FPV Transmitter 400mw Flysight Wireless Digital AV Transmitter 5.8GHz 40CH FPV VTX (SMA ANT)

Seems to work pretty good. Have it mounted inside a Carbon Cub S+ with an antenna extension to get it outside the plane. Can't say just how high or far I've flown, but it has been a pretty good ways, and had strong signal.