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Digitrax AR1

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12 replies
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  • Member since
    July 2006
  • From: west coast
  • 7,667 posts
Posted by rrebell on Wednesday, July 14, 2021 10:23 AM

Oh it works once adjusted properly but if you enter the zone fast, it will stutter.

  • Member since
    February 2002
  • From: Mpls/St.Paul
  • 13,892 posts
Posted by wjstix on Wednesday, July 14, 2021 10:09 AM

FWIW the only times I've had an AR-1 not work right (once the sensitivity was set properly) it turned out to be my fault - a wire was misconnected or the track wasn't completey gapped etc. Unfortunately, each time it took a while to track down (no pun intended) the problem.

Stix
  • Member since
    July 2006
  • From: west coast
  • 7,667 posts
Posted by rrebell on Sunday, July 11, 2021 9:34 AM

Funny thing I noticed is when I go super slow, no problems.

  • Member since
    July 2006
  • From: west coast
  • 7,667 posts
Posted by rrebell on Friday, July 9, 2021 10:28 PM

Thats what mine dose on occasion. My frog juicers don't do that on turnouts.

  • Member since
    August 2010
  • From: Columbia, IL
  • 394 posts
Posted by wdcrvr on Friday, July 9, 2021 9:07 PM

I have problems with the two AR-1s that are installed as auto reversers on my layout.  Often when a loco goes thru it stall and the layout seems to short out for a second or two and then eventually the loco starts running again.  I am going to try using the adjustment feature that I never really messed with before, but I am also wondering if the fact that the reversing loop starts right at the end of a turnout can cause any problem?

 

  • Member since
    December 2004
  • From: Bedford, MA, USA
  • 21,483 posts
Posted by MisterBeasley on Friday, July 9, 2021 4:05 PM

I have two auto-reversers from DCC Specialties, the old PS-REV modules that preceeded the current PSX-AR.  These are solid state devices, while the AR-1 uses a relay.  I find my auto-reversers are pretty much flawless.  They are about 15 years old.  They worked perfectly when I wired them up and have needed no adjustment since.

It takes an iron man to play with a toy iron horse. 

  • Member since
    July 2006
  • From: west coast
  • 7,667 posts
Posted by rrebell on Friday, July 9, 2021 3:02 PM

hornblower

I have three AR-1's on my layout.  One handles polarity changes for a small yard connected to the layout via a "wye" hence the need for the AR-1.  This unit worked perfectly from day one.  The other two each handle power to two separate turntables.  One works well while the other is a disaster!  My cousin just sent me a couple of AR-1's he had on his layout but replaced with Frog Juicers.  I may try swapping out the problem unit with one of these to see whether I can fix the situation.

 

They recamend the duel for reversing tracks.

  • Member since
    October 2007
  • From: Fullerton, California
  • 1,364 posts
Posted by hornblower on Friday, July 9, 2021 1:10 PM

I have three AR-1's on my layout.  One handles polarity changes for a small yard connected to the layout via a "wye" hence the need for the AR-1.  This unit worked perfectly from day one.  The other two each handle power to two separate turntables.  One works well while the other is a disaster!  My cousin just sent me a couple of AR-1's he had on his layout but replaced with Frog Juicers.  I may try swapping out the problem unit with one of these to see whether I can fix the situation.

Hornblower

  • Member since
    July 2006
  • From: 4610 Metre's North of the Fortyninth on the left coast of Canada
  • 9,352 posts
Posted by BATMAN on Friday, July 9, 2021 11:54 AM

I have had flawless operations from my Digitrax AR-1 for years. Electronics are the weakest part of this hobby for me, but over the years I have read in passing that these suggestions may cause problems. Maybe someone can expand on them.

1. The gaps must be perfectly square across the rails.

2. The gaps may need to be made a little larger (mine are quite large)

3. Turn off DC in the decoder.

How valid these are I don't know, but at least it gives you something.

Brent

"All of the world's problems are the result of the difference between how we think and how the world works."

  • Member since
    July 2006
  • From: west coast
  • 7,667 posts
Posted by rrebell on Friday, July 9, 2021 11:54 AM

No, dual juicer can be used as auto reverser too.

  • Member since
    February 2002
  • From: Mpls/St.Paul
  • 13,892 posts
Posted by wjstix on Friday, July 9, 2021 11:41 AM

So you're using it to change polarity of a frog, rather than as an auto-reverser in a reverse loop?

Stix
  • Member since
    July 2006
  • From: west coast
  • 7,667 posts
Posted by rrebell on Friday, July 9, 2021 10:26 AM

As a side note the AR1 is still not butter smooth and train jerks at times when crossing the gab, any further adjustment it stops working.

  • Member since
    July 2006
  • From: west coast
  • 7,667 posts
Digitrax AR1
Posted by rrebell on Friday, July 9, 2021 10:12 AM

Just installed one and it is a PIA to adjust, just as I was about to give it up I got it to work. That being said I was thinking about getting a dual frog juicer to use instead as I have had no problem with them on switches. What is your imput.

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