DX7s throttle reversed, trim wont work
11-27-2012, 07:32 PM
#1
DX7s throttle reversed, trim wont work
Hi all,
I just bought a new DX7s and for some reason the trottle trim works perfectly when the throttle action is normal, but when I reverse the throttle action in the transmitter, the throttle trim does not work, not at all. I need to be able to reverse the throttle to get what I need in my setup. All due respect I am very experienced at setting up planes and I am familiar with RC electronics, so I dont need any additional help. Im just curious if anyone else has experienced and solved this little glitch that I cannot figure out in the transmitter. I called horizon and they could not explain it or offer a solution.
Thanks in advance for your insight.
Mike
I just bought a new DX7s and for some reason the trottle trim works perfectly when the throttle action is normal, but when I reverse the throttle action in the transmitter, the throttle trim does not work, not at all. I need to be able to reverse the throttle to get what I need in my setup. All due respect I am very experienced at setting up planes and I am familiar with RC electronics, so I dont need any additional help. Im just curious if anyone else has experienced and solved this little glitch that I cannot figure out in the transmitter. I called horizon and they could not explain it or offer a solution.
Thanks in advance for your insight.
Mike
11-27-2012, 09:14 PM
#2
Senior Member
RE: DX7s throttle reversed, trim wont work
ORIGINAL: MikeEast Hi all,
I just bought a new DX7s and for some reason the trottle trim works perfectly when the throttle action is normal, but when I reverse the throttle action in the transmitter, the throttle trim does not work, not at all.
I need to be able to reverse the throttle to get what I need in my setup. All due respect I am very experienced at setting up planes and I am familiar with RC electronics, so I dont need any additional help.
Im just curious if anyone else has experienced and solved this little glitch that I cannot figure out in the transmitter.
I called horizon and they could not explain it or offer a solution. Thanks in advance for your insight. Mike
I just bought a new DX7s and for some reason the trottle trim works perfectly when the throttle action is normal, but when I reverse the throttle action in the transmitter, the throttle trim does not work, not at all.
I need to be able to reverse the throttle to get what I need in my setup. All due respect I am very experienced at setting up planes and I am familiar with RC electronics, so I dont need any additional help.
Im just curious if anyone else has experienced and solved this little glitch that I cannot figure out in the transmitter.
I called horizon and they could not explain it or offer a solution. Thanks in advance for your insight. Mike
Given that you do not want a response with explanation on this forum,
suggest you correspond with the Spekrum TX firmware designer direct:
Andy Kunz
or you may find an explanation under sub section:
"Radio Systems, Accessories, Alterations and FAQ" below
Alan's Hobby, Model & RC FAQ Web Links
Alan T.
11-27-2012, 09:18 PM
#3
RE: DX7s throttle reversed, trim wont work
G'day Mike,
What I get from your question is that you reversed the throttle action, so full throttle, is all the way DOWN, & Idle is all the way UP.
In this configuration, throttle trim would also be reversed, so slower idle would be full UP on the trim.
Is that correct?
Is this what you wanted to do?
Or did you just want to reverse the throttle servo?
Cheers
What I get from your question is that you reversed the throttle action, so full throttle, is all the way DOWN, & Idle is all the way UP.
In this configuration, throttle trim would also be reversed, so slower idle would be full UP on the trim.
Is that correct?
Is this what you wanted to do?
Or did you just want to reverse the throttle servo?
Cheers
11-27-2012, 10:38 PM
#4
My Feedback: (2)
RE: DX7s throttle reversed, trim wont work
ORIGINAL: MikeEast
Hi all,
I just bought a new DX7s and for some reason the trottle trim works perfectly when the throttle action is normal, but when I reverse the throttle action in the transmitter, the throttle trim does not work, not at all. I need to be able to reverse the throttle to get what I need in my setup. All due respect I am very experienced at setting up planes and I am familiar with RC electronics, so I dont need any additional help. Im just curious if anyone else has experienced and solved this little glitch that I cannot figure out in the transmitter. I called horizon and they could not explain it or offer a solution.
Thanks in advance for your insight.
Mike
Hi all,
I just bought a new DX7s and for some reason the trottle trim works perfectly when the throttle action is normal, but when I reverse the throttle action in the transmitter, the throttle trim does not work, not at all. I need to be able to reverse the throttle to get what I need in my setup. All due respect I am very experienced at setting up planes and I am familiar with RC electronics, so I dont need any additional help. Im just curious if anyone else has experienced and solved this little glitch that I cannot figure out in the transmitter. I called horizon and they could not explain it or offer a solution.
Thanks in advance for your insight.
Mike
11-28-2012, 06:05 AM
#5
RE: DX7s throttle reversed, trim wont work
ORIGINAL: MikeEast
Hi all,
I just bought a new DX7s and for some reason the trottle trim works perfectly when the throttle action is normal, but when I reverse the throttle action in the transmitter, the throttle trim does not work, not at all. I need to be able to reverse the throttle to get what I need in my setup. All due respect I am very experienced at setting up planes and I am familiar with RC electronics, so I dont need any additional help. Im just curious if anyone else has experienced and solved this little glitch that I cannot figure out in the transmitter. I called horizon and they could not explain it or offer a solution.
