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Jeti-duplex-ds-16-2.4-ghz

Old 04-11-2016, 04:10 AM
  #2576  
wfield0455
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That is an issue that has been known for quite a while. In dual path, instead of showing the signal strength for the remaining active antennas, disconnecting one of the receivers causes all antenna information to be lost. Since this issue has been around for a long time, I suspect it isn't easily fixed.

Last edited by wfield0455; 04-11-2016 at 04:13 AM.
Old 04-11-2016, 12:00 PM
  #2577  
tucson
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Hi looking for an opinion. I have a new jet which will need a receiver. I also have a 14 channel and 7 channel both new that I am thinking of using in dual path. This as opposed to buy a 200 with two 3 channel receivers.
My other planes do have the 200 system in them with no problems. How would this work out compared to using the 200 system.

Stan
Old 04-11-2016, 12:45 PM
  #2578  
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Compared to the CB200 you will loose the short protection for each servos and will be using only one battery directly to the Rx so you will loose redundancy unless you set up an other system to feed the Rx with 2 batteries.

Telemetry wise with the CB200 you can plug up to 3 devices, with your system not sure what you will have I do not know which channel can be converted to telemetry on the R14
Old 04-11-2016, 01:04 PM
  #2579  
tucson
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I have Jeti's DSM-10 which will control two Life battery's into the one switch. Other then the two battery problem which is solved with dsm 10 and the short protection what is the advantage. I wonder if using the 7 channel in with the 14 gives me the ability to use more devices?

Stan
Old 04-11-2016, 02:54 PM
  #2580  
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My opinion:
Stan the servo protection isn't really that big of deal.. how many failures have we had that popped the polyfuse?..

The difference is in the antenna setup.. We went down this road a few years ago.. dual path vs default/clone. The 14 is just fine with the DSM10, as long as it isn't a big jet.. you are limited to burst 20 amps, 10 nominal.. just use multiplex plug directly into the 14.. Use good power wire

As far as dual path, vs clone, we have done both and I feel a lot better having my primary receiver talking to both transmitter modules, so I prefer default. Then you set up the 7 as a clone. set up the satellite port to monitor PPM.. I use signal weak to monitor it, so it tickles me if the clone receiver isn't outputting. it works fine.

However if you run dual path, it will also work fine..matter of preference..

That being said, over time, we have almost all switched the bigger and more complex jets to CB200/R3 setup because of the high speed redundancy..

I know Jim still has an R14/R5 setup that still works great in his reaction.

IF you are going to ever buddy box with another Jeti you have to run a default/R14/18 setup by the way..

So.. my answer is: It depends on the size, current, complexity, and composition.. and you can stack telemetry with the expanders.. I have had 6 things total plugged into one port so far

Last edited by gooseF22; 04-11-2016 at 02:57 PM.
Old 04-11-2016, 04:50 PM
  #2581  
tucson
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Goose, My new Jet is a Carf Viper. I am planning on either a JC 180 or a kt 210. 9 servos, 7955's. two of my other jets have cb 200's with R3's. I just had a 14 and 7 that I was not using. I guess I will use the CB 200. I agree that servo protection isn't high on my list either.
Old 04-11-2016, 05:28 PM
  #2582  
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Stan, thats a no brainer.. CB200
If you haven't bought servos, take a hard look at the MKS servos too.. they have futuba splines. the 7955 equivalent is the 777 MKS. Both are heavy.. there are lighter ones more suited for the CARF Viper.

Last edited by gooseF22; 04-11-2016 at 05:30 PM.
Old 04-12-2016, 12:29 AM
  #2583  
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Thanks Wayne...cheers
Old 04-12-2016, 03:23 AM
  #2584  
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YouTube VIDEO:
Basic Programming: Servo Setup & Balancer

