I would like to point out that there is a difference beteen different conspicuity codes.
In EBBU FIR, 7000 is used by VFR flights. This use is very different from 1000 which is used by a/c operating in Mode S declared airspace. 1000 means that aircraft will be identified by using the Mode S a/c ID instead of a discrete code.
UK airspace is not Mode S yet so the 1000 code would not be used.
P.s.: just read through the relevant section of the UK AIP and it seems they do not see 1000 as a conspicuity code... Seems we have a different definition for 'Conspicuity code'
Last edited by EBBU; 11th Jul 2013 at 20:18.