Is it possible to untether the network wire?

Since the data transmitted is in the format accepted by regulat NICs, would it be possible to maybe use some SI-2K wireless dongle that'd transmit data?

And then capture it on PC side via laptop's wireless radio.

Possible or not?

The data being generated by the SI-2K Mini is uncompressed and can be over 100MB/sec (800Mbps); higher than most standard wireless devices.