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Thread: Recommend a video to VGA converter that does not have blue screen on signal loss

  1. #1
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    Recommend a video to VGA converter that does not have blue screen on signal loss

    I know the LTS Security BNC to VGA converter, from NewEgg and others, does not have this blue/black screen circuit, but the reviews are so poor, I'd rather look for a different brand.

    Thanks

  2. #2
    could quit if I wanted to volto's Avatar
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    There is a thread on RCG about the Visio, I don't know what the model number is off the top of my head but it runs on 12v and shows unlimited static. The other option is just buying the $13 OSD from Hobbyking and putting that on the video output of the receiver.

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    Interesting idea about the OSD. I assume I just hook it up in parallel with the monitor on the video out and the OSD signal keeps the video alive.

  4. #4
    could quit if I wanted to volto's Avatar
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    Yep, and then has the added benefit of keeping an eye on your ground station voltage.

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    I'm working on getting into FPV and just got my video system. The first thing I noticed when I tested it is that my screen (a Coby DVD player with video in) went to black screen a lot, though oddly not from a decrease in signal quality by moving the VTX, but from moving the camera from looking at a dark area to a light area too fast. It would probably do it from signal brownouts too if the transmitter wasn't sitting three feet away. If I understand it right, this problem is caused by the screen losing the sync signal from the video? And adding an OSD on the ground station would generate a constant sync signal that would keep it from doing this? Is that right?

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    Can anyone verify that the OSD method actually works?

  7. #7
    could quit if I wanted to volto's Avatar
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    I tried with the $13 osd from hobbyking and it didn't work with my 10" Haier LCD. I will try again tomorrow with my goggles.

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    Last edited by Jan; 13th February 2012 at 10:57 AM.

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    Navigator Asomaro's Avatar
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    I'm interested to find a solution to this. I already have an OSD for the plane end so I guess if I use the cheapy OSD on the ground station then I'd need to "arrange" the screen so that I could clearly identify the two units. It has the advantage of showing the GS voltages which could be useful.

    Cheers,
    Simon

    Think it, Build it, Fly it: www.desirerc.com

  10. #10
    could quit if I wanted to volto's Avatar
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    Unfortunately the $13 hobbyking osd doesn't generate it's own sync pulse so it won't work. I tried it on my goggles too to no avail. What we need is an inexpensive inline sync generator, the chip can be had for $7, but I would have no idea how to use it. Maybe I will get one and experiment with it if I have time.
    Don't steal, the government hates competition.

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