The DCS WiFi Companion 2nd Edition This newly updated, 242-page, four-color guide discusses, in detail, how to implement complete WiFi control of DCS on new and existing layouts. It contains more than 100 pictures and illustrations that educate the reader on the basic and advanced, features and functions of DCS from the point of view of the Premium version of the DCS App for smart phones and tablets. The book includes: capabilities and use of the Premium version of the DCS App; implementation of DCS WiFi on new or existing layouts via standalone or home network access; setup, installation, operation, and software updating of the Wireless Interface Unit (WIU); expanded coverage of troubleshooting and DCS App operation; and much more. The book has new sections devoted to installation and operation of MTH's new DCS Explorer, and the addition of Lionel® Legacy, and TMCC LCS components to seamlessly operate those command control locomotives. Reviewed by Jim Barrett in OGR's January 2010 issue, Barry's first book, The DCS Companion, was hailed as an "indispensable tool" that "should be in the hands of every command control operator". This enhanced edition of Barry’s second book continues the same tradition of allowing DCS operators to optimize the capabilities of DCS and maximize their enjoyment, now using WiFi through the Premium version of the DCS App. This book is both a DCS WiFi tutorial for those adding DCS for the first time to a new or existing layout, as well as a valuable reference for the experienced DCS operator. The uncomplicated language used in the book allows anyone to easily understand and operate the DCS Digital Command System using the Premium version of the DCS App, regardless of their experience level. Even the most expert DCS operators will find useful information regarding MTH's Premium version of the DCS App, and Wifi Interface Unit and DCS Explorer throughout this new book. Since each section of the book inherently builds on the previous section, the reader has the choice of starting from the beginning and reading through the entire book, or jumping to a particular section of interest.