Unraveling DCC Addresses
DCC tips, tricks, and techniques
D
ecoder-equipped locomotives can be like obstinate
children. You have to talk to them using the name
(address) they are prepared to hear. Children have a
habit of deciding on a new name on a whim, and not respond-
ing unless you use the correct name. Frequently this goes
something like “Tom” suddenly becomes enthralled with that
cartoon loco and insists on being “Thomas.” At least with
decoders, you have the option to select the name you want
them to use. Fortunately, decoders change their minds fairly
infrequently, unlike like children. But it does happen. When it
does, it helps to know what the options are.
As DCC systems have become more sophisticated, address con-
fusion has diminished. However, a bit of understanding of DCC
history and applications may throw some light in a few corners.
There are only a few CVs that come into play, so knowing what
they are, and how to understand what they are telling you, can
help to troubleshoot errant decoders.
DCC Impulses column
by Bruce Petrarca
Photos and illustrations by author
How to talk to your locomotive...
DCC Impulses Column - 1
