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Just went DCC - locos humming

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  • Member since
    September 2008
  • 15 posts
Just went DCC - locos humming
Posted by PennsyFan34 on Tuesday, May 14, 2013 6:08 PM

I just hooked up Digitrax SEB on my layout, and I suspect I am getting some kind of radio interference. My Bachmann Loco (no sound) hums when I start to increase the speed. My Athearn Genesis loco (with sound), will not respond to my commands, it just sits there and hums very loudly (but the lights come on).

Any help trouble shooting would be much appreciated. Thanks.

  • Member since
    January 2001
  • From: SE Minnesota
  • 6,847 posts
Posted by jrbernier on Tuesday, May 14, 2013 7:00 PM

  OK, a few questions to start with.  Do either of these locomotives have a 'Decoder' installed?  If the model is labeled 'DCC Ready' - There is no decoder.  That 'hum' sort of indicates that there is not decoder installed.  Select address '00' and see if you can make the engine move.  If it does, there is not decoder.  I would not run a decoder-less engine too long on DCC - the motor can overheat.

  If they have decoders installed('DCC on Board' for the Bachmann), and I suspect a sound decoder for the Athearn Genesis, then select address '03' and try them.  '03' is the default decoder address for new decoders.

  Another thing to try - have you enabled DCC track power?  This is done with pressing the 'PWR' button in the lower left corner of the throttle, and then the 'Y/+' button just below the MU button.

Jim

Modeling BNSF  and Milwaukee Road in SW Wisconsin

  • Member since
    September 2008
  • 15 posts
Posted by PennsyFan34 on Tuesday, May 14, 2013 7:20 PM

Ok, I'm embarrassed, the Athearn unit is not dcc, it's only "ready." In my own defense, I bought it, must have been 3 yrs or so ago.

But the humming is still a problem. My Bachmann unit is definitely DCC and responding to my commands at  address 03 (I'm working on my programming track right now).

Does all dcc stuff hum? Kind of sux.

  • Member since
    July 2006
  • 3,312 posts
Posted by locoi1sa on Tuesday, May 14, 2013 7:37 PM

No humming from any of my decoders. It could be the cheaper decoder that Bachmann installed is not a silent drive decoder. Most factory installed decoders are silent drive but there are some especially older ones or entry level types (cheap) are not silent drive and will make noise.

        Pete

 I pray every day I break even, Cause I can really use the money!

 I started with nothing and still have most of it left!

  • Member since
    February 2002
  • From: Reading, PA
  • 30,002 posts
Posted by rrinker on Tuesday, May 14, 2013 7:39 PM

 The cheap Bachmann DCC motor decoder does hum, it's not a 'silent running' type of decoder. Use a quality decoder from TCS or NCE and you won;t have humming.

               --Randy

 


Modeling the Reading Railroad in the 1950's

 

Visit my web site at www.readingeastpenn.com for construction updates, DCC Info, and more.

  • Member since
    September 2008
  • 15 posts
Posted by PennsyFan34 on Tuesday, May 14, 2013 7:43 PM

Ok, thanks everybody. Got to get me some better decoders with sound, too.

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