Decorder Speed MAtching

Model Railroader Electronics and DCC
1

I purchased a Lifielike P2K Alco FA-1 and FB-1 units that were DDC ready and wanted to add sound. I purchased a LokSound Select unit which is in the B unit as there was more room for the speakers and an NCED15SRP decorder which is in the A unit. My problem is derailments with the A unit when they are running together. It appeares the B unit is more sensitive,starts sooner then the A unit and appears to be running faster when they are operated together and are not coupled. Ie, the B unit is pushing the A unit. when together.

My questions:

  1. Can these two decoders be speed matched?

  2. If not do I have to put a LokSound unit in the A without the speakers.

Thanks for your help.

2

You should be able to speed match them. There have been multiple threads on how to do this…

Jim

3

You can probably tweak them good enough, mainly by working on the motor controls in the non-sound unit. It might be easier though to get a good BEMF decoder for it, since the Loksound has excellent BEMF. You do not need to use a Loksound without speakers - ESU has Lokpilot which are the same as Loksound without the sound, if you want to exactly match the hardware, but this is probably not necessary.

–Randy