https://www.youtube.com/watch?v=-TZ3ezUE0Cg
Old 04-13-2016, 04:40 PM
  #2585  
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I need Help!!!! So I have a CB200 and 3 R3's all updated and confirmed. Servos I am using are JR8911's and MKS 777 x3 and MKS 1220 all HV. When everything is connected and turned on my rudder servo (MKS 777) is fluttering like crazy almost like trying to find the center. It moves from left to right like crazy. Now I also have a EX R12 that is up to date. I set up a new profile on my DS16 and used the R12 and the rudder was working correct with no jitter or crazy flutter. So I know its not the servo and I know its not the battery. I cleaned out my model with the CB200 in my DS16 created a new model and set up the R3's and CB200 correctly EXbus for both R3s dual path. and what do you know its start doing it again. I am lost and not sure why its doing it. The only thing that I can think of is that on the R12 not changing the servo assignments my rudders falls on channel 7 which is on of the PPM channels. If that is the case then how can I set the channel on the CB200 that the servo is in to PPM? I need help. this is making me loose my mind.
Old 04-13-2016, 06:12 PM
  #2586  
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Originally Posted by JoeJr1485
I need Help!!!! So I have a CB200 and 3 R3's all updated and confirmed. Servos I am using are JR8911's and MKS 777 x3 and MKS 1220 all HV. When everything is connected and turned on my rudder servo (MKS 777) is fluttering like crazy almost like trying to find the center. It moves from left to right like crazy. Now I also have a EX R12 that is up to date. I set up a new profile on my DS16 and used the R12 and the rudder was working correct with no jitter or crazy flutter. So I know its not the servo and I know its not the battery. I cleaned out my model with the CB200 in my DS16 created a new model and set up the R3's and CB200 correctly EXbus for both R3s dual path. and what do you know its start doing it again. I am lost and not sure why its doing it. The only thing that I can think of is that on the R12 not changing the servo assignments my rudders falls on channel 7 which is on of the PPM channels. If that is the case then how can I set the channel on the CB200 that the servo is in to PPM? I need help. this is making me loose my mind.


Okay I think I fixed it! not sure if this is how it supposed to be but it works and the rudder is smooth as butter now. Here is the video clip before and then after. This bellows my mind. I am not sure why I just cant hook it up all on the CB200.
https://www.youtube.com/watch?v=9PMaMBqxrfU

https://www.youtube.com/watch?v=net9ZsPwEyE

Edit: Everything is hooked back up an man is it quite. not a buzz or anything. When sticks moved all movement is nice and smooth. Jeti Team Not sure why this happened but not sure if was just the servo that didn't like the CB200 or what but with it plugged into port 1 config to rudder on my R3 primary its works perfect.

Last edited by JoeJr1485; 04-13-2016 at 07:25 PM.
Old 04-14-2016, 03:40 AM
  #2587  
wfield0455
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Originally Posted by JoeJr1485
Okay I think I fixed it! not sure if this is how it supposed to be but it works and the rudder is smooth as butter now. Here is the video clip before and then after. This bellows my mind. I am not sure why I just cant hook it up all on the CB200.
https://www.youtube.com/watch?v=9PMaMBqxrfU

https://www.youtube.com/watch?v=net9ZsPwEyE

Edit: Everything is hooked back up an man is it quite. not a buzz or anything. When sticks moved all movement is nice and smooth. Jeti Team Not sure why this happened but not sure if was just the servo that didn't like the CB200 or what but with it plugged into port 1 config to rudder on my R3 primary its works perfect.
If appeared from your second video that you now have the rudder servo directly connected to the R3.
Absolutely DO NOT FLY your airplane with the rudder servo attached directly to the R3. DISCONNECT that servo from the R3 IMMEDIATELY as connecting a high power servo to your R3 WILL DESTROY your CB200. The CB200 Sat and the first EXT port (non servo ports) are only capable of sourcing only 300ma of current and an MKS777 will regularly draw 10 times that much current and will burn out that Sat port the R3 is attached to.

Double check all your receiver settings.

Primary receiver to EX Bus, Fail-Safe Disabled.
Secondary receiver to EX Bus, Fail-Safe disabled.
Get rid of any strange output mapping from your R3s.

Set the CB200 output period to Auto if all servos are digital. Set fail-safe in CB200 ONLY.

Test it again.

