Hey guy's, I need some input here... I just bought a JR1221x Reciever to put in a jet, and I had a weird time binding... I am Transmitting with a JR 10x w/ 2.4 module and have never had any issues with my DSM2 JR or Spektrum Recievers including a new Specktrum AR9010 which a X reciver. I turn the 1221x on w/ bind plug in, I get the fast blinking lights, Turn on Tx w/ Bind button pushed, the light slow down and then go out. Then one at a time the Satillite's light up solid, and then the RX goes solid ( sometimes). Now all the lights are on but are dimming eratically and at random including the light on the RX. I pull the bind plug. Problem persist and the is a 20 to 30 second delay before the servo's answer. I power everything off, plug in the Data Logger, power everything back up, the light slowly all come on solid, but they randomly have this dimming up and down. Meanwhile I look at the Data logger, and the antenna numbers are running away. One goes to 999 then stops, the other keep climbing until 999 also. However it does not show any holds ???? !!! Powered by 6.0v NiCad on the bench. I have never seen this before. I know the X series are supposed to be backwards compatible with DSM2, but I'm wondering if the Module Based application is different than True 2.4 Transmitter.... Any Ideas ????... Could it be a bad reciever ut of the box ????


TIA !!!!!

Danno

Feel free to call me too !!!!....( Dr. Redman, your needed in Surgery !!!!! )

512.650.3110

Make sure you don't use the older receivers (non x ) with the new 12dsmx, they won't talk to them. It must be the newer style receivers (x). I doubt you did but never hurts to ask.

Kelly,

I'm not... I am useing a 10x Transmitter w/ a DSM2 Module in it... The Modules are not upgradable to the X... The DSM2 TX I'm useing should talk to the1221x Reciever but in the DSM2 protocol.... Something ain't right....[&o] Thanks for the thought though, I'm lost on this...

Danno

Hi Danno,

Any chance that one or more of the remote rxs are DSM2?

Just a thought

Ad

AFAIK the DSMX rx's dont work with DSM2 TX... DSM2 RX is supposed to work with DSMX TX, until the recall proved some issues...
Could be wrong.

You made me go look !!!!!! I would have never cosidered it !!!! They are however all maked X including the Rx... On that thought, are the wires any different than DSM2 ???? I used the ones that came with it, but I try anything at this point !!!! .. Thanks Ad !!

Dan

Hey Dan
Ad put it better than I did, that is what I meant to say
We have not had an issue with getting a bind using the bind plug like you do on the first setup. At the field we have noticed after a good flight that sometimes it may not want to bind maybe 3 of 4 times out of 10 attempts the model just sits there like the TX was never turned on, lights blinking and so on. Back home in the shop no problem. Now we don't have many guys flying at any given time, maybe just a couple others on but that's it. Maybe we have some nasty signals going on at our field that the new dsmx does not like?? This is with the 12x sent in for the upgrade to dsmx and a new dsmx 1224 rec. A123's about as good a setup as you could ask. But why it does this is beyond us. Made sure that the Tx was not to close and range checks are good.
Anyone else have this issue??

Danno,

I 'm scratching my head as well.

The wires to the sat. Rxs are the same in both X/DSM2. It is my understanding, as you and others have stated, you can use a DSM2 Transmitter with a new X reciever. Likewise you are supposed to be able to use the new X Transmitter with the older DSM2 reciever.

What you can"t do is use the DSM2 remote recievers with a new X reciever like your 1221 and vice versa. You have already checked that and you are OK.

As Olnico suggested in another thread, check the connections of all the little remote reciever extensions. Also check the fit of your Transmitter module into your transmitter. If your module has the external signal wire I'd check it's integrity and a tight connection. I have a buddy who started getting crazy numbers on his logger and sent his system in for a check-up. Turned out to be an intermittant connection in the module itself. Believing in his logger saved his plane.

Ad

Kelly,

Sorry to repeat your infoI am just toooooo slow on the key board and didn"t see your post Bud.

Ad

After it starts talking to the RX and the servo's are working, the range check is fine. However I don't understand the long delay for the TX & RX to see each other and why are all the lights dimming/brightening randomly and the datalogger looking like a digital stopwatch counting up antenna glitches til it stops at 999.... I took it on out to the flying field and range checked it and flew it for about 10 minuites in and Big Stick, no problems what so ever... Landed and checked the logger and it was maxed out with no holds.... I just don't trust it... What's the next step ????


Danno Help me, I've fallen and I can't get up !!!!!!!

Intresting new twist !!!!! On the possibility that there may be issues with Module based transmitters ( 10x in my case ) with the 2.4 module, I retested again with the same results. I then got my Specktrum DX6i Transmitter ( which is DSM2 only ) and bound it to my new JR1221x reciever and it bound up normal as can be !!!!!! All reciver lights are solid and bright, no hits on any antenna's showing on the data logger, working normal. I powered it up several times, solid as a rock. Went back and binded with the 10x, and same problems.... dimming/brightening antenna lights, runaway numbers on the data logger. That combination is not stable. Went back to the DX61, perfect.... I don't understand.... There must be something about the 2.4 module system that does not like the new JR X recievers..... Calling Tech Support in the morning, see what they say. Maybe I just discovered Radium or something !!!!! .. Any ideas on this ????

Thanks guys !!!!

Danno

I hear faint but yet clearly discernible disaster-like music........

Kelly,
I believe the recall centered around the 5,6,7,8ch powersafe rx not the 1221. I have had no trouble running the 1221 and 9100,9000dsm2 rx with my 11x dsmx tx.
Vin...

Vin,

I see what you are saying, but that is not my situation.. I am going from DSM2 Module transmitter to a JR X reciever. You are going from an X transmitter to a DSM2 reciever.... I'm going to try a non-updated 12x Transmitter ( DSM2 only ) tomorrow to this 1221x reciever and see what happens.. I'll keep ya posted !!!!


Danno

Hi All,

I could not get my aircraft to bind the other night when I first powered-up my DSMX setup (9310 Rx). Turned out my satellites were not plugged in (dough!). After that it worked great and had an amazing range check and can't wait to fly it. Note this setup is in a Supra sailplane with very tight internal volume to work with. I am using an 11X. Perhaps you could try replacing the satellite wires, maybe just use the short ones and see if that helps, then go back to what you may need. It would be inetesting to know what tech support had to say. Just a note here but I have been using another DSMX setup in "X" mode as well as "2" mode to compare the two without any problems. I have a 9503 I use for "2" mode.

Thanks, Josh.
Team Horizon

look this compatibility table DSM2-DSMX