Hi; i've been running a spektrum sr3000 in my truggy and from time to time it just allows my car to lose all control. I do have the fail safe set but this is garbage when it cuts out on me. I'm running a 7.4v lipo 3000mah 30C as my power. My battery is always fully charged, hitec servos....Not sure what the deal is. At first i was thinking brownout but my battery is new and holds a charge well.

Take the receiver out, take it apart, and see if any dirt got into it (even if it's in a receiver box). If so blow it out. Seen this cause that issue from time to time. Also, rebind it just to be safe.

I would get brown outs with those model RX's. I added one of these in link below and they stopped the brownouts for me due to amperage hungry servo's.

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

I agree with putting a glitch buster on the receiver, spektrum receivers are known to brown out under heavy servo load. Mine did it till i put a glitch buster on it.