Hi dicky.
Thanks for the reply. Unfortunately due to laptop throwing a hizzy fit I am having to post with my iPad an I have no pics of the equipment on it at the moment.
The system is a turborix fs-ct6a and the receivers all have the same on them. They are all 6 channel and all have a small grey ariel wire .the box thingy is less than half the size of the receiver, have a red, white & black wire that plugs into the receiver and also have a small grey wire which I assume is also an ariel.....
I have plugged this all into one of my models and it seems to be working fine, rudder, sail winch and small motor.
My concern is someone told me that I could not use aircraft receivers in boats but I am not sure what the difference might be.
Cheers again.