so anyway this has been bugging me for a few days. finished up a build on a stretched X frame, running a Rush Tank Max VTX wired direct to battery through a dedicated pad on the PDB. the solder joints look fine to me, no cold joints that i can see, and continuity checks out. but when i punch hard or sometimes just randomly mid hover i get like a half second of video dropout and it comes back. no OSD glitch or anything, just the picture goes to static and recovers.

im wondering if i maybe overheated the VTX when i was soldering because i was using a pretty chunky iron tip and had to hold it on there longer than i wanted to. or could this be a power issue? the VTX is on raw battery voltage with just a small cap across it. running 6S if that matters. the VTX is rated for it but still.

havent changed anything else, same quad was working fine before i swapped the VTX out last week

cap is probably the first thing id look at. one small cap isnt always enough especially on 6S with aggressive throttle inputs, the voltage spike when you punch it can absolutely cause that kind of dropout on a VTX. id try adding a second cap closer to the VTX input, or honestly an LC filter if you have one laying around. heat damage is possible but itd usually show up as a permanent issue or the output power being wrong, not intermittent dropouts that recover cleanly.

could also just be the antenna connector being slightly loose - ive chased a problem like this for a week and it was just the SMA not quite fully tightened. the vibration from a punch shakes it just enough. worth checking before you go swapping caps and stuff. also what goggles are you on? some have a squelch setting that can make it look like the VTX is dropping when its actually the receiver side.