2 transmitters/one vehicle - RC-Monster Forums

sapper_triple6 · **2 transmitters/one vehicle -** 04.03.2007, 03:55 PM

I bought my 3y/o a stampede xl-5. On the half speed he can control it fairly well but still occasionally runs into everything. I usually make him keep the antenna down all the way so he cant drive off very far. If I get a transmitter on the same freq. with the antenna up,will it overpower his so I can take control of his truck if I need to?

BP-Revo · 04.03.2007, 04:01 PM

It probably won't completely overpower him. It will jump back and forth between listening to both of you. This is assuming the ESC does not kick in its failsafe. The closer it is, the more it will listen to him (assuming you two are standing next to eachother).

For example, if the truck is on the edges of his radio range with hte antenna down, and you have the antenna up and try to control it, you will most likely overpower him. But if the truck is rather close, you will split the control more.

One idea is to run rechargables in the transmitter. This will supply 9.6V of power to his. If you then run 10 rechargeables (finding a way to add 2 more cells, possibly by using 2/3AA's like the ones in 18T's and such), and run 12V, which is what the TQ's are supposed to be run at (1.5V alkaline x 8 = 12v), then you will have even more power, especially with the antenna up.

The last option is just to use the failsafe mode of the ESC. When the ESC detects both transmitters, it will just shut down.

sapper_triple6 · 04.03.2007, 04:05 PM

thx for the info

Serum · 04.03.2007, 04:29 PM

no, that won't work. While one is in neutral, it is sending pulses that it's in neutral.

BrianG · 04.03.2007, 04:40 PM

IMO, the best way to "take over" the R/C would be to install two receivers on two seperate channels and use the AUX channel of the "master" radio to choose whether the master or secondary radio is being used. The output of the master AUX channel could be fed to a switching unit (relays) that would switch the throttle and steering channels between the master and secondary receiver. Even then, the interruption of signal during the switching phase or the sudden change might trip the ESCs failsafe.

Personally, I would just get a Tyco or something similar for a 3 year old. They are slow enough to control and don't have great range.

skellyo · 04.03.2007, 04:45 PM

Quote:

Originally Posted by BrianG

Personally, I would just get a Tyco or something similar for a 3 year old. They are slow enough to control and don't have great range.

Why not a Rock Crawler instead? It's something that's more than slow enough to control, and if he does hit something with it and by chance break it, the part can be replaced.

BrianG · 04.03.2007, 04:52 PM

True, but doesn't address the desired range limitation...

sapper_triple6 · 04.03.2007, 05:01 PM

at least with a rock crawler it could be chased down easily. I think I will just keep him on the pede, he'll eventually learn. Parts dont break that much on half speed and if they do they're cheap. Just have to keep myself from driving it. Thats me driving his pede at the skatepark if you checked out my other thread.