ConRail #4109, SD80MAC

The following features are programmed into this sound unit:

• 9 different sounds are programmed into this specific sound unit
• diesel idle & high RPM under load
• diesel long idle ramp up/ramp down, to/from the high RPM under load sound
• 2 different horn patterns

  2 short horns for "Safe to Proceed Forward"
  Long-Short-Long-Long crossing horn pattern (10 Seconds long)

• periodic air relief purge sounds
• this engines unique air operated bell at a constant ring rate
  
  Press here for WAV file sound sample: ConRail #4109 SD80MAC