Welcome aboard! At SoundTraxx, our staff are modelers just like you. Join us as we share our journey through the captivating world of model railroading. Here we will share our knowledge, experiences, and projects with you. We will also chat with our friends in the hobby and the railroading industry to keep you up-to-date on all things trains. Hop on board and embark on an exciting adventure with us. Everyone is welcome from seasoned collectors to newcomers!
Flex-Mapping & Function Defaults Explained | On Board with SoundTraxx (S3E20)
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
18 Sept 2026
New Faces, Blunami U30Cs & Dynamic Digital Exhaust (S3E19)
In this episode, we welcome our new Support Technician, David Kupratis, to the SoundTraxx team! We’re excited to have him on board and look forward to seeing what he brings to the position.
For this week’s model show-off, George brings two MOPACAtlas U30C locomotives that he has upgraded with Blunami and finished up for his coal trains. He also discusses his collection of 45–50 ExactRail Missouri Pacific 3737 hoppers that will be a part of this coal train.
Tech Tip: Learn what Dynamic Digital Exhaust (DDE)is and how to quickly set it up using the Blunami App.
#SoundTraxx #SoundBytes #Blunami #ModelRailroading#ModelTrains #DCC #DynamicDigitalExhaust #DDE #AtlasTrains #MissouriPacific
4 Sept 2026
Colorado RPM Guests, Show Schedule & What to Expect (S3E18)
George is slacking this week—he hasn’t finished a project toshow off! But he makes up for it with some special guests from the ColoradoRPM.
In this episode, George talks with the Colorado RPM teamabout the upcoming show schedule, what you can expect at the event, and why you should come join us. We’re looking forward to seeing everyone and having a great time at this year’s event!
#SoundTraxx #SoundBytes #ModelRailroad #ModelRailroading#ModelTrains #ColoradoRPM #RailroadHobby #DCC #ModelRailroadCommunity
Who has been a guest on SoundBytes: Train Talk from Milepost 141
Names identified in recent episode analyses. Showing up to five guests.
Tom Austin
Michelle Kempema
Jennifer Howell
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Apple Podcasts (US)
5.0 / 5
5 ratings
Spotify
5.0 / 5
3 ratings
Podcast Authority Score: 40 / 100
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Quality
68
Social presence
0
YouTube
0
Engagement
32
Contact SoundBytes: Train Talk from Milepost 141
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