Mismatched decoders

Yeah, I do my own momentum… So I basically set it at zero. I also set the BEMF to zero. Some of my steamers go haywire with some BEMF. I should add that BEMF is not useful on my layout as I have zero inclines.

Simon

BEMF can also cause trouble with ‘bucking’. Say you have a two-engine consist and both engines have Back EMF. If the first engine starts trying to move just before the other one, it will ramp up power thinking it’s trying to pull a really heavy train. The second engine then reads that like it’s going downhill, and will try to slow down…causing the first engine to apply even more power.

As far as speed-matching methods, what I do is use a “golden engine” and match all my engines to it. I put the engine I want to speed match as the lead engine in a consist with the golden engine, then use CV5 to adjust the new engine so it’s running speed matches the golden engine at all speed ranges. Then I use CV3 and 4 so the new engine starts and stops along with the golden one. I usually only use CV2 if an engine is a little ‘stiff’ and has a long starting delay that needs to be corrected. Since I only use straight-line speeds I usually don’t use CV6.

Since I have a bunch of P1K C Liners I’d like to put decoders into can you post which Loksound decoder you put into the A unit and how did you get the FM 16 44 sound files for it?

What speaker did you fit and where did you find space?

I could only find the boxes for two of the three Loksound 5 decoders I bought last year. My memory is that all three were the 58821 Loksound 5 decoder with different sounds preprogrammed for eacy. Below is are the labels that was on the one box.

Label 1

58821

Loksound 5 DCC Direct

Ready for Programming

Label 2

Baldwin 608A

S0580

The second label told me which loco the decoder was programmed for since I ordered decoders for 3 different locos at the same time.

They were delivered with the the sound preprogrammed. If I remember right, I ordered these from Tony’s Train Xchange. I’d have to go back through my emails from a year ago to confirm that. I used twin sugar cube speakers which were recommended when I ordered the decoder. I don’t recall that finding space for them was difficult.

If this did come from Tony’s (and I’m 90% sure it was), I’m sure they can tell you anything else you would need to know. They were very helpful with me.

Many thanks. I have eight of these and only one B unit has an ESU motor only decoder installed. I’d love to fit sound also, at least to the A units.

I found the year old thread where you posted your original experience.

http://cs.trains.com/mrr/f/744/t/282200.aspx

I’m a cold weather modeler so I am only modeling half the year. I have a hard time remembering what I wrote the previous year. Now I’m a little confused about the labels on the Loksound boxes I found. I see now that I did order the Loksound for both C-Liners and after I fried the one decoder I decided to go with a basic decoder for the second, hence the mismatch problem. I’m a little confused by the labels on the boxes now. I’m wondering why Tony’s labeled the one as a Baldwin when the C-Liner is a Fairbanks-Morse. I can’t think of any Baldwin diesels in my fleet so I think that is the one they sent me for the C-Liners. The other box I found was for an Alco and that was for one of my RS-1s.

Unfortunately, the only FM sound Loksound has right now is a 38D-6 from the H12-44. No 8, 10, or 12 cylinder versions for the C-liners or other FM locos. I want to swap out the QSI in my Trainmaster, but until thy get a recording of a correct sound, nope.

–Randy

Both of my Atlas TrainMasters have Loksound decoders that I downloaded with the sound project for the Atlas H-15-44/H-16-44. If/when they come out with a true TrainMaster project I’ll load that on there, but for now I’m quite happy with the sound. (Please scroll down a ways after you click on the link.)

http://projects.esu.eu/projectoverviews/6?page=4&count=10&order=date&type=diesel&country=us&cat=6

Rapido says they will build FM H16 44 and no doubt those will come with Loksound. I wonder if the C Liner in Nelson can run its engine? There’s a Trainmaster there also that was operational last time it moved. Recordings to be made?

Ignorance is bliss. I have no idea what any of the first generation diesels sounded like so they all seem authentic to me.

I’ve ridden behind several first and second gen diesels, and observed others (not when they were in their prime - I’m not quite that old) and I’ve had cab rides in second gen diesels. Lucky there are lots of tourist lines to visit not far from me. While blindfolded I probably couldn’t really tell a 567 from a 645, I can definitely tell the difference between an EMD and an Alco. Never heard a working FM or Baldwin in person, but I have seen sound films and video of at least Baldwins working, so I know what they sound like.

Even if they don’t have the exact sound - just lookign at two vastly different locos from different builders, you would have to think they must sound somewhat different, so loading a standard EMD sound onto every loco you have, be it an EMD, Alco, FM, or whatever, wouldn’t even be close to a good illusion. For those that don’t know, if the Alcos which look different have a different sound than ther EMDs, even if neither is truly the correct sound, at least that retains the illusion that they indeed are different locos. And in the case of some Alcos and Baldwins, you might be able to get away with saying they were EMD repowers…

–Randy

Since I only hear one at a time, it’s wouldn’t be real obvious even if they did sound the same. However the C-Liner with the sound decoder defintely has a different sound than the Alcos or the EMDs. Most of my diesel fleet are EMD E and F units. My Alcos are a mix of RS1s and RS3s but I only have sound in the one Alco at this time. As I said earlier, it’s not that important to me if the sounds are authentic or not simply because I don’t know what is and is not correct. As long as my diesels go beep and my steamers whistle and the steamers have synchronized chuff, that’s as realistic as I need it to be. I’ll leave it to others to fret over whether their locos have the correct sounds.

So it seems Baldwin used 4 stroke diesels which would definitely have sounded different to two strokes.

Looks like Alco used 4 strokes also.

The FM engines were opposed piston valveless two strokes.

Later EMD were valved two strokes.

These should all have different sound files if you’re interested in DCC sound effects.

EMDs were all valved 2 stroke (exhaust valves only) until the 265/1010 series 4-stroke on the SD90MAC and SD70ACe.

Another big difference with Baldwins is that many used a stepless air throttle - so no set of 8 distinct notches.

A real recording of a running big FM diesel would be great - perhaps look to marine sources if a suitable locomotive is not available. At least one manufacturer’s pre-567 EMC is recorded from a tugboat which had the perhaps the last operating Winton diesels.

One of the reasons I use Loksound is because of they do go out and grab an actual loco where a stand-in was previously used, I can swap it in without taking apart the model or removing anything. Theoretically this capability is coming to WOWSound at some point, but Soundtraxx seems firmly in the “you get what you get” camp.

–Randy