wvmarle:
Possibly most commonly to send sensor data across.
Yeah but I meant what kind of actual data? I could imagine weather sensors out in the fields sending wind speed etc back to the barn...
wvmarle:
Typical range: about the same as WiFi (same frequency).
Is it possible to attach some numbers? (Not that it matters since right now they're about 50cm apart; in fact I'm more concerned about them being too close 
)