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Tsunami Sound Track and electrical/DCC
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MRH Staff 7,994 posts jeffshultz MRH Staff 7,994 posts
jeffshultz

Okay, I've got several sound equipped locomotives, and have for some time. But, oddly enough, no Tsunami's or Soundtraxx of any sort.

Until tonight.... I bought one last weekend as a "Okay, I survived another Army Reserve Annual Training" self-present.

Okay, now I know what you guys are talking about. That is nice sound. I'm going to have to go in and see what I can do to tweak the others now....

I did get a non-Sound Tsunami (motor control only) a couple of years back at a National Train Show (they were handing them out) and now I'll put it in the locomotive that I'll consist with the one with the Tsunami in it. Hopefully that will make them a breeze to speed match, since they're both Atlas GP38/39/40 mechanisms.

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Jeff Shultz - MRH Technical Assistant
DCC Features Matrix/My blog index
Modeling a fictional GWI shortline combining three separate areas into one freelance-ish railroad.
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Bruce Petrarca Frequent poster 920 posts
Bruce Petrarca

Speed matching

Jeff - Tweak the sound unit until you are happy with it, using DecoderPro. Then copy the file for the non-sound unit, change the address and blast it into the non-sound decoder.

Bruce Petrarca, Mr. DCC; MMR #574
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bapguy54 Regular poster 171 posts
bapguy54

Down load the manual from the

Down load the manual from the Soundtraxx web site. I have 6 diesels with Tsunamis. 1 factory the rest I installed. I like the auto sound features: when the loco starts to move the horn is blown and the bell rings. You set the speed step when the bell starts and ends. I also have brake squeal set up so when the speed of the loco slows down the brakes squeal. I use Decoder Pro to set my own speed curves. Joe 
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herronp Prolific poster 1,847 posts
herronp

Bruce, what a great idea...........!

I had been having a problem getting an O scale 2 motored GE Yoder 44 Tonner to run slowly.  The 2 motors seem to interfere with each other and the BEMF.  When I turn it off, they run smoothly but far too fast on speed step 1.  To slow them down with added BEMF, they start pulsing at different rates resulting in jerky running.  I added a motor control decoder matching the TSU 750 already in the unit and was trying to program them together on the same address.  That was less than successful.  Frustrated after all that work, I set the project aside for a later day.  I had already thought next time I worked on it to program them at a different address and then "Consist" them permanently,  but had NOT thought to do one and then copy the settings to the other!.  Genius!   I see why they call you Dr. DCC!

While on the subject, I'm curious if you've had similar problems with adding DCC to twin motored models and were you able to solve them using 1 decoder?

Thanks,

Peter
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