Actual Field Results - Spektrum 2.4Ghz Modules

[Rocket Man]

Will your transmitter with the Spektrum module allow you to do this?

Have the transmitter on the Raptor 90 model and then turn on the Raptor 50 and be able to control it some? Can you bind between the two?
Can this be done accidentally? In other words if you didn't notice the transmitter was on the Raptor 90 model and you bound it to the Rap 50 on start up?

True Model Match will not let this happen. I do agree once everything is powered up that you can't switch between models accidentally and make them work.

David

David,

The Spektrum binding takes a little more effort than the Futaba binding, IIRC. With the Spektrum, you must physically insert a binding plug into the reciever to bind that receiver to a transmitter, so just accidentally pushing a few buttons isn't going to do anything. The binding plug is simply a jumper that grounds the unused signal pin in the Battery socket and tells the receiver to go into binding mode. The jumper has to go into that socket, nothing else will work. Somewhat of a PITA, but also a little safer maybe.

If I did that, then I could go through the binding process and bind all of my receivers to the same model number in the transmitter and they would all work like our regular radios do today.

As I have them set up now, I can turn on both models, but only the model that is selected at the transmitter will work. The other one sits there in fail safe until I switch the transmitter to that particular model. Sure wish I had this feature in the old days when I flew on 53 mHz.

Take care,

Ron

[Danal Estes]

I think one thing thats making this more complicated to discuss is using the word "Bind" for two things, the actual bind (with jumpers) and each startup. May I suggest:

Bind is when you put the jumper in the RX and press the button on the back of the TX. You do this once, and only do it again if you change setup (to re memorize failsafe and startup positions) or change models or whatever.

Link is when you power up the RX and TX and they find each other. You do this every time you fly.






Using those definitions:

"Model Match" will allow a DX7 to link to a given RX when the model memory that was used at at bind is selected. It will not allow a DX7 to link to that same RX when a different model memory is selected. Same thing phrased another way: A given RX is "bound to" a given model memory in the TX. By the way you can bind many RXs to one model memory (as long as they are all the same type, DSM1 or DSM2, no mixing); not truly relevant to our discussion... just thought I'd mention it.

With the Spektrum module system (and the DX6 for that matter), model match does not apply. The RX is bound to the module. The module cannot "know" what model memory is selected in the TX. As such, neither can the RX. As long as the model in the TX is PPM modulation, the Spektrum module will send and the RX will respond.

I cannot explain Rocket Man's 10x's behavior when switching models... unless one of them (th R50) is still set for PCM modulation, and/or the 10x stops sending PPM to the module bay if you switch models while powered on, or similar. Any PPM stream sent by the 10x will get sent by the module to the RX... no matter which model memory originates that PPM stream.

[falconea45]

Just "Binding" to this post