What frame rate were you using in the R12/R3 when you tested the MKS with them. Were they set to the default 17ms ? If so, try reconnecting the servo to your R12 and set the R12's output period to Auto. If the servo then goes crazy when conncted to the R12, the servo isn't capable of handling the higher frame rate indicating it's defective. This seems rather unlikely but it's worth testing.


I've used MKS777 with a CB200 without the slightest hint of a problem.

If the servo still operates properly when connected to the R12 with output period set to Auto, does that servo act up in ALL CB200 ports ?
Do whatever trouble shooting you need in order to sort this out but don't fly with a servo connected to a CB200 remote receiver.
Old 04-14-2016, 05:33 AM
  #2588  
Mark Vandervelden
 
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Hi Joe Jr

I think you issue with buzz is as wfield has pointed out that your frame rate is incorrect, set it to 17ms or perhaps auto in both the Sats/R3s, FS off then set 17ms-Auto in the CB200 (set any FS needed in CB200) and try again.

As Wified mentioned "please" dont run a hi powered servo from your sats/R3 output, you might get away with a std low power servo on a non critical function that dose not require FS

Another issue might be is that JR 8911 servos are defanatly not HV? There up to and not more than 6v, running HV will undoubtedly cause issues especially buzz.
Old 04-14-2016, 06:19 AM
  #2589  
wfield0455
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Originally Posted by Mark Vandervelden
Hi Joe Jr

I think you issue with buzz is as wfield has pointed out that your frame rate is incorrect, set it to 17ms or perhaps auto in both the Sats/R3s, FS off then set 17ms-Auto in the CB200 (set any FS needed in CB200) and try again.

As Wified mentioned "please" dont run a hi powered servo from your sats/R3 output, you might get away with a std low power servo on a non critical function that dose not require FS

Another issue might be is that JR 8911 servos are defanatly not HV? There up to and not more than 6v, running HV will undoubtedly cause issues especially buzz.
Mark,

Not sure where JoeJr1485 is located but here in the US we have the JR8911HV, which most of us simply refer to as JR8911s. The US version is HV rated and bit different than the JR8911 that is found in Europe, etc. I believe the European JR8911 is much closer to the US JR8711 servo which is as you mentioned, not HV rated.
Old 04-14-2016, 06:54 AM
  #2590  
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Hi Wayne

Fair enough, Its all good intel, just wanted to be sure nobody blew there servos up on a misunderstanding

Last edited by Mark Vandervelden; 04-14-2016 at 07:12 AM.
Old 04-14-2016, 07:09 AM
  #2591  
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Duplicate post!

Last edited by Mark Vandervelden; 04-14-2016 at 07:11 AM.
Old 04-14-2016, 09:54 AM
  #2592  
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Thanks for helping me out. I will do that and triple check eveything. I hope I can get it to work properly. the main thing is I dont want to burn anything out. I'll report back soon. thanks again for helping me out.
Old 04-14-2016, 10:38 AM
  #2593  
RCISFUN
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A quick note for all of the Jet Central users utilizing the new Jet Central SE electronics, Juan from Jet Central just posted a video demo using the new Jet Central Telemetry interface working with the Jeti radio.

https://www.youtube.com/watch?v=fPOwS4sRuxQ
Old 04-14-2016, 03:33 PM
  #2594  
jonkoppisch
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Need logic switch help. For some reason I've gone brain dead lol

Id like to make a logic setup that my flaps will raise from full flap to 1/2 flap when the throttle goes over 1/2
Old 04-14-2016, 03:44 PM
  #2595  
RCISFUN
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Originally Posted by jonkoppisch
Need logic switch help. For some reason I've gone brain dead lol

Id like to make a logic setup that my flaps will raise from full flap to 1/2 flap when the throttle goes over 1/2
Just a thought....So I would guess this would also work in reverse, i.e. when the throttle is lowered the flaps are deployed from 1/2 to full, this can be a dangerous situation... when I first started flying jets with a Boomerang I tried this thinking this would be a great idea...can you say slow down to snap!

If you can program to prevent that from happening ( i.e. in one drection only) then no problem...

