another thought, i was unlucky enough to get a DB150 that was out of phase inside, reversed outputs or something like. anyways, my DT100R and UR91 worked perfectly well on my older chief sysyem, but plug the UR91 into the DB150 ( new empire builder ) and nothing would work, the light flashed on the UR91 showing it could see the signal from the DT100R. i made up a crossover loconet cable and TA DAA, using the crossover cable let the UR91 work with the out of phase DB150, but would not when tried on the Chief work with that anymore. this is what led me to discover that the DB150 was out of phase. anyway, if you can make up a crossover cable to put between the UR91 and your command station, it may then work if your command station is out of phase, i don't know whether it was just DB150's that had the phase issue or whether DCS units also had the same 'fault'??
It sure seems like you must have gotten a DT402D instead of a DT402R. 7 times back to Digitrax makes me think that. But, is Digitrax saying it is a DT402R? They surely would have told you it was a DT402D if you sent it back 7 times. I would be interested to know what you found out. Let us know. I have both UR91 and UR92 and they both work fine. I have old DT100R's, DT400R's, and DT402D's that I use no problems unless I have a mental lapse. LOL. PW
Just remember if you bring the Duplex to the club you will have to use it tethered if they don't have a UR92.
Springfield PA
Last nicght was the first time using a 402r worked great with the UR91's we have. I am thinking of getting a Duplex for myself. At my club I'm the only one interested in Duplex . I'll be using it my personal layout when I purchase my new system.
NickyB
If you have the DT402D you'll love it once you get the UR92. I just donated one to the club I belong to so I can use mine.
Only the DT402D has to join the duplex radio group, You do NOT need to plug in to do this, but it is faster and more reliable to simply plug it in briefly. It does NOT have to be plugged in while the command station is started, you can plug in a join the duplex group at any time.
The DT402R has to plug in to get the Loconet ID, but since you have to plug in to aquire a loco anyway, that's taken care of.
--Randy
Modeling the Reading Railroad in the 1950's
Visit my web site at www.readingeastpenn.com for construction updates, DCC Info, and more.
is the new 402R on the right channel? you have to plug them into the command station or something or other to make sure they use the right channel for the system in use. it may be that the hand held just isn't paired to the command station?? ( the UR91 receiver really ). i'm not sure but does the 402R have to be plugged in at boot up of the command station to acquire the correct channel??? also does the 402R actually have its radio ON in the options for the unit?? i believe the radio can be disabled if you want with some OP's switch or something on the handheld??
Thanks Randy I am not an electrical guy but I am learning. 2.4ghz wow.
Thank You very much Thats what I thought but was not sure. I'll pass it on to my train buddies at the club.
Sounds like you got a DT402D and not a DT402R. No where does it say you need a UR92 with a DT402R, and anyone who posted to the Yahoo group to the contrary was wrong.
DT402: Plug in, or IR simplex with a UR90 or UR91 or UR92
DT402R: Plug in, Radio Simplex with UR91, IR simplex with UR90, UR91, UR92.
DT402D: Plug in, Radio Duplex with UR92. IR Simplex with IR90, UR91, UR92.
All throttles with an R (DT100R, DT300R, DT400R, DT402R, UT4R) use 913Mhz and work in radio mode ONLY with a UR91
All throttles with a D (DT402D, UT4D) use 2.4GHz and work in radio mode ONLY with a UR92.
nickybFound out that you need the UR92 to use the DT402r
I might be explaining this wrong. Sometimes we all have brain farts. Our clubs UR91 works great. But since we can't buy DT400r anymore we tried a DT402r and had pblems like it not registering the loco, radio not working at all. We then sent this to Digitrax to fix. still had the problem. I then started doing some research. Found out that you need the UR92 to use the DT402r. I am obviously confused by this. Others say their layouts work great with the control. Why wouldn't the one we purchase not work with our layout. All the UR91's work great obviously because the DT400's work fine. I'm in the process of purchasing a empire builder with the new products wonder if I'll have problems with the clubs layout.
I have used my Digitrax simplex radio system (UR91) for over ten years without any problems. My set came with a DT100R. I later added a DT300R and DT400R. They have all worked great, right out of the box. I have since upgraded my DT400R to a DT402D, however my simplex radio (UR91) and duplex radio (UR92) work great at the same time.
Make sure that your UR91 has a power supply. You can operate one without a power supply but the range will be significantly reduced.
Make sure you have a good battery. DT400 throttles eat battery power. If the battery voltage drops below 7v the throttle will not work. I use POWERX rechargable batteries.
Jim, Modeling the Kansas City Southern Lines in HO scale.
The DT402R is the follow-on product to the DT400R(the DT400 is no longer made). It will work in radio simplex mode with the UR91 Receiver panel or just plugged into a UP5 panel. What kind of problems did you have. The DT402R must be plugged into a UP5 or UR91 port to acquire a locomotive. Once you have the loco, you can unplug as long has you have a fresh battery in the DT402R.
Does the club have a UR91 Radio Receiver panel, or are you just plugging the DT402R into a UP5 panel port? It should work fine as a 'tethered' throttle(with a rather short cord).
Jim
Modeling BNSF and Milwaukee Road in SW Wisconsin
Sorry Gentlemen Long Day today. We have UR91's but no UR92. We kinda figured this.
What do you mean by it did not work? You need a UR91 radio receiver to work with the DT400R and DT402R. If you have neither of these, the DT400/402R will only work plugged in.
If they get a DT402D you need a UR92 duplex radio transceiver for it to work. The DT402D will not work with a UR91.
We had a discussion at our club regarding if the DT402r will work on our layout or not. Last year we had a member buy one and it didn't work at all no matter what digitrax did. We sent it back 7 x. Now we have a new member wanting to purchase a throttle to use on the clubs layout. He tried to find a DT400 and failed. He then purchased a DT402r. What should we expect? Also, Has anyone else had this trouble and if did what did you do to fix it?. Our clubs layout has UR91's and does not have a UR92 yet. Do you need a UR92 to use the DT402r?