[scottlocklin]

You're going to use ... what ... to re-remit false market data? A model airplane, compared to a giant tower designed to send microwaves over vast distances. Sure, that sounds possible. As for intercepting the signal for profit ... what are you going to do with it? The microwaves are already the shortest path.

[aaren]

I agree, it would be technically difficult.

My point is that there is a mechanism by which you could profit: false market data. Whether you could remain undetected and whether this could actually be implemented technically, legally or logistically seems uncertain.