It can be done, but it’s not easy. There’s some debate over which is the appropriate antenna, but ultimately I think it’s a wasted effort. The Wii U uses 5GHz bi-directional antenna for the gamepad and it channel hops very frequently to avoid interference. I’ve done some spectrum analysis on it and you can see it channel hopping pretty frequently when things work right, but when the gamepad shows “signal isn’t strong enough”, the thing hops around like it’s on fire. And since it’s pretty low power, you can’t really extend the range without causing interference.extending the range of the gamepad. The thread i saw showed little improvement. Maybe a repeater?. Anyone know anything about that?
Honestly, I wish Nintendo had gone with the 2.4Ghz range or just used Bluetooth. At the time, though, neither had the speed/latency required for 480p display and audio as well as handling inputs.
It’s as good as it’s ever gonna get, in other words.

