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Hello. As an avid fan and forthright supporter of DCC here are some additional things to consider for a DCC system. Another feature regarding Digitrax systems is that Digitrax makes their system on a modular plug and play format. Meaning you can start with a Zephyr system now, and when you’re ready, upgrade into the Chief when your layout is ready. Another thing about the Zephyr is that it comes with most of the features found on Digitrax's larger system. And the features not available, that are on the Chief are essentially more efficient ways to do what you can do already on the Zephyr. My recommendation for a full featured system set up that I used when I helped my ex-girlfriend build her layout was as follows. 1 Digitrax Zephyr starter set 2 Digitrax DT300 Throttles 2 Digitrax UP-5 Throttle Jack Panels. Each DT300 Throttle is actually two throttles on one body. This set up will give you full independent control of 5 trains simultaneously. As for switch machines, there are two types. The first type is Known as a twin coil and is the "electromagnet" type you referred to earlier, as well as the second type of switch machine known as a "Stall motor" which is a low voltage motor designed to move the point rails from side to side and stall when the throw is hard over. There are several choices for powering these motors. The first is with a separate power system similar to conventional DC power fashion. The second is with DCC Accessory Decoders. I personally use the separate power system as it makes the wiring less complicated for me. If you use the Accessory Decoders, You will have to take into account the power demands of the switch machines. As a whole the Stall motor type will take more power because it is energized constantly, while the twin coil requires a short burst of power when activated. There is a third option and that is using a ground throw. A ground throw is a hand operated switch activating devises that looks an awful lot like a miniature switch stand next to a switch. I use them extensively on my industrial switching areas of my layout. While a bit over scale for HO, scale fidelity has to give way to human ergonomics to facilitate reliable operation. Ground Throws also have the advantage of eliminating all the wiring associated with using a switch machine to throw the switch. Welcome back to the hobby, I wish your tour of duty in Afghanistan to be uneventful, and should it be eventful, do all of us grateful people here in the states a favor and kill some Al-Quieda Scum for us. Sincerely, James.
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