Glitching Ko Esprit 3 Spektrum

[Southwell]

Hi,

Does anyone know any obvious things to check on an esprit 3 with spektrum module? It randomly glitches when sitting still, sometimes throttle, sometimes steering. I had issues driving it indoors, but i didn't get this problem outdoors.
I have tried a couple of receivers and completely different electrics, but it seems to be the actual transmitter.
Before i shell out for a new setup can anyone suggest any checks?


Thanks