I want to draw attention to an excellent website that has been around for a long time. Its longevity is a testimony to its usefulness. When folks are new to DCC there are a lot of questions. I have been visiting Allan Gartner’s Wiring for DCC website for a long time, way before I bought or built any DCC system. Complex topics are discussed in a simple and friendly way to help the beginner get the most success out of their DCC layout.
There is also a Yahoo group that is quite active and is a great place to ask questions if you run into any problems. https://groups.yahoo.com/neo/groups/WiringForDCC/info.
The Yahoo group has closed and moved to Groups.io and is quite active. https://groups.io/g/w4dccqa
In one post in the group they talked about using a buzzer to detect shorts. Allan explains how to build and use one here: http://www.wiringfordcc.com/track.htm#a1. It’s a simple yet essential tool that will keep you out of trouble. In fact, my father and I used one while laying track well before DCC was on the scene. Short circuits were a real hassle in the days of power routing turnouts. In the modern world, Peco ElectroFrog turnouts are power routing and a buzzer is a great way to avoid them, or at least be aware when they pop up. Now, to dig into the boxes to find the one we built back in the 70s…