What it is
The Receiver is the FM tuner in your base console. It is how you move between the AetherWave stations and choose what plays through your rig.
Tuning
Turn the TUNE knob to sweep across the band. The dial cursor and the numeric readout move with it, and when you land within range of a station the Receiver snaps to it and starts playing.
The readout shows the frequency you are on. When you are tuned to a station, its call letters appear right beside the number, the way a real receiver identifies a channel: for example 88.1 WAVE. Between stations you see just the frequency. This makes it easy to scan the dial and see which station you are landing on.
The dial versus the directory
Not every station lives on the FM dial.
Dial stations are the foundation stations, each with a permanent frequency and call sign. These are what the TUNE knob moves across. They are a curated set, spaced across the band so every dial position resolves to its nearest station.
The directory holds everything else: additional stations that do not sit on the dial. Think of them like the extra channels you look up rather than scan to. They are reached from a station's own page rather than by turning the knob.
Tuning versus your own rack
Tuning the Receiver changes what you are listening to. It does not change the components in your rack. Your Tone settings, your added units, and your Output level stay exactly as you set them no matter which station you tune to.
Listening to a station's own sound
When you open a station from its page (a link that carries ?station=), you are hearing that station through the rack its owner built, not your personal rig, and the tuner is locked. Your personal stereo, at plain /stereo-system, is the one with the free tuner. The two are covered in Radio Stations and the AI Host.