thanks again,

the receiver is 35MHZ (little sticker on the back) i think its just the pos/neg shift thing, so ill probably order the GWS transmitter for this receiver and when i get my next Rx ill make sure its compatable with the sanwa vg 600. Mean while if theres anyone who can explain this pos/neg shift i'll be much appreciated.

This hobby cost money, even if you go with a 35 quid model, youll need to spend at least another 100 to get it flying [:@]

joseph.