Dx3e and Tekin Fxr Compatability

[RickM]

I need a little help here. I am running a tekin fxr with a spektrum dx3e and a spektrum sr300. I am not getting a very strong drag brake signal. As a result I borrowed a friends fxr and it appears that the drag brake issue is still not working. Changed motors, no good. So I think it might be my radio or reciever. I read where someone was suggesting that the DX3r is not a good radio with the FXR. Apparently I need to clear up some baseline noise. Can I do this with a new reciever or am I going to need a new radio too.

[ultimate_monkey]

umm u say dx3e to begin with, then change to dx3r..... which one?

do u have the tekin hot link? it sounds like u have the drag brake on the esc turned down... u can check vic the mode / increase buttons on the esc aswell. the drag brak is from the esc to motor when there is 0 throttle / reverse input. also what motor are you runing?

im running the fxr with dx3r and have great drage break

[RickM]

Sorry. I definitely have the dx3e. I also have the hotwire with the drag brake at 100. I spent about an hour diagnosing it with tekin and have tried everything I can to find fault in the esc and changing esc to the same result makes me think it's radio or reciever related.

[meffie]

I run a dx3r with the fxr, no issues at all, and my buddy runs the dx3e with the fxr, again no issues. Other than that I can offer no assistance :P

[passinby]

i run a dx3e witha fxr in several of my truck with no problems and have plenty of drag brake but if you dont have your throttle trim completely zero out it will take away your drag brake hope this helped

[BostonHxC]

I run a regular DX 3.0 with an FXR and have no issues. Have you actually tried another brand transmitter/receiver to see if that is actually the issue? If you do not have an extra, possibly take it to a local hobby shop and test with their equipment?

[RickM]

Well I am starting to now feel a little stupid. I am now realizing I did not even think to rebind my radio when I switched ESC's and I think this might be my issue. I am about to give it a go and see what happens.

[RickM]

Just rebound and it did not fix it. How bout this. When you say the trottle trims have to be at zero. There are three trottle knobs. Two on top and one of the side. I got the one on the side at zero but the ones on the forward and reverse on the top are set all the way. I am thinking that is wrong.

[Scattman]

You need to set the trims to neutral before you calibrate it.

You should have checked this first.

[RickM]

As far as the trims are concerned. I have them set at zero I think. i set the trim on top of the radio for foward and reverse at zero and it would not calibrate. my trim on the side of the radio is definitely at zero.

[amullet]

I am also having issues with my Dx3e and Fxr. Could someone please post pictures of how I should have the trims set when I bind the Dx3e?

[SMR 510RR]

It really doesnt matter where the throttle trim is when you calibrate it. Just dont mess with it after you calibrate. Binding and calibrating have nothing to do with one another. Bind your radio to your receiver, then calibrate your esc so that it knows where neutral is as well as full throttle in both directions. I suggest reading the FXR's manual...It can be found here:http://www.teamtekin.com/manuals/FXManual.pdf

[CreepyCrawl]

Originally Posted by SMR 510RR

It really doesnt matter where the throttle trim is when you calibrate it. Just dont mess with it after you calibrate.

This statement makes zero sense.

It most certainly matters for initial set up, and saying not to touch anything after calibration is insane. EPA and trim adjustments are there for a reason and you're suggesting that he not take advantage of them?

If I followed your advice, all the settings I've tweaked in my 3R to dial in the perfect throttle response would be rendered useless.

Did you read the manual?

NOTE: Before Radio Calibrating, ensure speed control is
hooked up to the receiver, a charged battery is properly connected,
and the transmitter is turned on. On your radio, set all
trim adjustments to the middle, and set throttle/brake EPAs to
100%. Ensure that your throttle direction is set to “normal”

Calibration is really very simple, you just press and hold the
MODE button for 3 seconds to enter radio calibrate, let the
speed control “find” your neutral, then let it “find” your full
throttle and full brake. If you are unsure how to perform this
procedure, follow the detailed steps outlined below.

Startup Sequence
After calibrating to your radio, when the speed control power
switch is turned ON the unit will begin looking for the neutral
signal. If a neutral signal is found the Arming Sequence
(flashes LEDs/chime) will occur followed by LED4 on, then
flashing to LED1. NOTE: If Arming Sequence does not occur
see Trouble Shooting section of this manual before proceeding.
NOTE: If any problems occur, repeat radio calibration.

[SMR 510RR]

Originally Posted by CreepyCrawl

This statement makes zero sense.

It most certainly matters for initial set up, and saying not to touch anything after calibration is insane. EPA and trim adjustments are there for a reason and you're suggesting that he not take advantage of them?

If I followed your advice, all the settings I've tweaked in my 3R to dial in the perfect throttle response would be rendered useless.

Did you read the manual?

NOTE: Before Radio Calibrating, ensure speed control is
hooked up to the receiver, a charged battery is properly connected,
and the transmitter is turned on. On your radio, set all
trim adjustments to the middle, and set throttle/brake EPAs to
100%. Ensure that your throttle direction is set to “normal”

Calibration is really very simple, you just press and hold the
MODE button for 3 seconds to enter radio calibrate, let the
speed control “find” your neutral, then let it “find” your full
throttle and full brake. If you are unsure how to perform this
procedure, follow the detailed steps outlined below.

Startup Sequence
After calibrating to your radio, when the speed control power
switch is turned ON the unit will begin looking for the neutral
signal. If a neutral signal is found the Arming Sequence
(flashes LEDs/chime) will occur followed by LED4 on, then
flashing to LED1. NOTE: If Arming Sequence does not occur
see Trouble Shooting section of this manual before proceeding.
NOTE: If any problems occur, repeat radio calibration.

I was simply talking about the throttle trim and the 3R and 3E are very different radios. All I am saying is that if the trim isnt perfectly centered its not going to be a huge deal, if you calibrate it and then move it then you will find yourself in a similar situation to the guys posting up with problems. Obviously I am not recommending that you should calibrate with your trim all the way to one side. After doing the wantasummit hack to my DX3E I am running dual FXR's without a throttle trim...Havent had a problem yet!

What I think is happening to these guys is that their trim is too far forward so it isnt engaging full drag brake because it isnt recognizing neutral when the trigger is released. In that situation recalibrating and leaving the trim where it was when calibrating will resolve the issue. If that doesnt resolve the issue there may be some programming issues that need to get worked out.

Im not understanding why you would adjust throttle epa's after calibrating either. If you extend the range then you will not reach full throttle and if you shorten it you will get full throttle before a full trigger pull. Why would you want to do that?