Drones and proximity, How close do riggers have to be to their drones? Options

[Kurrel]

I've been running a game for a month or two now, with everyone adjusting to the game.

However, a new player has brought some interesting challenges to the table by electing to play a rigger. This person has played before and is something of a rules enthusiast. This has, in many cases, been helpful with a few issues we had before (damage of spells, notably).

However, in trying to master the rigging concept we've started to butt heads over how far away the rigger must be in order to jump in and / or issue commands to his drones.

The rigger drives by in a van, drops off drones and then simply goes away. Usually far away. In reading I figured that they had to be withing signal rating but the player countered that drones are controlled through the net. In further reading, I figured out that they are then devices and the proximity rule still applied. Being told "That's absurd, they can be controlled from anywhere." was not the best way to get an answer. Now, the insistence is that "Where in the rules does it say that?"

I'm more of a roleplay-master than technicali. The rules regarding Rigging seem very distributed and linking each rule in a coherent argument is beyond my current familiarity with the relevant section or sections.

In essence I'm hoping someone here can give me a clear proof, one way or the other, as to where a rigger must be to control drones. If anyone can give me a step by step proof, or even just where to find each relevant rule, I'd be very happy!

Personally, I don't much like the rigger having to be anywhere they please... they might as well stay home and why don't all runs get done this way?