DX6 problems

[mgalla]

Has anybody heard of a DX7 causing interference with a DX6? I just recently was at a competition and my bot was running perfectly fine with a DX6 and BR6000 reciever, then the other bot running a DX7 and also BR6000 turns on and I lose almost all weapon control. This went on for the whole 3 minutes! The next fight I fought a different bot, and everything worked fine. Then I went back to fighting the first bot again and I had the identical problem. After losing that fight due to the interference I went and tested it, everything worked fine. I fight him again right after testing and it's getting interefernce again! Right after I lose that fight becuase of the interference I go and test it after their bots shut off it works fine!!! I've been running a DX6 for over a year, this is the first time I've faced a bot with a DX7.

I've tested it with this other bot running 4 times, every time I got interference, I tested it after each failure with their bot turned off and mine magically worked fine!

I know 2.4 GHZ is supposed to be flawless but I'm 100 percent sure this was an interference problem.

Anybody heard of this and can offer some suggestions?

Nothing frusterates me more than losing a fight becuase of radio problems.....

[M-CHASSIS-NUMBER1]

Hi , i have read two race reports in race car internationl , in both instances the dx users had to go back to there 27meg Am systems, sorry i cant offer any solution, you could try the manufacturers to see if there is a solution available, good luck ,mcn1:D

[mgalla]

Thanks, glad to hear I'm not crazy!:D Do you remember if they were both using the same DX model or were they different?

[Jason Maxamps.com]

Matt I know I have heard issues about the Old DX6. But non like this. The DX7 is what I have coming and maybe this is why they now have the DX6i out on the market. Try contacting the Spektrum Service Department at Horizon and see what they say. It may be time to upgrade to a DX7. I hope I don't run into problems with the old DX3 I just bought for my crawler.

Jason

[M-CHASSIS-NUMBER1]

Thanks, glad to hear I'm not crazy!:D Do you remember if they were both using the same DX model or were they different?
the reports didnt specify,although i am pretty sure that there was always a timing loop/transponder system involved,, I was about to buy a new dx system but i am going to use it very close to a transmitter mast so i just aint sure what to go for. think i might hassle poor Dez Chand at rrci mag and see if he has heard anything. mcn1

[firemanbill]

We fly at our field all the time, me on my DX7 and my son on his DX6 with no issues at all... last week we even flew with another guy on a Futaba 2.4. All three in the air at once.

Maybe it has something to do with the confined spaces and all the metal.:confused: Just a thought

[Jason Maxamps.com]

Bill you make a good point maybe the older DX 6 is weaker in the signal strength and with the added metal surrounding everything the newer DX 7 is overpowering the DX 6. Or Maybe the other guy figured out a way to purposely mess up an opponents signal?

Jason

[mgalla]

Yeah theres a good chance all the metal doesn't help anything, but it's worked pretty much flawlessy against all other DX6's. Do you know if the DX7 has a stronger output or most the upgrade is in the dual link reciever? I've gotta keep the same Br6000 reciever becuase it's the only one with all channel programable fail safes.

I don't think they'd purposely mess with my signal, although I have beat them pretty bad 3 or 4 times prior this season.:D It is kinda funny though that it only messess with my two most important channels.

I'll see if the spektrum guys will respond at all.

[mgalla]

So heres what the Spektrum guys told me..

"Lockouts from signal loss are possible, as are voltage drops, interference from other Spektrum systems is impossible."

so now I'm lost....:confused: Maybe they are just in denial!;)

[M-CHASSIS-NUMBER1]

So heres what the Spektrum guys told me..

"Lockouts from signal loss are possible, as are voltage drops, interference from other Spektrum systems is impossible."

so now I'm lost....:confused: Maybe they are just in denial!;)
Hi again , is that all they said, no offer of warranty or even a discounted repair?

[mgalla]

Hi, nope thats all they said, I'm guessing there just assuming that I'm doing something wrong and their product works fine and is unfailible.

[M-CHASSIS-NUMBER1]

Hi, nope thats all they said, I'm guessing there just assuming that I'm doing something wrong and their product works fine and is unfailible.
thats a pretty poor show from SPECTRUM, I wont be buying any thing from them, you would think that a newish company would try its hardest to help you out! not just say thats impossable, an example, i bought a mountain bike recently and the frame was poorly aligned, called the company, there answer was,, we will have a rep round at your's within the day, i had a new frame within 2 days and a phat apology, if anyone from SPECTRUM READS THIS POST,, YOU SUCK!!!! (ok,so a wee bit harsh,but still ! )

[firemanbill]

Well I have had the opposite response from Spektrum...


