I just finished building my Apex 5” using HW G3 stack and I used capacitor included.

  I have been using 200mW and video is great but I tried 500mW and got lines right away and if I give it power lines get worse.
 I tried 800mW and there is no video.
  I tried diversity setting on video receiver but same problem.

    I tried again but without motors spinning and 500mW comes in clean until motors spin up and 800mW has lines without props on and gets knocked out completely when props spin up.
 
 The HW G3 stack has a filtered 12volt BEC so I had to use a 5v pad.

I can’t find any thing about video signal loss at higher power settings only.

You may be overloading that 5v supply. Can you power it from somewhere else to test it?

(09-May-2021, 10:00 AM)Maiden Flight Wrote: You may be overloading that 5v supply. Can you power it from somewhere else to test it?

  The HW G3 stack 5v output is provided by the 4n1 so no matter what 5v pad I use it’s coming from the same source.
  The video on 500mW produces white horizontal lines when I punch throttle.Harder I punch throttle the stronger the lines.
  800mW is too bad to fly with but 200mW is great.
 I have some external voltage regulators that may work.

(09-May-2021, 12:30 PM)Rob3ddd Wrote:   The HW G3 stack 5v output is provided by the 4n1 so no matter what 5v pad I use it’s coming from the same source.
  The video on 500mW produces white horizontal lines when I punch throttle.Harder I punch throttle the stronger the lines.
  800mW is too bad to fly with but 200mW is great.
 I have some external voltage regulators that may work.

  I’m curious if I use a step down voltage regulator on the FC 12v filtered vtx bec if it will remain filtered.Does filtered mean it has a built in capacitor?

what vtx do you use?
"somewhere else" could be a external powersource like a lipo paired with a bec as example. on an external powersource, you could sort out if it is a current issue.


edit: if you are using the tbs unify hv, it seems to my refering to your apex build thread, the unify does require at least 7v, 5v would be wrong.

on a higher mw, there can come new interferences, antenna placement... share a picture :-)

(09-May-2021, 01:42 PM)hugnosed_bat Wrote: what vtx do you use?
"somewhere else" could be a external powersource like a lipo paired with a bec as example. on an external powersource, you could sort out if it is a current issue.


edit: if you are using the tbs unify hv, it seems to my refering to your apex build thread, the unify does require at least 7v, 5v would be wrong.

 I’m using unify pro V3.I should have posted that.
  That’s a good idea using a separate LiPo with power regulator.

i would try to cover the immortal t antenna and check if there is any difference, if so it might be interferences between radio and video transmission, antenna placement would it be than.
i watched the build thread and it seems likely its an interference issue, the antennas cross eachother what can be an issue and the active element of the crsf antenna is to close to the carbon. i would check that befor apply an external powersource.

(09-May-2021, 02:08 PM)hugnosed_bat Wrote: i would try to cover the immortal t antenna and check if there is any difference, if so it might be interferences between radio and video transmission, antenna placement would it be than.
i watched the build thread and it seems likely its an interference issue, the antennas cross eachother what can be an issue and the active element of the crsf antenna is to close to the carbon. i would check that befor apply an external powersource.

   Wouldn’t the interference get picked up on the 25 and 200mW settings?
 I’m just curious.
 I understand the higher the power the more interference.

 What can I cover immortal t with to rule out its interference?
  
 Would a video of DVR help?
 I can post a video of DVR showing the symptoms.
I don’t know how to download DVR onto computer but I can record it using my phone and post video if that would help.
I haven’t got that great at flying to post DVR footage so I haven’t messed with downloading DVR just flying as much as possible.

just place your hand between vtx and immortal t, also a piece of aloy could be used...
you cn also bend the ends of the immortal t a bit away from the carbon. if you have easy access to move the immortal t away from the vtx antenna, that would be the best to get an impression.
fits just important to see a significant difference, if so the placement should be the source




i believe the informations we have are good and important infos: video issues depending on the powerlevel
powersource issue or interferences seems like a good route, but more information, an additional video is always a good :-)

I was able to put SD card in computer and play videos but how to post them on the forum?

you can upload it on many platforms, link it inhere, i use dropbox

(09-May-2021, 02:54 PM)hugnosed_bat Wrote: you can upload it on many platforms, link it inhere, i use dropbox

  I'll have to try later.
  My computer uses QuickTime to play videos.I tried copy pasting and attaching as a file but no luck.
 Mothers day is close and today going to take Mom to steak house.

I’ll get DVR footage up a bit later today.
I think I can use Vimeo as a platform.
The 500mW is flyable but lots of white horizontal bars during punch outs.
800mW however is unflyable right after arming props it wipes out everything including OSD.
25 and 200mW looks great though so it’ll be interesting to get this resolved.

Here is link to video using 500mW

here a link to 800mW and the bars are before arming the black screen is when armed

Here is 200mW just to show how good it looks

I put hand over antenna and it does help clean up video when using 800mW.
I couldn’t spin up the props but when the weather is better,cold,wet and rainy I’ll try moving antenna and see if that solves the problem.