last site update 9thOctober2018

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Technical Resources & Reference
About YouChoos
YouChoos British Sounds
Sound Decoders (blank)
Standard Decoders
Function & Accessory Decoders
Lamps & Lighting
Seuthe Smoke
Electronics & Connectors
Tools, Glues & Adhesives
Ready-To-Run Models
DCC Systems, Feedback Modules & Programmers
OO Steam
OO Diesel/Electric
OO Coaches
N Diesel/Electric
N Steam
N Coaches
Quick Helps
Technical Resources
Install Guides
CT Documentation
Build your own sounds for CT
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YouChoos Resources
Fitting Guides CT Elektronik Documentation Build Your Own Sounds for CT

DCC Addressing and Consists

YouChoos Products

Decoders will normally be supplied with their DCC 'address' set to a default of 3. If you have multiple locos fitted with DCC, then you will need to change this quite soon.

Most DCC controllers provide automatic facilities to change a decoder's address, but it may be useful to understand how this works under the covers. The full range of addresses goes from 1 up to 10239, although most DCC controllers are limited to 9999 (4 digits), and some are limited to just 2, or even a single digit!

If your chosen address falls in the range from 1 to 127, then this is known as a 'short' address, and is stored in CV 1. With bit 5 (value 32) of CV 29 switched OFF, the short address is active, and the decoder will respond to commands on the address stored in CV 1.

For addresses between 128 and 10239, a formula is used to calculate and store the address in CVs 17 and 18. This is required because the largest number you can store in a single CV is restricted to 255. The long address is active when bit 5 of CV 29 is switched on.

CV 19 is used when you add your loco into a Consist. Refer to your DCC controller's manual for more information on Consisting (temporarily placing multiple locos together, such as double-heading).

Experiences & Commentaries

YouChoos Resouces

HINT: For document links below, either open them directly in your web browser by clicking the links, or right-click and save target instead...

YouChoos commentary on various decoders    
YouChoos Products

Build your own sounds for CT decoders

YouChoos no longer supplies CT products, but if you are interested in obtaining a license for the YouChoos/CT SoundProg software, this is still available, costing £25 for a single PC license. Note that no further maintenance is planned.

The software was developed by YouChoos and runs on a PC enabling you to build, manage and load your own sound projects into CT sound decoders!

Build your own sounds for CT decoders Costs only £125

Required parts:

  • CT SoundProg device (not supplied)
  • UK power supply (not supplied)
  • Serial-to-USB cable (can be supplied by YouChoos on request)
  • YouChoos' own software for creating, managing and loading sound projects to CT decoders (included in &25 license)
  • Full documentation (supplied digitally)

Download Software

Download Software

Anyone can try out this software for free by downloading the latest version from here. A license key is required to save projects, or to load them into a decoder.

User Guide

Download User Guide (PDF)

Download the User Guide for the YouChoos CT SoundProg application here.

Version History

Enhancements and Fixes

View Version History here, for a list of enhancements and bug fixes.

The YouChoos CT SoundProg application provides an easy-to-understand interface for configuration of CT Elektronik sound decoders, including an intuitive design for almost all aspects of the decoder's features - not just sound. Take a look at the screen shots below to get an idea of how powerful and simple this is...

Project details Edit individual CVs DCC loco address
Motor tuning and speed settings Function Outputs Steam sound schedule
Diesel/Electric sound schedule Callable sound effects Sound configuration
Function Key mapping Update decoder Firmware or load sound project

A bit of YouChoos poster art for your enjoyment!