Programming Dual Throttle - Spektrum DX18
10-27-2024, 10:31 PM
#1
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Programming Dual Throttle - Spektrum DX18
Hi all,
I have recently started to build a multi-engine kit, the Duellist 2/40. Link to the build thread. https://www.rcuniverse.com/forum/kit...l#post12806218
I could not find a tutorial on how to set up the Spektrum DX18 to operate two separate servos with both responding to a single throttle trim and a single throttle cut. A friend at my club took on the challenge and came up with the following setup. I hope this will be helpful to someone:
My radio is a Mode 2, the second "Throttle" servo is on the "Gear" channel, Throttle Cut is switch "H". You can obviously choose any other channel or switch for your own setup.
First in the Channel Input Config screed, make the status of the second servo output channel "Inh" (in my case, the "Gear" channel).
Set the throttle cut switch as usual, in my case switch "H":
Mix the throttle and chosen channel (in my case - "Gear")
Set the Mix as per this photo
For the throttle cut to work, create a second Mix as follows:
Now all should be working as seen on the Monitor screen
Second photo of the Monitor screen with the throttle cut in the "On" position (note throttle stick in the center)
Cheers,
Eran
I have recently started to build a multi-engine kit, the Duellist 2/40. Link to the build thread. https://www.rcuniverse.com/forum/kit...l#post12806218
I could not find a tutorial on how to set up the Spektrum DX18 to operate two separate servos with both responding to a single throttle trim and a single throttle cut. A friend at my club took on the challenge and came up with the following setup. I hope this will be helpful to someone:
My radio is a Mode 2, the second "Throttle" servo is on the "Gear" channel, Throttle Cut is switch "H". You can obviously choose any other channel or switch for your own setup.
First in the Channel Input Config screed, make the status of the second servo output channel "Inh" (in my case, the "Gear" channel).
Set the throttle cut switch as usual, in my case switch "H":
Mix the throttle and chosen channel (in my case - "Gear")
Set the Mix as per this photo
For the throttle cut to work, create a second Mix as follows:
Now all should be working as seen on the Monitor screen
Second photo of the Monitor screen with the throttle cut in the "On" position (note throttle stick in the center)
Cheers,
Eran
Yesterday, 04:45 AM
#2
Do you want the receiver to act like a mildly-smart Y, or do you want to be able to do differential thrust? Are you setting up for glow or electric?
I've covered this a few times in RCG.
Andy
I've covered this a few times in RCG.
Andy
Yesterday, 03:39 PM
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Andy - Thank you for your offer to assist further. At the moment, I do not need to set up differential thrust.
I am interested to know if anyone can show with screen shots as above how to set a separate trim for the "Gear" channel utilising the "R TRIM" on the DX18, keeping the rest of the functionality as above?
The setup is for two glow engines working from two servos for the reason of having ability to set servo travel, sub trim etc independently.
While I managed by myself (looking at a tutorial) to have the throttle and associated trim working for both channels, I could not figure out how to set the throttle cut for both and this is where I had to ask for assistance. To be honest, I do not fully understand how the "Mix" works, especially the use of the "Rate" and "Offset".
Cheers,
Eran
I am interested to know if anyone can show with screen shots as above how to set a separate trim for the "Gear" channel utilising the "R TRIM" on the DX18, keeping the rest of the functionality as above?
The setup is for two glow engines working from two servos for the reason of having ability to set servo travel, sub trim etc independently.
While I managed by myself (looking at a tutorial) to have the throttle and associated trim working for both channels, I could not figure out how to set the throttle cut for both and this is where I had to ask for assistance. To be honest, I do not fully understand how the "Mix" works, especially the use of the "Rate" and "Offset".
Cheers,
Eran
