who is the audience for signal level?
Well, so as to not get too silly over this signal level question, let's take a step back.
Just not doing it is fine.
Now, if those making the web pages can come up with some simple and useful way to give an indication for a particularly hot or cold bird, that would be nice.
Dealing with the user's postal code is not necessary.
In general , I think it's a given that Canadians might need bigger dishes in many (not all) cases.
In general , Alaskans and folks in Hawaii have a different view of the world.
In general , I think west-coasters will understand the problems of getting east coast birds.
There's a bird that is receivable in the south-west US and Mexico, and probably not so well in the rest of North America.
It's already
clearly marked on The List.
Satmex5 at 116.8 can be annotated that way, too.
Perhaps it can be listed with no icon, forcing the user to take note of its special condition and seek better data.
In general:
Of course there are exceptions, but when a user sees a weak-signal icon for a satellite or transponder, that can indicate he should do some additional homework on receiving that asset.
When encountering a strong-signal icon, he is alerted that he should confirm it applies to his location.
Nothing is perfect, this is just a helpful indicator.