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FPV system simple wiring question

Discussion in 'Photos and Video' started by UTR, Sep 8, 2013.

  1. UTR

    UTR

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    Hi guys I was thinking of getting an FPV system from hobbyking http://www.hobbyking.co.uk/hobbyking/st ... 8G_TX.html it comes with a filtered balanced lead adapter to power the unit. I was wondering I want to fit this gear inside my Phantom and is there anyway I can connect this to the power system inside the Phantom and not use the balance lead?

    I also have some other parts on my shopping list spironet antennas etc it's quite a list.

    Thanks

    Brian
     
  2. PTCX

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    I have the Fatshark Preditor FPV set up and I mounted it all inside the Phantom including the balance lead.
    To power the FPV from the Phantom battery you need to solder wires onto the same points as the auxilliary power wires and run them to the balance lead,or strait to the video TX if you don't want to use the balance lead.
    You could use the aux wire but it is too thin to do the job,IMO.

    I was going to post some photos of the way I set it up but the board has reached it's limit for attachments apparently.
    I will put them up on my flicker page and post them later.
     
  3. PTCX

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    Some links to photos of how I installed the FatShark FPV system into my Phantom.

    http://www.flickr.com/photos/ptcx101/9708312949
    http://www.flickr.com/photos/ptcx101/9711565826
    http://www.flickr.com/photos/ptcx101/9711631336
    http://www.flickr.com/photos/ptcx101/9711874822
    http://www.flickr.com/photos/ptcx101/9708349533
    http://www.flickr.com/photos/ptcx101/9711821812

    The full set of photos shows the progress of a frame swap rebuild including the installation of the FatShark FPV system and the Arris gimbal.
     
  4. PTCX

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    They're Carbonbird brand .I got them from MultiWii Copters.
    They don't come with the red covering on the end.The one on the Phantom touches the ground so I put some red plastidip on them for protection.
     
  5. UTR

    UTR

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    Thanks for the info Pctx that's awesome :)
     
  6. nikko1978

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    Hey, I just got the predator v2 goggles. I have the camera powered off the balance lead. I'm getting static when I'm powering my phantom up for acceleration and altitude gain. Have you had any similar issues?
     
  7. jumanoc

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    FatShark VTX are very sensible to battery noise when motors recall power. You can avoid it by using a small 600 mAh battery for independant powering the VTX.
     
  8. bumper

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    I'm using an Immersion 600 mw Xt, no problems.

    If you prefer not to fiddle with a second small battery just for the Tx, you might try to determine if the interference is getting into the Tx via the power leads by installing a small electrolytic capacitor (say a 10 uf 25 volt) across the power lead going to the Tx, or try installing a small, snap-on ferrite bead on the leads.

    Before doing that, though, you might temporarily relocate the Tx if it's inside the Phantom to get it further away from the ESC's. The ESC may be a more likely source of RFI than the motor itself (in the old days, motor brush arcing made lots of RF noise, now with brushless motors it's the harmonic rich fast rise and fall time of the switching square waves).

    bumper
     
  9. PTCX

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    I first had the video TX on the other side of the battery compartment,right next to the control RX board and there was more noise in the image in the goggles.Since moving it to the other side it's better so that's something to consider as well.
    Also,when testing the Fatshark system on it's own,not mounted to anything,I noticed that if the plugs were let to move,jiggle around,the picture in the goggles broke up a bit,so I used some three bond glue to hold wires and plugs still so the picture is not affected by vibration.
    At the moment the only picture issues I have are down to the bad connection between the camera's earth wire and the solder joint where it connects to the shielding around the cable.The little sucker just don't want to stay connected.
    Must be time to put that GoPro FPV cable in. :)