KentKeith
Registered

The manual for my 22062 says the following:
Functions:
This model is designed for operation on LGB two-rail DC systems with conventional LGB DC train controlers or power packs (DC, 0-24 volts)
Analog Operation:
This decoder can also be operated on analog layouts or areas of track that are analog. The decoder recognizes alternating current (DC) and automatically adapts to the analog track voltage. All functions that were set under mfx or DCC for analog operation are active (which probably means that that is no problem if you want to run it on dcc of mfx at a later date)
The built-in sound functions come from the factory inactive for analog operation
So, to keep it simple, you can run it on analogue but you don't get any sound. If later you want to go dcc, no problem, you can do that. These models are clever things these days!
Problem solved I think.
Reading all the above comments others have made I think that mountains are being made of molehills.
The loco can run on dc at which time it won't have sound. The loco can also run on dcc of mfx when all the various features can be activated.
I have a short section dc test track. When I've got time I'll plonk my Ge6/6-II on the test track and see how it reacts.
When talking about what can or cannot be done everything gets confusing and without a basic operating plan/wishlist for the future it gets even more complicated. KISS.