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Thread: Options for reducing noise into 433 spectrum from Camera and VTX

  1. #1
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    Options for reducing noise into 433 spectrum from Camera and VTX

    Duplicate thread. Please delete
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    Last edited by DesignGeek; 28th January 2018 at 01:49 PM.

  2. #2
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    Built a shielded VTX cable from an old printer USB initial scans look like it neatly clips all the peaks off of The waveform. I’ll build another for the camera and see where I am.

    First pic is the shielded wire. Second picture is twisted servo wire. The waveform looks better with the shielded wire for sure but the noise floor isnt lower, I have been moving wires around so this may have had an effect on the outcome.
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    Last edited by DesignGeek; 29th January 2018 at 10:24 AM.

  3. #3
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    Try out cat6 shielded... works wonders

    http://fpvlab.com/forums/printthread.php?t=3641&pp=40

  4. #4
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    Yep--- I read that whole thread and built two of these from an old cable I had in my parts bin.

    Mesh shielded and foil wrapped. you would think it would prevent a bunch of stray RF from getting loose. The CAT6 may be better still ---being individually twisted within.

    It really did a great job cleaning up the wave form and clipping the peaks off. problem is still high overall camera and vtx noise. I'd like to take a big chunk of that away.



    Beginning to wonder how repeatable the results from the IRC Analyser tool are.
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    Last edited by DesignGeek; 28th January 2018 at 10:39 PM.

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