The most common way to use a TeleBT is to match it up with a short yagi and suitable connector adapter. For all but the most demanding high-altitude flights, we like the 3-element Arrow II Hand Held Portable antenna, and a simple SMA to BNC adapter that we sell.
The missing piece in this setup is some sort of bracket to keep the TeleBT from flopping around on the antenna boom and loosening up the SMA connector.