When i had 2 amps on remote and used high channels like i did before amps, lost video at 4-5km range. Eg. Ch30 you are using = 2.576g and sunhans booster amplifies only 2.4-2.5g signals. With airside mod it works good with high/low channels, but then you dont need second amp on the remote so kinda solves the problem. Your problem now is windsurfer-antenna, does not work with clover antenna on bird, just like someone said before.
Figured this out day after purchasing airside mod, thats why i said i guess i would been happy with just switching to 2.4g-2.5g range (=auto channel) That 32ch hack is only for video, it still uses regular 2.4-2.5g for control.
Dbsmod itelite panel was too sensitive when it comes to orientation changes.. it doesn't need more than 1cm movement and you lost all signals when you are out for +5km. It works very good, was just too hard to point. I'm sure it has great range, but from my experiences you almost need a tripod for it...also, penetration wasn't that good with it.