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QUOTE (ebaykal @ 4 Sep 2007, 08:18) <{POST_SNAPBACK}>Problem: At very low speeds the loco jerks. Help.
Baykal,

Presumably it was a smooth low speed performer on DC? If so, take a read through the decoder manual to see what adjustments are available, and then experiment with setting the relevant configuration variables (CV) to improve performance. Sometimes minor adjustments to starting voltage and the mid speed curve value may be all that is required; but another loco may need back EMF sampling, motor duty cycle and frequency values adjusted. Probably worth a look on both Roco and ESU's websites for any specific advice for your combination of decoder and motor type.

 

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QUOTE (ebaykal @ 5 Sep 2007, 12:04) <{POST_SNAPBACK}>Ooo this a beautiful piece of machinery and the things it is capable to do is stunning. Still have a lot to learn.
Maybe you will end up as I did. After fitting the first dozen locos with decoders, I decided to practice with the controller until 'everything' about using it became second nature. Eleven months later I have done much less 'modelling' (unless taking loco bodies off to install decoders counts as such) and much more driving. It is just so much fun.