Ok, so things are progressing slowly at the moment. I’m testing a setup with the NMRA Arduino DCC Code at the moment – details can be found here. I’m using the ‘standard’ DCC interface circuit at the moment –

However, I am finding that there is a noticeable amount of jitter present on the servos. Strangely enough, disconnecting the DCC input resolves the issue. I can only assume at this stage that this is probably being introduced by the AC DCC signal?