I don't understand how the RF portion works...4 antennas, does that equate to 4 receivers? If I want to use a directional antenna, do I need to have one on each antenna port? Just need a bit of basic info. I plan on using Kali on a Raspberry Pi to interface, then SSH into either the Pi or the Pineapple (I'm a neophyte so not a guru on SSH). Thanks for all comments.