Poor video reception.

[Speeder]

Hey guys,
I have a problem with my new Armattan chameleon custom build.
I flew t once at a big field (3 packs) and everything seemed fine.
Yesterday I flew the bird and the video had acquired tiny horizontal lines in the video. This visual made it almost impossible to fly comfortably. I have a (everything new) foxeer arrow V3 CAMERA a TBS UNIFY PRO VTX.
I tryed to recalibrate the camera, tryed changing lenses adjusting focus...no improvement. I also have dominator V3s and Laforge dual receivers. I am using
Tbs antennas on bird and goggles and a high gain antenna as well.
Any ideas for solution or experiance would be greatly appreciated.

Thank you Kindly
Keith

 

[Speeder]

Just some photos...

 

[Jtrjr]

Keith,

Those are all good components. I'm not sure about the high gain antenna, I have heard that you can go too high. I wouldn't think it's a camera issue, more likely the VTX or FC. Is it possible that the power setting got kicked down on the VTX? Check all of your antenna connections. I'm not sure how that VTX/antenna is attached to the carbon fiber frame, do the continuity test you did (I think?) on your other bird. If the antenna is grounded to the carbon fiber frame anything else you do will be in vain.

Jerry

 

[Jtrjr]

Looking at your pics, I'd definately do a continuity test on that antenna setup. Take your DMM, put it on the ohm symbol, you should see O.L. on the screen when the probes are not touching anything. Put the negative probe on the negative post in the XT60 connector and take the positive probe and touch all over around where the antenna and that antenna mount connect to the carbon fiber on the bird. If you get anything on your meter other than O.L. You've got a grounding issue.

Jerry

 

[Speeder]

Here is a picture of the antennas...
I don't know if the VTX antenna is grounded or not.
I don't know how to do a continuity test either....how embarrassing...

Keith

 

[Speeder]

This is what my volt meter looks like....

 

[Speeder]

I put the volt meter knob to 200 on the right side and put the negative probe in the negative xt60 slot...no response on the carbon att all but a strong reaction on the antenna base and the brass washer that attaches to the aluminum bulk head.

?????

 

[Speeder]

Hey guys ,
Do you think the battery leads could interfere with the video transmission because they are so close together?

Keith

 

[Jtrjr]

Keith,

When you check the carbon fiber you almost have to scratch it. Most of these frames have a coating on the surface. The best place to do it on the frame is the sides where the carbon wafers are pressed together. Are you getting the reaction on the aluminum bulk head? The antenna itself will cause a reaction. That's what you're trying to check, you want to make sure that the antenna is isolated from all parts of the frame.

Jerry

 

[Speeder]

Hi Jerry,
whatever measurement i am using ...when the probes are not touching anything it reads (1)
when i put the negative probe in the negative side of the xt60 i got a reading of above 65.

keith

 

[Speeder]

i touched the edge of the carbon frame this time not the top

keith

 

[Speeder]

Also Jerry,
nothing from the aluminum bulk head

Keith

 

[Speeder]

So , in laymens terms ...how do i go about finding the bad ground... that's what i am looking for correct? Where is a good place to start?

Thanks
Keith

 

[Jtrjr]

Keith,

Take a look at this video and see if it helps. I don't really know how your meter works so I don't think you should move forward looking for something if you're not sure of the test results. You might have to look up the manual for your meter to make sure you're doing the correct test.

Jerry

 

[Speeder]

Thanks Jerry,
I am going to have to send the bird back to OHIO.

No flying for me...
Keith

 

[Jtrjr]

Keith,

I guess that's why you have someone else build a custom bird, part of the price is insuring that it works properly. I'm a little confused, don't you still have two GT2's? Sorry about your bird.

Jerry

 

[Speeder]

Ok, I want and bought the proper multimeter and put it to ohms and the meter displayed O.L. As you said..i followed your directions and touched the edge of the carbon and it showed 65 ish. Definitely a grounding issue.....i lost that same bird again on my property somewhere....it can stay there... the other gt200 has a smoked motor and I am still waiting for them. (No gopro attached.

Keith

 

[Jtrjr]

Keith,

Make sure that your motor screws are not touching the windings in the motors. Pull the motors and lay them off to the side of the frame arms. With the motors off of the frame repeat the continuity test.

Jerry

 

[Jtrjr]

Not really sure why you're not trying to find that bird?

Jerry

 

[Speeder]

Armattan is already packed. This video issue started after i had already flown the bird...the first time i flew the bird...video was good. Never touched motors....these guys know their stuff....NOTE.GT200 wouldn't know where to start... don't want to arm my neighbors

Thanks ALOT Jerry!!!!!!!!!

Keith