i'm using a 2.4 system on an electric car. Every now and then i lose the signal n my rc car just runs away leaving me with no control at all!!! What products on the market will apply the brakes whenever it loses any signal?

Several of the RC electronics manufacturers make them and they're called "Failsafes" and will do as you inquired, but are primarily used in nitro vehicles though they can be used in electrics if the need arises.

But my question to you would be "what's leading up to and/or contributing to your runaway problem?" Do you have a jumbled mess of wiring, power leads crossing the antenna wire, low battery packs (in the car or the transmitter), or are you running in an area predominated by overhead or underground power and telephone lines? Because all could be the potential culprit, and even having a 2.4ghz radio isn't the cure, but neither will a failsafe ~ and it's often easier cured tracing down the little things you're doing wrong or making a mess of than looking for for a miracle cure to what ails you.

i'm a basher and the area i bash around has power lines everywhere. Its the main issue i have here. As for wiring, antenna is 2inches apart from the battery wires..

what 2.4 system are you running? I have both the fasst and spektrum and both are have failsafes programmed during the binding process. When the rx loses signal it automatically goes into failsafe mode.

could mine be faulty? or is there a setting on my esc that i can reset it? i also have the spektrum 2.4 and i have it on 4 of my rcs. But two of them (Novak GTB & LRP Sphere) go nuts when i do a test run by turning of the transmitter.

I would try to rebind the misbehaving receivers. Perhaps during binding it was reading that the throttle was on.

From the manual:
It’s necessary to program the receiver to a specific transmitter so that the receiver will only recognize that transmitter, ignoring signals from any other sources. If the receiver is not bound to a transmitter, the system will not operate. Also, during the binding process, the servo fail-safe positions are set.
1. Make sure the transmitter and receiver are turned off.
2. With the receiver off, press and hold the bind button on the receiver while turning on the receiver.
3. Release the bind button when the LED flashes green.
4. With the transmitter off, Place the transmitter steering wheel, throttle trigger and auxiliary channels in their desired fail-safe positions (normally brake and straight-ahead steering).
5. Press and hold the bind button on the transmitter while turning on
the transmitter.
6. Release the bind button after the green LED flashes.
After several seconds the LED on the receiver and the LED on the transmitter will quit flashing and remain solid, indicating that the binding process was successful. Once binding is complete, the system will automatically connect.

Afterward, turn off the remote when you can control the car and see what happens.

Nice one!! Everything works perfectly now thanks so much for all the help Kuzo!! nothing is faulty after all... just another human error heheh thanks again

Anytime and I'm glad it worked. I did the same thing myself. I have 4 kids with cars and spektrums along with my own. One had a Neo 3 star which would go full throttle when it turned on for a couple seconds. Once the radio linked up it would stop. Turns out the failsafe was set at full throttle. Whoops

same as mine... had to set max brakes when re calibrated. But its all good now =]
thanks again =]

most of them do have a function in there but it must be set 1st. not as 'PnP' as we think, bad news to skip that step before running. especially nitro

R

I know this doesnt help, but I was on vacation a long time ago. Driving my Tamiya midnight pumpkin on the beach. And all at once it took off all on its own and SPLASH. It hit the ocean and was on its way out to sea. I got it back but it was never the same. The saltwater and mechanical speed control(yes I'm that old) just didnt mix. Moral of the story is you really need to try hard to find your problem and fix it. A runaway rc is a bad bad bad thing..