I've been searching here because I was sure I remember reading instructions on how to do this but I cant find anything.

I have a running setup but would like to relocate my antenna/feeder.

At the moment the only way I can do this is to get WiFi working on my Pi.

I'm pretty sure it involves sudo nano wpa_supplicant.conf, and editing the file for my SSID and WPA-PSK password etc.

The part I'm not sure about is where to sudo nano this file.

I have a fully configured running setup at the moment and have been making all of my changes SSH.

Thanks in advance.