motor Test Results in SmokeStopper overvoltage LoganFPV 5 233 01-Aug-2023, 11:22 AM
Last Post: hugnosed_bat
  Build T-Motor F7 stack - Betaflight Gyro update frequency 3.2kHz ???? MindBenderFPV 2 3,070 18-Jun-2022, 09:10 AM
Last Post: SnowLeopardFPV
  GPS and motor bell fault after a crash Trial4life42 1 374 12-Apr-2022, 11:43 PM
Last Post: kafie1980
  Help List of motor size/KV for different props size / LiPo cell count Oscar 6 2,068 24-Mar-2021, 01:39 PM
Last Post: Titanv11


Login to remove this ad | Register Here