Thanks Haverlock, I'm going to use tape to keep it in the position that you recommend. hopefully the tape wont get seen!

the 2.4MHz aerials are better in a V rather than both true vertical. 45degrees to a true vertical and at 90 degrees to each other.

Hi Mark, thanks I'm going to drill a hole through the deck. the way the superstructure sits on the deck no one will be able to see the aerials! they will go 90 degrees up into the deck house.

Hi Dave thanks again, I'm looking forward to posting my video! when I take her to the pond! I've never taken her to the pond so this will be her maiden voyage. I'll post soon!

Hi ED
Glad to see you have solved the problem. I hope you enjoy many happy hours sailing
Dave 😀

Hi Ed, try to get both aerials up into the deck house, also try to get them at about 90 degrees apart, it's all part of the signal reception, 2.4 g signals don't pass though water.

Mark

Hi Mark, thanks to you and the rest of the guys I was able to figure out that the two coils had to go.
that said I have placed the receiver amidships and under the deck whist letting one of the receiver aerials go up and in to the deck house (dual aerial receiver)so I accomplished what I wanted, to have my second tugboat operational...

Hi Ed, you have the bug !!!! told you there is all the help you need on the web site

Mark

Thanks Dave, and to all that helped me with my RFI problem. I have removed the coils and all systems are a go. I can know run my Southampton with no problems! I'm also going to order a servo tester just in case. I am very happy!!! 😊 Bathtub test passed!

Hi Dave, I thought those coils might have something to do with 27Mhz. the controller I replaced was a 27Mhz receiver. so what I'm going to do is take them off! keeping my fingers crossed. oh thanks for the advice really appreciate it!

Hi figtree7nts
The coils were common in the early days of rc. They are actually inductors which in combination with the capacitors presented a very high inductance (resistance) to rf interference over a range of frequencies, and were designed to reduce interference in the Rc bands. This would have been 27 or 40Mhz depending on the chosen frequency.
Modern rx have much better built in rejection systems and usually benefit from just the three capacitors across the motor and case.
Modern ESCs operate at fairly high frequencies which are passed as pulses of power to the motor. it is these high frequencies that will be reacting with the inductors. They could be generating rf signals that your rx is receiving or interfering with the internal circuitry in the ESC by delaying the feedback from the motor.
If you don't want to remove the inductors just short them out with a length of wire of sufficient gauge to carry the current.
Hope you manage to fix the problem
Dave

Hi Dave M,
Thanks for every thing look forward to reading the article but, I'm a little suspicious about the two coils that are connected to the motors. so what I'm planning to do is unsolder then, making sure the capacitors have a good connection right! and hopefully my RFI problem will be fixed!

There were two articles reviewing the tug MMI Oct 2004 and Model Boats Nov 2004. There was an article describing the conversion done at a later date but I can't locate at present. if I can find at a later date I will post details.
Dave

Just checked the article on the Sothhampton was in MMI Oct 2004
Dave

Hi figtree7nts
I suggest you remove the two coils from your motor, with a modern ESC they will be generating lots of RFI.
You have already moved the Rx above the water line and into a cabin and presumably placed the two arials pointing up.
Providing all your wiring is neat with the high power motor and battery wires remote from and rx/servo leads there should be no jittering.
I am assuming your Tx/Rx are correctly bound? if you are unsure I suggest you re bind as I have experienced problems in the past. Best to do this at home where there is no chance of another Tx causing a conflict.
If you still have problems and your radio works ok in another model then the motor is the probable cause. it's some years since I saw a fellow modeller sailing such a model so I can't recall the exact details re the motor and access. There was an article in Model Boats / MMI covering conversion. I will look in my database and see if I have a copy.
Good luck
Dave

do you own a servo tester?

http://www.hobbyking.com/hobbyking/store/__8296__Turnigy_Servo_Tester.html

available from LOTS of other places shop around.

Use one of them in place of your receiver that way you can test the ESC/motor setup without a radio link.

With any problem you have to decide where it is. You have 2 variables so for a few pounds you can do tests and its always worth keeping one around.

Hi Haverlock, I used the model one time about four years ago! it's basically never been used. I just wanted to modernize the model. by putting a 2.4Ghz controller. maybe I'm using the wrong word it's more like glitching! as I throttle up! any clues?

Thanks Mark, as a matter of fact I just received my receive extenders. so I'm going to move the receiver to the pilot house also I don't have another receiver to see if it's the receiver! as for the black resistors I think there suppose to be used for a 27Mhz system??? I don't know just guessing? any hints will help!

How worn are the brushes on your motors? The older the brushes as a rule the more they spark and sparks == RF noise.

Black coils ? RF chokes?

Have you checked the suppression of these motors?

When you say "feedback" what do you mean? Some ESCs have problems with the switching speeds of some 2.4MHz systems.

Unfortunately fault finding at a distance is never easy so all we can do is guess.

Hi Ed, are the antenna wires below the water line? does this occur close to or at range? have you a second receiver to check the installation? as Derek said, if you can extend the receiver into the wheelhouse area that might help, as your first question the black resistors on the motors, I cant get mine at the moment, will come back on that.

Mark

Thanks Derek, I haven't lengthen the aerial I'm not sure what's going on. my receiver is a dual antenna receiver! I think I'll try the servo extender cables, I'm waiting for some in the mail! after that I'm not sure!

Try moving the receiver as far as possible from the motors & controllers. Keep antenna horizontal. I use servo extension cables to place the receiver in the superstructure if possible. You haven't by any chance extended the antenna on the receiver have you. This is a definite no, it causes all sorts of issues