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Flex-Mapping & Function Defaults Explained | On Board with SoundTraxx (S3E20) episode artwork

EPISODE · Oct 5, 2026 · 30 MIN

Flex-Mapping & Function Defaults Explained | On Board with SoundTraxx (S3E20)

from SoundBytes: Train Talk from Milepost 141 · host SoundTraxx DCC

In this episode of On Board with SoundTraxx, Dave has ordered his first locomotive and is excited to install a decoder before heading to George’s layout for an operating session! For this week’s model show-off, George shares his Missouri Pacific ExactRail 3737 Bethlehem hoppers. He’s adding weight, coal loads, magnetic air hoses, Tangent trucks, and weathering to create loaded and unloaded trains that can pass each other on the layout. With SoundTraxx Reactive Dynamic Digital Exhaust (DDE), you’ll be able to hear the difference in locomotive workload! Tech Tip: Flex-Mapping & Function Defaults Are you remapping functions but not getting the results you expected? Dave explains some important things to remember when customizing your decoder’s function mapping: - One function button can control multiple effects. - Moving an effect to a different function button does NOT automatically remove the effect already controlled by that button. - Function outputs do not automatically correspond to function keys. For example, the FX6 function output is not automatically controlled by the F6 button on your throttle. You can configure this using function mapping! - Learn how resetting CVs can help when your decoder isn't behaving as expected.Tune in to learn more about function mapping, decoder customization, and getting the most out of your SoundTraxx decoder! #SoundTraxx #OnBoardWithSoundTraxx #ModelRailroad #ModelTrains #DCC #DecoderInstallation #FlexMapping #ModelRailroading #ReactiveDynamicDigitalExhaust #Tsunami2 #Blunami

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Flex-Mapping & Function Defaults Explained | On Board with SoundTraxx (S3E20)

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