What the radar screensaver is
The detail that makes a sweep look like a sweep is that the whole picture is painted by the beam and then left to decay. A contact is only lit when the beam has just passed over it, and the same is true of the receiver noise, the sea clutter and the weather cells around it. Versions that draw fixed dots with a line spinning over them never look right.
Over that decaying video sits a second layer that does not fade: track symbols, velocity leaders, one history dot per scan, and a designation cursor that steps from contact to contact with its bearing, range, altitude and speed. A real console composites exactly those two registers, and the contrast between them is most of what you are looking at.
- A control-room or command-centre look for a set or a stream
- A background for a game night or a themed event
- An idle display with steady, predictable motion
Radar screen online with a live sweep
A bearing tag rides the beam and the corner blocks hold a live track table, so the screen always has something changing on it even when no contact is lit.
The colour control takes any hex value and repaints everything at once — graticule, sweep, returns and readouts. Amber gives an older scope, cyan a more modern one, and the default green is the one everyone pictures.
How to run the radar screensaver full screen
Press the fullscreen button on the player, or the F key. Escape brings you back to the page. On a desktop browser F11 does the same job and hides the browser’s own toolbars as well, which is what you want on a display that is going to be left running.
Everything you change in the settings is written into the address bar as you change it, so the version you have set up is a link. Bookmark it, or send it to whoever is running the screen. Space pauses and resumes at any time.