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DCC systems are rarely perfect in their square wave outputs and have both overshoot and peaking that distorts the waveform. ALL significant but often invisible problems. (until you run trains in the dark, when you can actually often SEE the sparks).
When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.