Do you need this immediately for a launch, if so is it LDRS? I have both the TeleDongle and TeleBT, which I can let you use for recovery while at LDRS. Assuming it does not interfere with my using them. Chris from Chris' Rocketry Supplies will be attending and he is a vendor for Altus Metrum. I use a 3 element yagi, which can be ordered online https://www.arrowantennas.com/arrowii/440-3ii.html One thing you will need is a a 50 ohm male BNC to male SMA connector.