Binding two X8R receivers

[48thFleet]

I have bound several models with multiple receivers, specifically X9E's to X8R's without issues and the new UNI receivers bind beautifully. That said I can not get my current radio to bind to two receivers on channels 1-16. For all intensive purposes it appears to stay in D8 mode, even when D16 mode is selected. I can bind the two receivers to the radio, but they both bind on chaaneels 1-8. Has anyone else ever run into this and if so, what was the solution? Thank you, Jonathan

 

[Wayne]

Jonathan, there is a LUA script you can run on your radio and change the channel assignments for a receiver running UNI. Trying to find a link for the LUA script but not finding it.. Anyone have a quick link for it?

 

[48thFleet]

Wayne, You want me to play with LUA scripts? I am just mastering my push button phone!

 

[MikeB]

What protocol is your Tx using (v1/V2, FCC/EU-LBT)?
I assume you are binding selecting CH1-8 with telemetry for one Rx and CH9-16 without telemetry for the other (selected in the bind options menu).

Mike

 

[48thFleet]

I am binding selecting CH 1-8 with Tele on one receiver and CH 9-16 without on the second receiver. The radio is FCC. As to the version US 2.2.4 da82433. That is the best I can do there.\Thanks

 

[MikeB]

I just tested with FCC both V1 and V2 and it all worked correctly (I'm using erskyTx on the Transmitters) (one Rx was a X8R, the other a RX8R).
Do you have CH1-16 selected in the protocol setup (not CH1-8)?

Mike

 

[48thFleet]

Mike,
Yes I do. Here is my routine: Select D16 mode, Set xmitter to CH1-16, Prepare the xmitter to bind on CH 1-8 +Tele, Power up X8R with Bind button depressed, engage Xmitter into bind mode with selected channels. The receiver will bind correctly. Disengage the receiver from power. Set the Xmitter to prepare to bind the second receiver, same receiver ID #as the first , but with CH 9-16 selected WITHOUT Tele. Power up second receiver with bind button depressed, Engage the Xmitter in bind mode with the selected CH's. The receiver binds, BUT the second receiver binds to CH 1-8, NOT CH 9-16. With both receivers powered up, the xmitter controls BOTH receivers on CH 1-8.
Any thoughts?

 

[MikeB]

If you just use the second Rx (bound on 9-16 without telemetry) do you get telemetry anyway?
Have you ever updated the firmware on the Tx module?

Mike

 

[48thFleet]

Mike,
Yes I do. No, I have not updated this radio, but, that said, when I try to bind the receivers to aa different X9E, running 2.2.4, which already has multiple receivers bound to each model already on it, the results with the "new" receivers is the same. I have tried binding them to three different X9E's, with the same results.

 

[48thFleet]

Mike,
Yes I do. No, I have not updated this radio, but, that said, when I try to bind the receivers to aa different X9E, running 2.2.4, which already has multiple receivers bound to each model already on it, the results with the "new UNI" receivers is the same. I have tried binding them to three different X9E's, with the same results.

Mike,
A follow-up. Regardless of which channel range, 1-8 or 9-16, without tele, I bind the receiver to, Tele is present and the receiver links to the same output channel. ( the only model programming is CH 1-4, with no mixes)

 

[MikeB]

Does binding on CH9-16 work with receivers that are using FrSky firmware?

Mike

 

[48thFleet]

The receivers I am trying to bind are using Aloft's UNI programing. I sent them to be programmed because they would not bind two receivers before, using FrSky programming.

 

[Konrad]

Do I have this correct. FW ACCST v1/v2 are known to work with the dual RX (expanded channels). I do this all the time as most of my EDF jets use 12 to 16 channels .
You have some issue getting this functionality with ACCST v1/v2. So you added to the complication another variable the Uni FW? Sounds like a core problem with your set up and basic TX programing not a FW issue.

Are you outputting more that 4 channels? Do you have a copy of Lothar's fantastic manual for your TX?

 

[Konrad]

Mike,
A follow-up. Regardless of which channel range, 1-8 or 9-16, without tele, I bind the receiver to, Tele is present and the receiver links to the same output channel. ( the only model programming is CH 1-4, with no mixes)

Are you trying to expand your channel numbers (use more than 8 channels) ? Or are you trying to set up a redundant RX (safety back up)?

 

[48thFleet]

Are you trying to expand your channel numbers (use more than 8 channels) ? Or are you trying to set up a redundent RX (safety back up)?

I am expanding the range of channels.

Do I have this correct. FW ACCST v1/v2 are known to work with the dual RX (expanded channels). I do this all the time as most of my EDF jets use 12 to 16 channels .
You have some issue getting this functionality with ACCST v1/v2. So you added to the complication another variable the Uni FW? Sounds like a core problem with your set up and basic TX programing not a FW issue.

Are you outputting more that 4 channels? Do you have a copy of Lothar's fantastic manual for your TX?

 

[48thFleet]

Do I have this correct. FW ACCST v1/v2 are known to work with the dual RX (expanded channels). I do this all the time as most of my EDF jets use 12 to 16 channels .
You have some issue getting this functionality with ACCST v1/v2. So you added to the complication another variable the Uni FW? Sounds like a core problem with your set up and basic TX programing not a FW issue.

Are you outputting more that 4 channels? Do you have a copy of Lothar's fantastic manual for your TX?

Yes Konrad,
I agree that the functionality seems to be the issue, but I do not know how to address this. The reason for sending the receivers and having UNi programmed in was that the V1/V2 versions would not dual bind,Ch 1-8 + 9-16, either. Yes I can get channels 1-8 on both receivers, at the same time. No I do not have Lothar's manual.

 

[Konrad]

... ( the only model programming is CH 1-4, with no mixes)

With only a 4 channel program.? In your TX monitor screen how many channels are active?

Uni is not a fix for an none existent v1/v2 problem. Re-read the FrSky pamphlet that came with the RX's. (Note the jumper pins)

 

[48thFleet]

With only a 4 channel program.? In your TX monitor screen how many channels are active?

Uni is not a fix for an none existent v1/v2 problem. Re-read the FrSky pamphlet that came with the RX's. (Note the jumper pins)

I set up a test model using only 8 channels, rather than mess with my model which has 17 channels. I have tried binding according to Aloft's instructions, as well as FrSky's using binding plugs. When using the latter, I am able to bind only one of the two receivers( UNI programmed). With the former( Uni) both bind to CH 1-8, regardless of the CH assignment during binding.

 

[Konrad]

I set up a test model using only 8 channels, rather than mess with my model which has 17 channels. I have tried binding according to Aloft's instructions, as well as FrSky's using binding plugs. When using the latter, I am able to bind only one of the two receivers( UNI programmed). With the former( Uni) both bind to CH 1-8, regardless of the CH assignment during binding.

By my math you are still short a PWM output (8x2=16). Are you using S-bus to pull out the extra channel? Set up a dummy model with more than 8 channel. Verify that you are out putting more than 8 channels per the monitor screen and bind per the pamphlet.

Can you tell us what Radio experiance you have? Are you coming from Spektrum? make sure you are binding ber Frky's procedure.

 

[MikeB]

According to the manual for the PXX protocol (the one used between the radio and the Tx module), support for setting "no telemetry" and "CH9-16" was added in May 2016. If your Tx modules (Tx as a whole) was bought before then, the Tx module will NOT support this functionality.
It is likely you will need to update the firmware on the Tx module (not openTx itself).

Mike