Hello again, back with more Matrix questions. This time, signal!
Relevant quote to my post: "Note that for two devices to communicate with each other (as opposed to one-way communication), the devices must be within the range of the weakest signal involved."
What actions require two-way communication? If I'm hacking a node, does its signal have to be able to reach my commlink? If my icon and another hacker's icon are doing battle on the node in somebody's Signal 0 Cyberarm (because we both really want that arm), do we both have to be within 3 meters of it?
There are probably a lot of other relevant actions I'm forgetting, but those are the ones that spring to mind immediately.