Dave K,
I have seen this problem several times now; the iFly showes that it is connected to SkyRadar as I taxi out, but once I'm airborne no data is being received. I then disconnect the USB cable, leave the SkyRadar energized, reboot the iFly, then reconnect to the USB and everything is fine.
I'm currently rewiring the power input to the devices, so I can depart with the iFly on, and once airborne then switch on the SkyRadar. I am hoping that I can get the two talking without having to start dealing with unplugging and then repluging USB cables while airborne! (I have all the available updates.) Thanks for your input very much, I will keep you posted how I make out.
That said, I know that it works, and not only with SkyRadar, but while driving an autopilot at the same time; I guess that just need to understand the "boot" sequence.
Dave Mc