I'm not sure, but that can't be good. Setup is everything. every little thing that's right gets you a little further and a little further. i had a mess last weekend, got down the the river and was having uhf rc problems and video problems. Things like broken solder joint on my cannon, one of my uhf antennas for rc was shorting, the dragon link and the spektrum gear fighting each other. When everything comes together, using that cannon which is a 12 turn axial helical, it never even gets a blink at the river for 4000 feet i got away. my skew planer on just a set of fat sharks gets 2000 feet then gets a little of this, then clear then little of that, but i stay so low it's no wonder. When i rise up it gets totaly clearer. When i try this same stuff here in San Diego, it's a mess. I'm 20 minutes inland from downtown including NAS north island, 10 miles from our major industry and mcas miramar so i don't have much wonder about why. You should make an effort and try it out of town to see if it clears up or if theres just too much interference. i know even my rig is horrible without an antenna extension holding the bluebeam up over the props
this one was working perfect, 6.4" up from the bottom plate
at one point i had my 5.8 vtx rubber banded to the back of the cam trying different heights
if you have an audio on your osd you can turn on and listen too is alot of info on how the connection is doing. if you hear motor whine, you got interferrence, etc. i use that announce every 30second deal on one parameter just to hear how the audio is doing