I have had the Garmin 330 mode S coupled to the Garmin 430 for a year.
I never realized how close to other small planes you can get without
seeing them! Big iron is easy to see at 2 or 3 miles bit us small
stuff can remain invisible at a mile or less depending on the sun, haze
etc. Sure would be good if the area of coverage was expanded.

Also, why didn't Garmin have a "Traffic Available" message to
complement the "Unavilable" message?

Chuck