Steam Q1a Operation Manual Rev 4.1.2 15/24 24 August 2006
Mute (F8)
The Quantum System allows you to reduce the System Volume to a lower level or increase it back to its original setting using the F8 function
key. This capability is useful when you need to reduce the sound to engage in a conversation or to answer the phone. If you have many
trains operating at once, you can reduce the volume on all those that are running in the background of the layout and increase the volume
of the closest locomotive. The Mute feature changes the sound gradually over a second or two, which allows the sound to increase or
decrease realistically as the locomotive approaches or recedes from the observer.
• Press the F8 key in Neutral or Forward/Reverse to gradually decrease or increase the locomotive’s volume.
Note: Mute state is not maintained if power is turned off and then turned back on; the locomotive will return to full system volume setting.
Note: Mute Volume can be programmed in CV 51.1.
Heavy Load (F9)
Heavy Load is applied while the train is moving; it maintains the train at a steady speed while allowing you to have control over the sound
effects of a working locomotive. Under Heavy Load, changing the throttle will have little affect on the locomotive’s speed
. Instead you use
the throttle to control a steam locomotive’s laboring Sound-of-Power effects. When you approach a grade under Heavy Load, increase the
throttle and hear the locomotive work hard with heavy laboring sounds. When the locomotive goes down a grade, reduce the throttle to
diminish the locomotive’s laboring sounds. You control how hard the locomotive works by how much the throttle is increased or decreased
from its initial position (where Heavy Load was turned on).
• Press F9 and hear one short hoot when Heavy Load is turned on
• Press F9 and hear two short hoots when Heavy Load is turned off.
You can apply Heavy Load as soon as you start moving or wait until you are up to speed.
Note: Return the throttle to its initial setting (where Heavy Load was turned on) to avoid acceleration or deceleration when Heavy Load is turned off.
Note: Heavy Load can only be turned on or off in Forward or Reverse. If turned on, it will remain on in Neutral. If you want it off when you start out from
Neutral, immediately do so when the throttle is turned up.
Note: Heavy Load is automatically turned off when track power is turned off.
Note: Heavy Load represents a train that would take over ten minutes to accelerate to full speed or to bring to a complete stop. It is independent
of any
inertia (or momentum) values set in CV3, 4, 23, or 24. .
Note: Under RTC and Heavy Load, grades, voltage changes, tight curves or other real loading effects, will have little effect on the speed of the train. Under
STC
and Heavy Load, grades, loading, etc. will affect the train speed as it moves around the layout.
Status (F10)
The Quantum System provides verbal information about the locomotive’s current operating state when the locomotive is in Neutral or the
locomotive’s current speed in scale miles per hour when the locomotive is moving.
• Press the F10 key in Neutral; the locomotive will verbally report its currently enabled long or short DCC address followed by its consist
ID (if it has one), followed by its Shut Down state, if any (Disconnect, Standby or Shut Down).
• Press the F10 key when moving; the locomotive will verbally report the locomotive’s speed in scale miles per hour (smph) or in scale
kilometers per hour (skph)
34
.
Note: When Status Report (or Verbal Speedometer Readout) is activated, the locomotive’s sounds will reduce to one half their current volume settings
during the verbal report. Locomotive sounds return to normal volume when the report has ended.
Note: In a consist, all locomotives will simultaneously report their status when the F10 key is pressed unless disabled in CV 22.
Note: Status in Forward and Reverse can be configured to also report the Back EMF value and/or motor Pulse Width Modulation (PWM) value. See CV 55,
QSI Feature Configuration in the Quantum DCC Reference Manual, version 4.
Horn (F11)
Some prototype steam locomotives had both a steam whistle and an air horn. The whistles worked best in areas where it was necessary for
the sound to carry a long way, while the horn was more useful in the city or fogy areas where it was easier to tell the location of the
locomotive by its higher pitched sound.
• Press the F11 key to alternate between Horn and Whistle. Hear a short hoot of either the Horn or Whistle to indicate which one has
been selected. Whichever is selected, either the Horn or Whistle, it is controlled by the horn button (F2).
Note: The feedback hoots can be disabled/enabled in CV51.2.
Function Key Operation in Neutral
Some function keys used in Forward and Reverse will have different effects when used in Neutral:
• The F7 key produces Squealing Brake Sounds or applies brakes for a moving locomotive but produces a Long Air Let-off in Neutral.
34 Scale speed report can be programmed to announce in smph or skph under DCC in CV56.0, which will apply to both DC Analog and DCC operation.
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