407s work great. I have several and they will work with the faster frame rate too. The new 2 channel 210S work well too if you just need them for 2 channel applications. I use these in my offroad stuff. They work great too and are only 50$. The only difference between the 407 and 409 is that the 409 has the coaxial antenna for longer range. I have had no range problems with the other single wire antenna receivers 407 and 210.

You can try to connect capacitor (4700x10) to free channel of receiver. Maybe this help. I had the same problem with Spektrum. With capacitor I havn't any problems.

http://www.amainhobbies.com/product_...tage-Protector

http://www.amainhobbies.com/product_...iver-Capacitor

http://www.amainhobbies.com/product_...oise-Capacitor

thanks for the help

hello guys, do I need to cover my receiver when being used on a very dusty environment?

No doubt, go for the Eurus. I have had dx3r and 4pk, but after I tried a helios I had to sell my 4pk after having it 1 month. It is the best radio to hold. Period. Regarding servos I would recommend JR, they are the best servos out there in my opinion.
amainhobbies.com/product_info.php/cPath/61_100/products_id/19298/n/JR-Z9100S-Digital-Ultra-Hi-Speed-Surface-Servo-Metal-Gear

Cheers!

All for the Eurus it really is the best radio to hold. But it also is the most costly.

As for the servos. I would stay far away from JR, as they are over priced almost as bad a the futaba ones. I have used every brand of servo and while futaba was always pretty good. The ace servo's are great, and the spektrum servo's with the same ratings as the JR ones are cheaper. And I am pretty sure that JR is spektrum so I am a little confused at why the JR ones are so much more. Anyway, lately I have switched for on road anyway, to the savox servo. Check them out, they are essentially the same servos spec wise as the spektrum servos just cheaper. I have had zero issues with the ones I race. just my .2c

But definitely agree on the radio.

Hello,

Is the response mode setting for the whole radio, or can different response modes be set for different models? Can I have model 1 on DD:NORM and model 2 on DD:ADV? The car for model 1 has a 408s receiver and the car on model 2 has a 407s receiver.

Thanks in advance.

You can, but it won't stick from model to model, you will need to switch it each time you change the model. I do this because a couple of the servos I use do not like the adv mode, but work fine under NORM.

Thanks. I was thinking that was the case, but didn't know if I was missing something.

This has probably been asked before but can anyone tell if the KR-409S reciever or any other ko reciever compatabile with Eurus EX10 can run straight lipo (no regulator)...
Any help would be greatly appreciated

So no one knows how Ralph gets his KO to be left handed?

I am pretty sure that the KR-407S, 409S, and the 210S all can handle the 7.4 volts. It lists the operating voltage as 4.8 - 7.4V.

.

It's probably a custom radio by KO Propo. I know Joel Johnson had the only left handed Helios EX-10 I've ever seen.

If you win a World Championship you might get one also.


Pass you soon...

I will post this here, since it seems a lot of you have had experience with the EX-10 Helios. I have not had any trouble with this radio until the last couple of weeks, with my 2.4ghz module. I generally only turn on my radio at club races where it's just the group of guys on the driver's stand running their cars. However, I have gone to race at another facility (for on-road) where they also have a lot of people practicing off-road while we race, and my radio has started flaking out. I turn on the radio and the light on the transmitter module refuses to light up, and the receiver doesn't see a signal when the car is turned on. It's gotten to the point where I think I almost have to just turn the thing on and off until I get it to light up (which happens eventually), and then just leave it on the rest of the night, there. If I don't, I'll miss my race while I sit there turning the thing on and off, praying for the light to come on

There were a couple of KO Propo sponsored guys at the track the race the first day it happened and they swapped out my module for a new one, stating that mine was old and needed updating. They let me keep the new module, in fact...outstanding act of customer service by those guys. Unfortunately, the problem just keeps on happening. So my assumption is that the module is just having too much difficulty finding a radio channel to lock onto, with all the competing spread spectrum radios hopping frequencies all the time and whatnot?

Anyone have experience with this that knows what the solution is, or if there even is one? Does the Eurus have this issue, or has it been eliminated? I really don't want to have to go replace four receivers and my radio to fix the problem, if I don't have to - much as I'd like to have a Eurus!

The only time I have seen problems with the radio is if I turn the car on first. The radio does not like this at all. It will work when you don't have any other cars using the KO stuff. But if there are many, the radio does not get to scan for open channels before picking one, then when you turn your car on the receiver will lock on to the same channel as the radio. If you do it the other way, the receiver does not scan so it will be on the same (at least this is my understanding) channel as it was the last time you ran and then the radio has to try to find it. Which eliminates the open channel scan. But for the light not coming on, I have never seen this.