All Digitrax decoders are rated for at least 1 amp for robust operation and long-term reliability. Available in a variety of shapes and sizes to fit in almost any locomotive, Digitrax offers both traditional wired decoders as well as plug n play decoders that make installation a snap.

    Digitrax decoders feature variable frequency Supersonic(TM) motor drive for quiet motor operation. They support all DCC standard programming methods. One-step decoder factory reset makes it easy to troubleshoot decoders. Motor isolation protection protects your investment in locos and decoders. Digitrax decoders support both two and four digit addressing and basic, advanced and universal consisting. They also have operations mode read-back capability so you can read back programming information while the decoder is on the main line.

    Digitrax decoders are DCC compatible and can be used with any DCC compatible system.

    For HO applications, most modern high efficiency can motors draw less than 1/2 amp when running and less than 1 amp when stalled at 12V DC. These motors are suitable for use with 1.5 amp (DH163, DH121, DH150 plug n'play decoders), or 1 amp (DN142, DN121, or DZ143) decoders.

Note: Some older HO motor designs (older Athearn open frame motors, Pittman motors, etc.) may exceed the 1.0 amp limit and you may need to use a 1.5 amp. 2.0 amp or other higher current decoder such as the 3.0 amp DG380L in these applications.

Basic Digitrax Decoder Recommended - HO-scale:

• Athearn – Regular Diesels

The DH123AT is an HO Scale Mobile Decoder with Digitrax Easy Connect harness. It features 1.5 Amp/2 Amp Peak and 2 FX3 Functions, 0.5 Amp. This decoder fits many Athearn locomotives.

Features:

• Torque Compensation for smooth as silk silent operation.
• 128 Speed Step operation (14 or 28 steps can also be used).
• Momentum with acceleration and deceleration.
• Normal Direction of Travel is user selectable.
• Switching Speed feature for easier and faster access to yard speeds.
• 3 Step Speed Tables set start, mid and max voltage for custom control.
• 28 Step Speed Tables with 256 level resolution for precise control.
• SuperSonic motor drive for silent operation.
• FX3 Function outputs for prototypical lighting effects and on/off control:
• Constant Brightness Lighting with directional or independent control.
• Realistic Effects like Ditch lights, Mars lights, strobes, and many more.
• FX3 & Standard Function Qualifiers operate functions based on direction,
• F0 on or off, direction and F0, and whether loco is moving.
• Function Remapping of 14 functions for custom function setup.
• Master Light Switch turns off all lights & functions with one keystroke.
• Plug ‘N Play design makes installation quick and easy
• Transponder ID Equipped ready for transponding on your Layout
• Compatible with digital surround sound systems
• All Mode Programming
• Decoder Reset CV with or without speed table reset.
• Motor Isolation Protection helps prevent damage to your decoder.
• Basic, Advanced & UniVersal Consisting
• 2 Digit and 4 Digit Addressing

Product Manual PDF

DH163AT HO Scale Mobile Decoder

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