"Yellow" indicates you've 'visited' that station. "Cyan" indicates a link you haven't visited. (normal) Depending on browser settings they revert back to 'normal' - cyan once you've cleaned your cache... or revisit the index,... depends on browser and settings...
The "nav" color change used to be more or less standard as an aid to surfers on pages with lotsa links... I like it, you're stuck with it.
"Red" on rollover means "your cursor is here",... or "click me"... or whatever...

Green station numbers are "Green" systems.... Red indicates "Red" station. And when new systems release
next this

year, they'll probably be "blue",
assuming I don't get fed up with updates, additions, and changes... Got a buncha pages to update as of today.... gonna take awhile. then Egon
will probably change things again, and I'll have to start over...
](https://www.wxforum.net/Smileys/default/eusa_wall.gif)
Index is 'sortable' by station#, station name, or 'country/state'.....
Note that the displays do NOT show all the data that can be shown... they're running "minimum" server data output for these displays currently.
Also the goal of this 'site' is to help operators optimize their station, by comparison, and to have some extra tools for isolating and mitigating noise sources. It shows a 'digitized' version of the signals received at the server. The "HiRes" has helped folks in the past...
Sorry, I just can't throw a switch and update all stations. I didn't build it with that capability, and this takes time to do.
Mike