The AMD4 is a N-scale drop-in decoder specifically designed for Atlas locomotives. Examples of compatible models include:

Compatible Atlas Models:

• B23-7/B30-7/B36-7
• C628/C630
• Dash8-32BW/Dash8-40B/Dash8-40BW
• DCC-ready RS11
• DCC-ready GP-38, GP-40, GP-40-2
• DCC-ready SD-7, SD-9, SD-35
• DCC-ready U25B and C-420

See the installation pages for a full list of compatible engines!

Key Features of the AMD4 Decoder:

• Back EMF Load Compensation: Provides superior slow speed control and high performance under load.
• Quiet Drive: Super-quiet motor control for "buzz"-free motor performance.
• DC Mode: Automatically detects DC power and allows configuration of lighting effects on DC.
• RailCom®: Enables communication between the decoder and the command station, supporting future feature expansion.
• Variable Momentum: Customize acceleration and deceleration curves to suit your preferences.
• LED Support: No external resistors required when connecting LED's.
• Incandescent Bulb Support: Compatible with 12 Volt bulbs.
• Function Remapping: Use buttons 0 through 12 to control lighting functions.
• Programmable Lighting Effects: Select from 20 separate user-programmable lighting effects.
• Dimmable Brightness: Configure multiple brightness levels for LED's or incandescent bulbs.
• Decoder Lock: Prevent accidental or unwanted programming while the feature is activated.
• Airwire™ Compatible: Fully supports Airwire™ operation.
• User-Loadable Speed Tables: Customize speed curves and set speed limits.

This decoder offers a wide array of advanced features, making it an excellent choice for enhancing the performance and versatility of your Atlas locomotives.