Today, I did a little testing of my new MTH DCS Explorer.
This is a neat and fairly inexpensive way to be able to run your Proto2 or 3 engines (Standard Gauge or O gauge) with your IPhone. You can find them for as low as $129 on Ebay.
Our local SGMA MD modular group will use the DCS Explorer at public shows to run our Proto 2 or 3 engines. I bought one for the club, I liked it so much that I bought another for my Carpet Central line.
The unit is a Wi-Fi and TIU together in a small package.
This was a big test: I ran a 408e (with two motors) pulling 7 lit cars for two hours at 50 SMPH...I experienced no problems.