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DCC Fidelity Experiment

I have read that long Bus wires, even when twisted can produce noise or other reductions in DCC fidelity. So rather than speculate, i did a quick test to see if DCC noise is real or just a myth. I suspect that bus wire size has more impact on signal strength than on signal clarity. Twisting the bus wires should reduce accumulation of noise in the DCC signal and length of the bus wire can reduce both quality and strength of the signal. Even on my longest bus wire which is approximately 32 feet i have no loss in voltage so 14 ga solid bus wire seems sufficient for my railroad. Let me know if you have other thoughts or experiences with DCC signal quality.