For shit's and giggles, change your servos, I had a Hitec do the same thing.

IMO,


If your lucky the Spectrum will never function because you will not like the looks of your boat if you put it in the water with one of those junk radio's. They flat do not work on the water in fast gas boats. It is not IF but WHEN and you usually won't have to wait long.

It don't matter if they are marine receivers or not. Two 14" long antenna's and they still don't guarrantee no loss of signal.

Problem with all the Spectrum stuff is one tiny glitch and even if signal is regained in one millisecond the receiver takes a full 15 seconds to reboot and give control again. By then it is much too late.

i really don't think it is a servo thing... because the throttle servo is futaba and doing the same thing....... and like i said before with the engine not running everything works just fine.....????????????

and danielplace...i have flown my planes for years on spectrum and never had any problems at all ...why is it junk on water..

using a standard 4.9 volt 4 cell pack.....

ok just want to say thanks to all that replied ,,i did take plug out and it is a champion cj8..so i am going to ace to get a rcj8 plug and we'll see if that helps.... i will let you all know :0 i hope that is what it is because i want to run this bad boy !!!!!

Buy NGK. Champions tend to crap out quickly and cause head aches. JMO

Always use a quality resistor type plug for R/C applications.

JA

It is a known fact that Spectrum doesn't work well on the water. Their best Marine receivers still do the same thing they all do. Lost reception.

What you have used in a airplane is irrelevant to use on the water.

Research the topic and see how many boaters they have put on the beach with total loss of control. Destroyed two brand new boats with one and learnt the hard way.

There are many times more Futaba's out there in gas r/c boats yet it is the Spectrums you always hear doing stupid stuff more often than any Futaba system. It is pretty much the same way for the land based users. 99% will all tell you forget a Spectrum and
only buy a Futaba or just not Spectrum.

Go to a gas r/c boat race and tell me how many Spectrums you see and then how many have Futaba. There is a good reason for that.

Just trying to help sharing my own and thousands of others experience with Spectrum.

Good luck. Hope it ends happy and the bank doesn't tear it up too bad.

Ron,
You want to know what 99% of all 2.4ghz antenna's are on our receivers and transmitters.
It is quite a bit simpler than that.
It is nothing but a length of coax wire with a short 1" or so on the end that has the shield stripped back exposing the core. Yep just coax wire. No coil for sure. Wire with the end stripped.

www.electroschematics.com/712/...oaxial-antenna/
This is all they are except they don't do the thing with the shield. The shield is just stripped off the end.

what is a decent futaba set up i can use for this boat..any recommendations..i am going to return the spectrum rx ... once again thanks guys ! also the guy at the hobby shop said not to use a stick style radio.only pistol grip why is that. ?they both are transmitters who cares if its pistol or stick..hell the original clod busters etc came with stick radios...