Nothing but total concern and help form their Customer Service. I had an issue with my AR7100 losing the bind to the Tx. I had a rep spend over an hour on the phone with me working through different situations to see what might have caused it. We could not replicate the problem so they had me send it in for service. Within a week a new receiver was in hand and ready to go.

They also had a rep at SEFF this past spring and when approached he was most helpful and very thourough with explanations and such about the equipment and how it operates.

Don't eliminate a company based on the response one person got. Maybe that rep had his dog die that morning or somtehing, who knows...

[M-CHASSIS-NUMBER1]

Hi Bill, perhaps you could pm mgalla with that reps contact details, that is i am sure you will agree a pretty bad way to treat a customer, mcn1:D

[firemanbill]

Oh I agree that it's not a good way to treat a customer... That's why I said what I did at the end of the post.

I don't recall the fellas named I talked to, it's been a while. I would just try again and hope to get somebody different next time.:D

[Jason Maxamps.com]

Matt, I'm doing some research into this for ya'. What receiver are you running? Also I have a new DX7 coming my way next week. What I'm thinking is that maybe we should meet up after x-mas and see if it's the DX7 or something in his Bot. Or if you had time this weekend head to The Sky's the limit Hobbies in the Twin cities. I was just there last Saturday and they have the DX7. see if they can do a test run with ya'. Just ask for Dave.

Jason

[Jason Maxamps.com]

Matt,

One more thing did you try rebinding your TX and Receiver?

Jason

[mgalla]

Thanks Jason, I'm running the BR6000 reciever same with the other bot that was giving me troubles. The BR6000 is basically the same as the AR6000 but has programable failsafes on all channels. Spektrum sells them but I don't think it's on their site.

I wish I had tried to rebind the reciever between matches, for some reason that didn't occur to me till after the final fight.... I wonder if that might help?

I've got the bot fully unassembled right now, the frame is all bent out shape and twisted, hopefully I can get a bunch of new parts water cut, and get it back together soon. But after christmass I think it'd be good to test it out.

The Spektrum products are great, I'll deffinently continue to use them, this is the first problem I've had in over a year.... much more high quality than any other PCM or standard FM system I've ever used.:)

[mgalla]

I also for the heck of it asked spektrum if it was possible to by some means to mess up a signal and purposely cause interference on somebody elses system. Again the answer was short and not what I was hoping to hear, so either I'm imagining things or Spektrum is wrong..... hmmmm. I'll probably just give em a call one of these days instead.

"The way our Spektrum system works it is impossible, our receivers only respond to a "unique" code."

The good news is I've found a local comapny to waterjet me a couple of frames, after I get that back all I gotta do is machine the small details, then I can have it up and running again!:)

[M-CHASSIS-NUMBER1]

Hi Mgalla, have you tried plugging it all in, out of the bot on the work bench , and check the fail safes and receiver binding, apparently if you have adjusted the fail safes you will have to rebind, also did you loose your primary throttle input (or what would be the throttle if you were using it for say flight use )

[mgalla]

Yep, with the Spektrum the only way to change a fail safe is to rebind. I've tested it a bunch of times in and out of the bots since the last fight, I've never been able to reproduce the problems I had when they had their controller on those 4 times. Every time I've tested my electronics in or out of the bot everything works perectly fine, including all the failsafes. This is why I hate radio problems..... you never know if it's fixed or you're just getting lucky at the time.:D

I'm actually using the Rudder channel (left stick side to side).

Heres a shot of all my electronics spread out during a test. Sorry, it's a bit of a tangled mess.
http://s117.photobucket.com/albums/o56/booyahrobotics/?action=view&current=DSC00147.jpg

Thanks for the help!

[M-CHASSIS-NUMBER1]

all i can suggest here is that there may be a combination of interferences that all came together under those circumstances at that particular event ,noise from all those brushless motor and speed controllers all switching rapidly ,other bots doing the same and so on can come together and cause problems,
just do your best to damp down any RF noise that your bot might be generating and hope it doesn't happen again. good luck,mcn1::confused:

[mgalla]

Yeah, it could just be random..... but it did happen all 4 times... I dunno. I think I'll try rebinding it and maybe even changing to a different channel. And if that fails me I've always got a junky JR Fm laying around!:eek: