Would a yagi antenna link this one be a good option for extending my range on my spektrum dx6i? I think I'd also need this to make it fit on my dx6i. Or would its been be way too narrow to aim? Also if I fly my plane off of a high mountain in no-mans land using rhcp cl antennas with a 200mw tx would you think attempting over 1 km to be crazy??
this antenna would be very directional so it would not be a good antenna for your use. You need to look more at omni directional antennas. Really more power would be the way to go to add to the system you already have.