SoundTraxx SoundCar Users Guide - Manual (Page 40)

Tsunami SoundCar User’s Guide Page 36
Automatic grade crossing signal – When enabled, the SoundCar will play
a grade crossing signal (two long horn blasts followed by one short blast and
one more long blast) triggered by a sudden upward spike to the throttle.
Automatic bell – The SoundCar can be programmed to turn the bell on and
off at preset speed points such as may occur when passing through a yard or
station platform.
Automatic sound functions can be enabled as follows: Refer to Table L and
circle the numbers corresponding to the sound effects you would like to
function automatically. Then, add up the circled numbers and program that
value into CV 197 (for analog mode) or CV 198 (for DCC mode).
Table L.
Automatic Sound Function Enable – CV 197 (Analog Mode)
or CV 198 (DCC Mode) Suggested Settings
Automatic Bell Enable 4
Automatic Whistle Signal 2
Automatic Grade Crossing Enable 1
Now, you can set CVs 193‑195 to fine‑tune the operation of each of the
automatic sound functions.
Automatic Bell Set Points
CVs 193 and 194 determine the speed steps (or equivalent throttle voltage
in analog mode) at which the automatic bell turns on and off, respectively.
These CVs can be programmed with any value from 0 to 126, corresponding
to the speed step of the same value. CV 194 must be set to a value greater
than CV 193, or the bell will not turn on.
Example: Set CV 193 to 5 and CV 194 to 10. With these settings, the bell will
initially be off when the train is stopped. As the speed increases, the bell will
turn on once the throttle setting reaches speed step 5. The bell will remain on
as long as the engine is operated between speed steps 5 and 10. Increasing
the throttle beyond speed step 10 or below speed step 5 will turn the bell off.
Once the bell has been turned off, lowering the speed to the same setting as
programmed into CV 193 can turn it back on.
Automatic Grade Crossing Airhorn/Whistle Sensitivity
The automatic grade crossing airhorn/whistle is activated whenever there is
a sudden increase in the throttle setting (or track voltage in analog mode)
as set by the value in CV 195. This CV can be set to any value from 0 to
126, but for practical purposes, you will likely want to use a value from 3 to
10. Setting CV 195 too low will result in the airhorn going off at every speed
increase and setting it too high will require an extreme throttle change to
trigger the sound effect.
A CV 195 setting of 5, for example, requires you to quickly increase the
throttle by at least five speed steps before the airhorn will sound.
Miscellaneous Features