I have a Spektrum DM 9 2.4 gig conversion module that I used to use on my JR 10x TX. I have not used it probably 12 or 15 years but might have a need to use it now. I cant find the instructions (dog ate my homework ) . I tried to bind to a AR 7000 rx with no luck a little bit ago. I really don't recall the procedure, I tried to do as I do with my JR12x and same or similar rx with no luck.

Anybody out there recall how to bind? I see that there is an orange light in the module that flashes very briefly when first turned on but is not coming back on except by turning the TX off and then back on.

HELP !!

Turn off Txer, Install bind plug in RXer, Turn on Rxer. The bind LED in the RXer should flash rapidly on and off. Then place Txer in Bind mode. The system should bind.

I may not have done a good enough job describing what it is im doing. The Tx I am using is an old 72mhz JR 10s. To make it into 2.4 gig you remove the 72mhz rf module and install the Spektrum 2.4 model and a 2.4gig antenna. Since this is a 20 plus year old TX and was built and sold on 72mhz there is no"bind" option in the menus. I assumed that the way to bind it is exactly the way a 2.4 gig JR tx and rx is done. Install rx bind plug, power up rx and then while holding down the bind button on rf module you power the tx on and it goes into bind. That is what I tried with no luck. I just don't know what else to try. I will make another search for the intructions and absent finding them or someone on here helping me I will call Spektrum in the morning.

Some times with the older stuff, I had to hold the bind button for about 3 seconds and then let it up. Now days, once the Txer says "Binding" I let the button up.

Also, Make sure you get a few feet away from the Rxer with Txer. you can "swamp" the Rxer with to much Txer signal. I usually put myself between the two.

But, if you are not seeing a repeated flashing from the LED on the Rxer, the Rxer is not going into bind mode.

I found the instructions. I was doing the bind procedure correctly. I tried it again and held it for 30 seconds. No luck. And yes the rx lights are flashing. I tired the same 2.4gig module in two different tx with two different rx. No luck. I will try again and stand further away. Its looking like my conversion module is not working.

I tried standing further away. Still no luck.

Just some thoughts that I would be considering at your stage:

Given that this is in the RC Jets forum, I assume you are looking at using the AR7000 in a jet. If I was even beginning to suspect the TXer's modules, at this point, I would not use them with any plane that I valued w/o checking the RF output. If this was me, unless I had access to RF Test gear, I would be sending the module and transmitter back in for service and testing. But I am not sure where you would send a JR for service, and I would bet the service provider is not free like Spektrum is typically for their transmitters. A new DX9 is not that expensive. It certainly is a lot cheaper than losing a jet, and it brings you up to current technology.

When I look at another brand, I consider how much their Rxers are. In my case, to change brands, I would have several times more than the cost of the Txer in new receivers. In other cases, the Txers are just outrageously priced to start with! So I don't even consider switching brands. Also, I have never had a Spektrum Txer of Rxer failure either. Knock on wood!

In most cases a DX9 is all most pilots need. But, if I was looking at eventually using more than 9 channels, then I would have to jump up to a DX 20 or some other brand. At the very least, a DX Txer does not depend on a module and its connections and conversion program to be successful. I had a friend who claims to have lost a jet due to an intermittent JR module connection. Also, a lot of the new stuff is coming out with 11ms frame rates. Does that JR Module support an 11ms frame rate? Lots of benefits to staying reasonably within current technology. Just don't buy the first production run of any brand, unless you are willing to be the "beta tester." Also got to watch out for products where they are constantly up grading their program and/or hardware. They do that for a reason (e.g. Fix their issues and get more $s from you.) If they are just adding new features to the program with software revisions, then that can be a good thing.

Just some things I would be considering at your stage of the game.

Thanks Len. No.... I am not and would not use this rx in a jet except maybe a small foamy ducted fan. I don't why I put it on the jet forum. I guess because I don't monitor other forums and because I respect the opinions and level of intellect and experience level of the jet community in general. In my jets I only use top of the line JR and Spektrum rx's. with my JR 12x tx. I will do some more experimenting and diagnosis today to try to determine where the problem is. Im pretty sure it is in the tx rf module. I am trying to get this to work for a little foamy prop plane.

Can you explain to me the advantage of 11ms frame rates vs what......22ms . Is my old JR stuff 22ms ? I guess a 22ms refreshes half as often as a 11ms ??

A lot of the new Spektrum Rxers are set up for 11ms. The only real benefit I see is to support the faster digital servos. Some of the literature with some of the new toys state that you have to have a Txer capable of 11ms. But, I find that most of my setups wind up and still operate on a 22ms frame rate. Not sure I have ever actually seen/experienced a visable improvement made by a11ms framerate, … yet.

I would suspect that the JR is 22ms. I don't use JR. When I got started in RC I tried several brands. Wound up as a spotter for Jet Guys for a while and most of them with new stuff had Spektrum. So, I settled there. Since that time I added about 30 planes to the fleet, several helis and lots of drones and never looked back at changing brands. I have eyeballed trying Jeti. But, for me, it is outrageously expensive, and we have a pilot here who has tried it and after a year still has not brought it to the field. It takes a long time and lots of exposure to some of the manufacturers' pilots to learn all the ins and outs of a particular brand. Once I got fairly well versed in Spektrum, I did not want to start over with a new brand. And, … I still learn new Spektrum stuff every time I get with other very experienced pilots. Typically, I go by: If it ain't broke, don't try to fix it.

Head on over to RCGroups Radio forum and post your question there. Lots more traffic, lots of guys who are pretty sharp and a Spektrum Engineer named Andy Kunz is on there quite a bit answering questions.

ok. Will do. thanks

Ok. Problem solved. I was sitting here and it hit me. I'm surprised nobody else figured it out. Usually the guys on here are way smarter than me. The tx Im using are old old JR 10x. probably 20 or more years old. actually might be closer to 30 years old. So here is the clue you need to figure this out. These tx's are PCM and PPM selectable. Yep, you guessed it, PPM needs to selected. I selected PPM and it bound to the rx in no time. Didn't have to go stand 10 feet away, or hold a diving rod and face the East. Just do as instructed in the manual. Yesterday when I consulted the manual I went straight to page 17...Binding instructions. No where there does it say to be in PPM. It does say that back on page 5 under Important Information. It would be nice if it said it BOTH places.

So, thanks for the replies.