I'm also on ADSL2+ in Perth, my area isn't going to get NBN for the next 3 years. When I've finished moving house I'll open up my modem and have a see if there

I'm also on ADSL2+ in Perth, my area isn't going to get NBN for the next 3 years. When I've finished moving house I'll open up my modem and have a see if there are similar power noise problems - I've got some decent electronics equipment (scope/SMD soldering station/dmms). If you're in Perth then you're welcome to join in?