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2.4G Spektrum Radios Spektrum 2.4 Gigahertz Radios and Technology


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Old 04-05-2021, 05:24 PM   #1 (permalink)
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Default AS3X, SAFE, and JR X9303?

I know this is not a heli question, but maybe someone here can help me out.
I'm wondering whether the AR631 receiver with AS3X and SAFE in the E-flite T-28 would work with my JR X9303 DSMX radio. I understand that I won't have telemetry, of course, but does the stabilization and SAFE mode work? A friend of mine already offered to use his iX12 radio's forward-programming feature to set up the unit. Once I then bind to my JR radio, am I good to go?


Thanks!
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Old 04-06-2021, 07:36 AM   #2 (permalink)
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The stabilization (AS3X and SAFE) is configured within the receiver and then the receiver handles it.

Fundamentally, all of the new Spektrum receivers work the same way as the old ones with AS3X do, where there's a configuration stored in the receiver and the receiver does the work itself. The AR636 is a great example of that concept. The big difference is how you configure them. The AR636 used a USB cable and PC software. The new ones use "Forward Programming", which means that screens on your transmitter allow you to access the configuration. However, for the receiver programming, the transmitter is just a screen and a keyboard if you will - nothing about the receiver's configuration is being stored in the transmitter. When you first set up the receiver, the transmitter can give the receiver some basics about servo direction and travel, and wing/tail type, but that's just a one-time copy into the receiver's configuration.

Bottom line, setting up the receiver using an iX12 and then using a different transmitter after that should work fine. I'd make sure the TX settings I just mentioned (servo setup, wing/tail type) match what was in the iX12. The switch for changing receiver flight modes just sends over +100%, 0%, or -100% on a designated channel in the setup.

Last edited by flightengr; 04-06-2021 at 09:30 AM.. Reason: Added "old ones with AS3X". Of course, not all receivers needed programming.
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Old 04-06-2021, 07:39 AM   #3 (permalink)
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Thank you! That's what I figured, but I wanted to make sure before I order the plane.
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Old 04-06-2021, 08:03 AM   #4 (permalink)
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If you're ordering BNF then you may not even need the iX12. The receiver should come preset from the factory, and then you can just follow the (brief) guidance in the manual for the transmitter setup.

The only thing that won't be preset from the factory would be the channel to use for the SAFE Select on/off switch. You can do that over the air with any transmitter; you don't need Forward Programming for that. The manual explains how to do it. The biggest thing the manuals fail to mention is that your transmitter must be on high rates (100%) when you do the special stick movement to start the process. If you have low rates active at the time, it won't work.
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Old 04-06-2021, 09:27 AM   #5 (permalink)
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Thank you, that's what I needed to hear!
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Old 04-06-2021, 01:42 PM   #6 (permalink)
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Quote:
Bottom line, setting up the receiver using an iX12 and then using a different transmitter after that should work fine. I'd make sure the TX settings I just mentioned (servo setup, wing/tail type) match what was in the iX12. The switch for changing receiver flight modes just sends over +100%, 0%, or -100% on a designated channel in the setup.
Can you still use the USB Update / Programming cable and the PC software on the new receivers too? Or, do they require a Spektrum DX / NX / iX transmitter to set them up?
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Old 04-06-2021, 01:44 PM   #7 (permalink)
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My understanding is that they can only be "forward-programmed" using one of the new radios.
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Old 04-06-2021, 07:13 PM   #8 (permalink)
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All you can do with the USB cable is update the firmware.

HH tells us that someday we'll be able to load a model from a file onto the receiver or copy the model in the receiver to a file for backup, but it hasn't happened yet.

There are no plans to let you use any PC software to edit the model settings. Forward Programming is it.
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Old 04-12-2021, 02:01 PM   #9 (permalink)
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Quote:
Originally Posted by getsuyoubi View Post
I know this is not a heli question, but maybe someone here can help me out.
I'm wondering whether the AR631 receiver with AS3X and SAFE in the E-flite T-28 would work with my JR X9303 DSMX radio. I understand that I won't have telemetry, of course, but does the stabilization and SAFE mode work? A friend of mine already offered to use his iX12 radio's forward-programming feature to set up the unit. Once I then bind to my JR radio, am I good to go?


Thanks!
Keep in mind that the Rx holds all of the AS3X/SAFE data. Thus, if you take an Rx out of one model and put it into another. It must be reprogrammed for the new model. IE: removing it from a fixed wing "nose" gear to a fixed wing tail dragger....etc.
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