Don,
The Super Chief isn't necessarily non-compliant, it was just never submitted for testing.
Straight from Digitrax:
"In 1996 Digitrax received a conformance seal for the DB100 Challenger Command Station (Challenger was retired after 5 years of production in July 1998). Based on our experience in obtaining the Challenger Conformance warrant, we chose not to submit any additional Digitrax products for testing at that time. Since then we have worked privately with the highest levels of NMRA leadership by making them aware of some very serious concerns that we had regarding 1) the actual testing being performed, 2) the documentation of that testing, 3) the conflict of interest of certain individuals involved in the program, 4) the legalities involved in the whole process and 5) the need for guaranteed confidentiality during testing of new products."
You can find more info here: http://www.digitrax.com/v1/nmracc.htm
Steve
Anybody have an idea?
-Don
Don - Specializing in layout DC->DCC conversions
Modeling C&O transition era and steel industries There's Nothing Like Big Steam!