Loksound decoder problem in Bachmann On30 rail truck

[prompter]

I just installed the Loksound decoder (Goose sound) in the Bachmann On30 Rail Truck. I just unpluged the stock decoder and plugged in the Loksound. The
sound is great, but speed control is erratic. When I first increas the
speed to 1, there is a short delay then a speed spurt before slowing
down. On stop, the rail truck slows, then there is another short speed
spurt before coming to a stop.

I seem to recall something about capacitors and coils for RFI on the
Bachmann DCC boards. There appear to be two coils and one or two
capacitors.

Help anyone?

Thanks,
Chuck.

[dacort]

If you're comfortable with a soldering iron you could just snip the plug from the Loksound wiring harness, ditch the Bachmann board, and hardwire the decoder in place. I did this with a Spectrum 4-6-0 with satisfactory results. None of the stuff on the Bachmann board is necessary for DCC. I have heard some people recommend to cut the capacitors, but I haven't tried this. Getting rid of the Bachmann board also makes more room for the decoder and speaker.

I have several Loksound units now and the motor control is usually superb.