FPV wiring Diagrams

[Bear Pants]

It makes a huge difference, I have video that proves it, 10 turns minimum and the cap on the side you are trying to filter and you will be sweet

Mark

Okay I'll wind it more times and throw the cap on the other side. I hate misinformation. Thanks for the tip!

edit:
Your a life saver. Thank you!

[Vitamin J]

Whatever you do, Bear Pants, don't post a video of your problem. Sometimes lines in the video have nothing to do with wiring but vibrations. Perhaps some wires are too close to others, who knows, post up some pictures of everything installed.

[Coyote]

As that thread continues we found that the capacitor side does have a bearing on results. What makes the biggest difference between the filter working or appearing not to is your cable placement. If you have your cables ran along side each other IE power and video then the LC fliter is rendered useless.

[Bear Pants]

Yeah I wounded the power wire a few more times around the toroid and then I switched sides teh capacitor is on. Fixed my problem 100%. So it seemed it was related to that. Full throttle with prop on showed no lines at all. The issue I was also having which may have been cleared up. Is the DOSD (with borders on?) produces a white blur across the screen. Seems like the DOSDs fault. But when I turn with borders off. It fixes the issue sure. But I can't read anything on the text. I know this can't be just me.

Thanks for the tip Coyote. I'll keep that in mind for sure. My LC filter is now more "proper" and cleared up the issues I was having. Thanks!

[Mark Hitchman]

Try a 100 ohm resistor between video signal wire and ground, usually just before the vtx, I put mine inside the vtx, but it can go pretty much anywhere. If it makes it better but not perfect then swap the 100ohm for a 68ohm and try again.
Usually the issue is the video signal voltage is too high and tying it to ground through the resistor drags it down a bit.

Mark

[Bear Pants]

Try a 100 ohm resistor between video signal wire and ground, usually just before the vtx, I put mine inside the vtx, but it can go pretty much anywhere. If it makes it better but not perfect then swap the 100ohm for a 68ohm and try again.
Usually the issue is the video signal voltage is too high and tying it to ground through the resistor drags it down a bit.

Mark

Okay. I'll try this and see if it clears up the white blur lines across the screen. Thank you again Mark!

Should I put the resistor onto my cameras video wire or my vtx video wire? They both seperately go into the osd. Thanks!

I came across this as well. Though I don't have good enough soldering iron for small pcb boards like this.
http://www.forum.tsebi.com/viewtopic.php?f=7&t=74

[chicken sashimi]

As that thread continues we found that the capacitor side does have a bearing on results. What makes the biggest difference between the filter working or appearing not to is your cable placement. If you have your cables ran along side each other IE power and video then the LC fliter is rendered useless.

Hey Coyote.

Running cables along side each other in a plane is ALMOST unavoidable given that most cable are coming to and from various common locations/components. What do you do to deal with that reality? Is braiding the cables enough to solve this cross contamination? What about using lengths of super-shielded CAT6 cable wherever you're running multiple cables down a common channel/groove? Is that overkill, or should I do it since I have said cable, in order to eliminate one more variable?

[Coyote]

In a plane like say a Skywalker, X8, or a Zeph etc should be very easy to do, there is so much space. Using multi-core cable is fine as long as it only carries signals, not power. In my wing I used multicore and 2 core next to it for power with flawless results with no filters.

In say an EZ Star or Funjet type plane it becomes tighter but running the power wires down one side of the plane and Video / Audio down the other is normally more than enough separation.

I normally run all my Video / Audio in shielded cable, even if it does not really need it. With correct earthing of the shield it will perform perfectly. I don`t use CAT6, no reason why really, I have no idea if its good or not, the reason why not is purely that using shielded cable has never failed me, so if it aint broke, don`t fix it

The key to success IMO anyway is :

Clean power supply to video equipment

Good filtering ( if required )

Good separation

[Nakelp86]

can you guys help me with microphone connection here

[Bear Pants]

can you guys help me with microphone connection here

Looks correct. What is the problem? One wire from VTX audio to the 4th pin on the video bus of the DOSD