Last edited by RCISFUN; 04-14-2016 at 03:46 PM.
Old 04-14-2016, 03:50 PM
  #2596  
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Originally Posted by JoeJr1485
Thanks for helping me out. I will do that and triple check eveything. I hope I can get it to work properly. the main thing is I dont want to burn anything out. I'll report back soon. thanks again for helping me out.
Okay so I have done everything that was instructed and it is still doing it. I took a video of my processes and you can see the results. I am lost. I still don't think its the servo or the extension wire because if that was the issue, it would have done the same thing on the 12 Channel. Please see video: https://www.youtube.com/watch?v=gJDP2_mQpc8. I wish there was PPM on the CB200 so that I could check that. Its also funny that none of the other servos are doing that not even the other 3 MKS servos I have. I also hooked up one of the flap servos to the rudder output and it worked fine so to me I would think that the rudder servo is defected but it cant be if it works fine on the RX12.
Old 04-14-2016, 03:55 PM
  #2597  
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Originally Posted by RCISFUN
Just a thought....So I would guess this would also work in reverse, i.e. when the throttle is lowered the flaps are deployed from 1/2 to full, this can be a dangerous situation... when I first started flying jets with a Boomerang I tried this thinking this would be a great idea...can you say slow down to snap!

If you can program to prevent that from happening ( i.e. in one drection only) then no problem...

For or a go around you could set the throttle activation higher. May 3/4 throttle. That should give a buffer area.
Old 04-14-2016, 05:31 PM
  #2598  
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Originally Posted by jonkoppisch
Need logic switch help. For some reason I've gone brain dead lol

Id like to make a logic setup that my flaps will raise from full flap to 1/2 flap when the throttle goes over 1/2
I believe I accomplished what you are after by using a throttle to flap mix. I trigger the mix using a logic switch set to flaps <65% or a slider position of <-35%. The mix is set to 100% with a single direction selected. I then used a 7 point curve in the mix so the throttle only effects the flap setting above 75% throttle. The result is if I have to do a go around I can advance the throttle to full with landing (full) flaps and the flaps will automatically retract to my takeoff flap position. The throttle does not affect the flap position if the logic switch is not active. I think it works well.
Tim

Last edited by Custmachr; 04-14-2016 at 05:33 PM. Reason: Typo
Old 04-14-2016, 06:33 PM
  #2599  
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Lol. That would do it. Sure sounds complicated to avoid flipping 1 switch lol. I figured logic would be a simple way to do it and it would give a chance to play with it. I sure miss the 3 variable way to set things. If x and/or y then z...
Old 04-14-2016, 10:58 PM
  #2600  
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Originally Posted by JoeJr1485
Okay so I have done everything that was instructed and it is still doing it. I took a video of my processes and you can see the results. I am lost. I still don't think its the servo or the extension wire because if that was the issue, it would have done the same thing on the 12 Channel. Please see video: https://www.youtube.com/watch?v=gJDP2_mQpc8. I wish there was PPM on the CB200 so that I could check that. Its also funny that none of the other servos are doing that not even the other 3 MKS servos I have. I also hooked up one of the flap servos to the rudder output and it worked fine so to me I would think that the rudder servo is defected but it cant be if it works fine on the RX12.
Okay Update: So I reset my radio/CB200/R3's, I hooked up the CB200 straight to the servo. It works correctly/smooth and no jitter/flutter in the movement or just sitting still. Now to let you know what wire I am using for my extension is the power box premium servo wire from DreamWorks (the red/white/blue wire). I made up an extension to the size that I have in the jet and what do you know it start to jitter just a little when turning left to right. So the next step was to hook it back up to the same extension in the jet, well it was worse just like it was in the videos. Now I wouldnt think that it would be bad wire but I know my ends are good on the wire. the extension is about 4.5 to 5 feet long. I wouldn't think that I would have issue with that. So now I will make another extension using a different brand and see what happens. If it fixes it then Man this sticks because now I have to take out the turbine/thrust tube/and maybe a few other things to get the wire run. I just don't understand because in the Elv. I have the same wire and same length to my JR8911HV's and I don't get that issue. I have another MKS 777 coming so next week I will be able to pin point it to the brand of wire or the servo just doesn't like that long extension on that brand of wire. does this sound crazy to anyone or is there something to this????

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