Me again!
I just wondered whether the Bournemouth Tower controller has a radar screen or is it purely 'visual'? A few weeks ago on a busy Saturday, there were around 4 or 5 aircraft including us, instructed to orbit at various points in both the left- and right-hand circuit while a Ryanair flight departed.
It made me wonder whether the controller simply kept a picture in his mind of where we all were in the circuit (along with callsigns), or whether he could see us on radar.
D'oh- thinking about it, I may be able to answer my own question .. re-entering the zone we requested circuits and we were issued a squawk, so I suppose that answers that question.
Any anecdotes or insights are always welcome though!