- there is likely an i2c usb dongle somewhere out there.  using something like that could make a setup run on an arbitrary system like a desktop or a phone

- given there is an imu, the gymbal could be optional to reduce price.  Data could be collected from the user sweeping their hand around.  The computer could guide where to aim the antenna via feedback if there is no gymbal.

- phones of course have imus too; a user could affix their phone to an antenna plugged into it