All Broadway Limited "Paragon 2" locomotives and Blueline Locomotives manufactured after October 2008 (including some USRA Mikados) will respond to the NMRA analog horn commands. This means the whistle pitch can be shifted or "quilled" to produce a very unique and realistic sounding whistle. Digitrax DT400 and NCE Procab throttles are compatible with this feature, but the feature must be enabled.
To enable the quillable analog horn function using the Digitrax DT400.
Press the "OPTN" button, then press "enter" twice. The display should read "Option 3=XXX", where xxx is a number, x01 for example. Add 80 to that value by spinning the right throttle, to make it x81. Press "Exit".
The horn button is now pressure sensitive and will change the horn sound depending on how hard the button is pressed. Notice that the bar graph on the display now shows how hard the button is being pressed.
To enable the quillable analog horn function using the NCE Procab.
NOTE: The NCE system must have software dated March 2007 or later. To check, press "Prog" until "Set CMD Station" is displayed. Press "Enter". The software date will show. If you need to update, NCE will send a new chip to install in the system.
To enable, press "Prog" until "SET CAB PARAMS" is displayed. Press enter repeatedly until "ANALOG HORN CHANNEL" is displayed. Press "127, then "ENTER".
Press Enter until ANALOG BIAS is shown. Press 8, then ENTER. Press ESC.
Now, while pressing the horn button, the pitch can be changed by turning the throttle.
Bob Grubba