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What Is Going On

Discussion in 'AP/FPV' started by Pelagic Pilot, Oct 19, 2012.

  1. Pelagic Pilot

    Pelagic Pilot Registered

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    What is going on with this? I can't think of how this would happen...

    http://www.youtube.com/watch?v=bQgXVqc2IWc
  2. GPS

    GPS Registered

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    Bad cable.  Probably inferior shielding.
  3. Golden Child

    Golden Child Moderator Staff Member

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    I agree, cheap cables is my thought.
  4. GPS

    GPS Registered

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    If you've ever stripped some of those RCA coaxial cables you will see that the shielding can be pretty miserable.  Often it's hard to see how they can claim the braiding as a shield at all because it is so loose it barely covers the center conductor's insulator.
  5. Pelagic Pilot

    Pelagic Pilot Registered

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    Something new for us to watch out for if we ever have video Rx problems.
  6. LEM504

    LEM504 Registered

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    I had exactly the same problem.  It was a mis=match with the connecters.  For a lack of proper name - same type of plug used to charge radios.  There seems to be a wide range of diameters
    on the outside and the pin diameter.  Wiggle the wire - problems?  Either broken wire inside. or a bad connecter.  Could also be a bad solder joint at one of the connecters.
    Easy to find.  Just wiggle the wires, one at a time, on each end.  The stero jacks are probably Ok.  My bet would be the power plug.

    Larry
  7. GPS

    GPS Registered

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    In the comments he resolved it.  It was a RCA cable with crappy shielding.
  8. w00d

    w00d Registered

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    [size=1.2em]Try 'choking' the SUKA {LOL} [/size][size=1.2em]Ferrite Rings [Google]

        [​IMG]  [​IMG]

    [/size]
    Often NOOBS omit from their helicopters power input as it's not really required since 2.4g Radio's became popular.
    ... Also NOOBS and even some retailers have confused 'Ferrite Rings' with 'Ring Magnets' because they can use ferrite material to make magnets per say, thus the two look similar but that's a whole different subject eh

    "Lest We Forget - Kipling" ... Although we can get-away without a power filter for our Receiver (Rx) lest they forget the other systems which are susceptible to high frequency noise produced by our poorly filtered power input. Such as the monitors connected by ALL those "poorly shielded video cables"

    Yup as with good cable 'shielding' adding some 'Ferrite' to the system is just darn good engineering
    ... w/ that most of the better Video Cables do indeed include them, AND the BETTER PSU (Wall Wart) also include some 'Ferrite'
    ... better to "have it and NOT need it" than "need it and NOT have it" yeh

    Moral of the story, don't forget your 'Ferrite' fellas [​IMG]

    FYI:
        [acronym=EYE See! "w00d's Photo Musings" LINK to my BLOG][shadow=grey,left][size=1em]w[/size][size=1.25em]00[/size][size=1em]d[/size][/shadow][/acronym]
  9. GPS

    GPS Registered

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    I don't think I've ever seen a RCA cable with a Ferrite.

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