In article ,
says...

I just don't understand the issue about pilot overload. I'm asking for two
integers, and you don't need to look at them ever if you don't want to.


Will, I think you should look at this picture :

http://www.airliners.net/open.file?id=0286741


Then write back and tell us you really think we need some more numbers there,
to give us redundant information. The 430's in the picture already have RAIM,
and will warn the pilot if the information is below standard - Does this guy
look like he's starved for more numbers to stare at?

GF