could power all your frogs quite easily. No more problems
        
        
          with short wheelbase locos or sound unit sound cutting out at
        
        
          dead frogs.
        
        
          Meanwhile, developments in super-capacitor miniaturiza-
        
        
          tion have allowed the DCC manufacturers to develop practical
        
        
          keep-alive circuits for DCC decoders. Now it’s possible to have
        
        
          a decoder keep-alive circuit that keeps your loco running over
        
        
          a dead section for several seconds, sometimes as much as
        
        
          5-10 seconds!
        
        
          To see this in action, check out Bruce Petrarca’s DCC column
        
        
          in the March 2013 issue of MRH. The video in this column
        
        
          shows the keep-alive in action as Bruce removes the loco
        
        
          from the track and lets it keep running for several seconds
        
        
          while off the track!
        
        
          So this begs the question – which of these approaches are
        
        
          better? If I have keep-alive in my locos, I clearly don’t need
        
        
          frog juicers too. And if all my frogs are powered, my track will
        
        
        
        
          MRH-Dec 2014