[Talisker]

This looks like a novel way to go about it, if more costly.

You're forgetting Moore's Law. This thing is entirely digital.

[Utilizer]

Actually, I was referring to the cost of using a microprocessor and associated ICs to produce an RF output, especially at any useable power levels.

Think of it as attempting to generate, transmit, and receive RF signals using a motherboard and perhaps some logic chips.

Much cheaper to use analog components and simple circuits or simply purchase a prebuilt unit and customize it for your needs.