Thanks in advance for your insight.
Mike
Hi all,
I just bought a new DX7s and for some reason the trottle trim works perfectly when the throttle action is normal, but when I reverse the throttle action in the transmitter, the throttle trim does not work, not at all. I need to be able to reverse the throttle to get what I need in my setup. All due respect I am very experienced at setting up planes and I am familiar with RC electronics, so I dont need any additional help. Im just curious if anyone else has experienced and solved this little glitch that I cannot figure out in the transmitter. I called horizon and they could not explain it or offer a solution.
Thanks in advance for your insight.
Mike
That should be all the non-help you need to understand why your change doesn't work as you expected.
Andy
11-28-2012, 09:04 AM
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RE: DX7s throttle reversed, trim wont work
Mike,
Are you saying that you want the the throttle channel to be at idle with the throttle stick at the full up position?
Pete
Are you saying that you want the the throttle channel to be at idle with the throttle stick at the full up position?
Pete
11-28-2012, 01:15 PM
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RE: DX7s throttle reversed, trim wont work
Reason I asked was because some folks do fly with the throttle stick reversed. The Futaba computer radios I've owned have that option in the system menu, but it also reverses the trim, so the trim works when the stick is fully up for idle and all mixing and curves work normally. Futaba calls it reverse throttle.
Pete
Pete
11-28-2012, 01:26 PM
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RE: DX7s throttle reversed, trim wont work
ORIGINAL: AndyKunz
[Since you're experienced, you know that throttle trim only works on the lower half of throttle travel, and that it is added in as a function of its displacement from center.
That should be all the non-help you need to understand why your change doesn't work as you expected.
Andy
[Since you're experienced, you know that throttle trim only works on the lower half of throttle travel, and that it is added in as a function of its displacement from center.
That should be all the non-help you need to understand why your change doesn't work as you expected.
Andy
11-28-2012, 02:18 PM
#11
RE: DX7s throttle reversed, trim wont work
Lol, I knew it, you guys are a trip still after a few years away
I went into the tx servo setup for throttle and changed the Norm/rev option to Rev. Simple basic throttle setup decision in the radio. Ive had 10 different computer radios and I have had lots of planes where I had to set the throttle to reverse in the tx so that the throttle opens when you push up onthe stick.. The trim has never failed to function in my old DX7 or any of my other JR or Futaba computer radios.Regardless of whether normal or reverse setting. For some reason In this DX7s, after selecting reverse, The trim no longer worked.
I went into the tx servo setup for throttle and changed the Norm/rev option to Rev. Simple basic throttle setup decision in the radio. Ive had 10 different computer radios and I have had lots of planes where I had to set the throttle to reverse in the tx so that the throttle opens when you push up onthe stick.. The trim has never failed to function in my old DX7 or any of my other JR or Futaba computer radios.Regardless of whether normal or reverse setting. For some reason In this DX7s, after selecting reverse, The trim no longer worked.
11-28-2012, 03:38 PM
#15
RE: DX7s throttle reversed, trim wont work
ORIGINAL: ira d
It is obvious to me that something is wrong with your DX7, I wonder why Horizon and Andy cant see that?
It is obvious to me that something is wrong with your DX7, I wonder why Horizon and Andy cant see that?
If so that's okay... I just thought maybe someone else had this issue and there is
Something in the TX setup I am overlooking.
11-28-2012, 03:56 PM
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RE: DX7s throttle reversed, trim wont work
Mike,
Have you tried an unused model memory, one where everything is at default to see if reversing the throttle servo results in the trim not working?
Pete
Have you tried an unused model memory, one where everything is at default to see if reversing the throttle servo results in the trim not working?
Pete
11-28-2012, 04:02 PM
#17
RE: DX7s throttle reversed, trim wont work
ORIGINAL: pilotpete2
Mike,
Have you tried an unused model memory, one where everything is at default to see if reversing the throttle servo results in the trim not working?
Pete
Mike,
Have you tried an unused model memory, one where everything is at default to see if reversing the throttle servo results in the trim not working?
Pete
11-28-2012, 06:20 PM
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RE: DX7s throttle reversed, trim wont work
ORIGINAL: MikeEast
Hi all,
I just bought a new DX7s and for some reason the trottle trim works perfectly when the throttle action is normal, but when I reverse the throttle action in the transmitter, the throttle trim does not work, not at all. I need to be able to reverse the throttle to get what I need in my setup. All due respect I am very experienced at setting up planes and I am familiar with RC electronics, so I dont need any additional help. Im just curious if anyone else has experienced and solved this little glitch that I cannot figure out in the transmitter. I called horizon and they could not explain it or offer a solution.
