I have the AVL58 with a cloverleaf antenna, using a right-angle connector so it points straight down. I'm using a 5" wireless receiver / monitor / DVR as seen at DroneFly, also equipped with a cloverleaf (this is not a diversity receiver.) Works fine up close, but I can't even get 300ft. line of sight at about 100' elevation. Opened up the AVL58 and antenna solder joints seemed good. I was using channel 1. Flipping through the channels at home, channel 4 looked a little better so I'll try that and see if that makes any difference, but I'm starting to think a diversity receiver is the only way to go with these things.