When we changed to NODE equipment in the early 1990s, it was rumoured that the headsets were 'live' all the time, and that systems/management could listen in at any time, should they so wish.
Whether it was true, I don't know, but it wouldn't be difficult to have recorded it on a separate channel.
Will there be a requirement for ambient mikes on the supervisor's desks too? Those who man them play key parts in most ATC incidents.
Last edited by ZOOKER; 11th Feb 2017 at 15:46.