Thanks in advance for your insight.
Mike
Hi all,
I just bought a new DX7s and for some reason the trottle trim works perfectly when the throttle action is normal, but when I reverse the throttle action in the transmitter, the throttle trim does not work, not at all. I need to be able to reverse the throttle to get what I need in my setup. All due respect I am very experienced at setting up planes and I am familiar with RC electronics, so I dont need any additional help. Im just curious if anyone else has experienced and solved this little glitch that I cannot figure out in the transmitter. I called horizon and they could not explain it or offer a solution.
Thanks in advance for your insight.
Mike
11-28-2012, 06:30 PM
#19
RE: DX7s throttle reversed, trim wont work
ORIGINAL: Rob2160
I just tested it on my DX7s and the trim works perfectly when the throttle is reversed. What firmware is your radio? Mine is 1.01.
ORIGINAL: MikeEast
Hi all,
I just bought a new DX7s and for some reason the trottle trim works perfectly when the throttle action is normal, but when I reverse the throttle action in the transmitter, the throttle trim does not work, not at all. I need to be able to reverse the throttle to get what I need in my setup. All due respect I am very experienced at setting up planes and I am familiar with RC electronics, so I dont need any additional help. Im just curious if anyone else has experienced and solved this little glitch that I cannot figure out in the transmitter. I called horizon and they could not explain it or offer a solution.
Thanks in advance for your insight.
Mike
Hi all,
I just bought a new DX7s and for some reason the trottle trim works perfectly when the throttle action is normal, but when I reverse the throttle action in the transmitter, the throttle trim does not work, not at all. I need to be able to reverse the throttle to get what I need in my setup. All due respect I am very experienced at setting up planes and I am familiar with RC electronics, so I dont need any additional help. Im just curious if anyone else has experienced and solved this little glitch that I cannot figure out in the transmitter. I called horizon and they could not explain it or offer a solution.
Thanks in advance for your insight.
Mike
If you are referring to the number beneath export on the serial number page, it's 1.00.
11-28-2012, 07:00 PM
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RE: DX7s throttle reversed, trim wont work
ORIGINAL: MikeEast
If you are referring to the number beneath export on the serial number page, it's 1.00.
ORIGINAL: Rob2160
I just tested it on my DX7s and the trim works perfectly when the throttle is reversed. What firmware is your radio? Mine is 1.01.
I just tested it on my DX7s and the trim works perfectly when the throttle is reversed. What firmware is your radio? Mine is 1.01.
If you are referring to the number beneath export on the serial number page, it's 1.00.
Try updating your firmware. Just noticed they are up to 1.03 for the DX7s.
This could solve your problem..
PS.. I could be mistaken on exact details but I think my DX8 had an odd trim behaviour when new which was corrected with by a later firmware update.
I'll have to research these latest updates.. I don't really understand what the sub trim changes are.. IE
Automatically corrects sub-trim and travel for models created in version 1.01 and
earlier after prompting the user.
What exactly does it auto correct Andy?
I have 20 models in my DX7s and 4 helis that each use a bit of subtrim..
How much "re trimming" will I need if I update to 1.03 vs 1.01?
The radio works perfectly now but I like the idea of dimming the LEDand adjusting inactivity timer...
11-28-2012, 07:26 PM
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RE: DX7s throttle reversed, trim wont work
ORIGINAL: lourod996
Sell it get a Futaba.... Youll never have any issues...
Sell it get a Futaba.... Youll never have any issues...
I have a Futaba 8FG also, started with Firmware 2.0, upgraded to 3.0, fixed some bugs..
Upgraded to 4.0, whichintroduced a bug, so 4.1 arrived.
Now up to 5.0 and all seems to be working well..
Like Spektrum the firmware upgrades usually add extra functionality too... which is a good thing.
I have a 6EX Futaba that has developed minorfaulty centering on the aileron channel.. Under 200 flights on this radio..
Not to mention the Zero GUID problem (yes I know it was a long time ago.. but just shows Futaba is not Perfect either. )
Info here.. many Futaba radios were recalled and needed fixing..
http://www.rcgroups.com/forums/showthread.php?t=803207
11-28-2012, 08:40 PM
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RE: DX7s throttle reversed, trim wont work
ORIGINAL: lourod996
Sell it get a Futaba.... Youll never have any issues...
Sell it get a Futaba.... Youll never have any issues...
11-29-2012, 01:59 AM
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RE: DX7s throttle reversed, trim wont work
ORIGINAL: Tluu
Why is it that anytime someone has a question about a problem on their spektrum radio....someone comes in and says get a futaba. I've been flying spektrum and JR system for over 6 year without problem.
ORIGINAL: lourod996
Sell it get a Futaba.... Youll never have any issues...
Sell it get a Futaba.... Youll never have any issues...
Its the oldest pattern in human psychology.. focus on the faults of others to make you feelbetter about yourself..
its human nature...