I doubt it but… there might be a way…
Some very quick research shows the following:
There is a USB Stick that operates on the 868,30 MHz Frequency but it is using a proprietary protocol.
I found a reference to this USB Stick in this thread: New Elero TransmitterStick Binding (but it seems that it doesn’t work)
I don’t know if that binding can be used to integrate your system with OH2…