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For the past couple weeks, my local train club has been trying to get DCS working on their O-Gauge layout. The layout consist of three concentric loops on a 18' x 7' table. The track is MTH RealTrax.

The problem seems to appear within the communication between the remote and TIU. If we have the remote directly above the TIU or within a foot of it, communication seems to be great! But if we try walking a few feet away from it, we can't get our remote to communicate with the TIU. I've tried hooking up a telephone cor d between the remote and TIU, but really didn't see any improvement. One of the members at the club said he put new batteries in the remote right before Christmas, so I doubt if it is issue with the batteries.A few times I received the message "TIU Error", which I have never seen before. I have thought about bringing in my DCS system and swapping out the remotes, then the TIU, and see if that makes a difference.

There is a DCC system operating in the adjoining room, could that have any affect on the DCS system?
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Nick,
MTH builds RealTrax, Lionel builds FasTrack, I believe you are trying to say your layout is Lionel FasTrack. Your idea of swapping out the DCS package is a good one, you might have a damaged TIU or Remote hand held. Give your idea a try. Further if you are retro fitting a DCS unit to your layout, make sure you have 10 Amp breakers between your older transformers and the TIU.
PCRR/Dave
I would also look at the batteries anyway. If they are not alkaline / heavy duty batteries they will go dead fast.
They also may need replaced even if changed recently and of proper type - you can get a bad battery

Now, since hooking up the cord between handheld and TIU did not seem to help, I suspect the problem is in one of the units, (It could still be the batteries) so your plan to swap out with your units will help determine the problem.
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