What sort of comms did these rigs use? Satellite? It depends. Satelite was often a fallback. When they where moored and in operation they would often use micro

What sort of comms did these rigs use? Satellite? It depends. Satelite was often a fallback. When they where moored and in operation they would often use microwave-link to a nearby "access point" (another more permanent rig with fiber connection to shore). And how advanced were the electronic systems on these rigs? I suppose they had to run everything from SCADA through to heating for accommodation blocks? I only know about the radio and radar systems. I would describe the ones I supported as reasonably simple except for the fact that signals had to pass through a number of networks belonging to our customers, our customers suppliers and even competitors before reaching their destinations.