Traduction de «Station de contrôle commune au sol » (Français → Anglais) :

actual availability of the elements of the ground-based infrastructure (such as ground stations, control centres) versus planned availability;

F. Electromagnetic compatibility between rolling stock and control-command trackside equipment: to ensure that new rolling stock accepted for use on all or part of the trans-European high-speed network will be compatible with the associated control-command infrastructure, there shall be a common specification describing the limits to conducted and induced traction current as well as electromagnetic field characteristics to be permitted; refer to Annex A, index 4b.

All those satellites would be linked to a network of control stations on the ground.

Let us remember, briefly, that the GALILEO satellite navigation programme is an ambitious project which provides for the deployment of an arrangement of satellites in orbit at a distance of about 20 000 km from the Earth, linked to a network of ground control stations.

D. whereas the surveillance system depends, in particular, upon worldwide interception of satellite communications, although in areas characterised by a high volume of communications only a very small proportion of those communications are transmitted by satellite; whereas this means that the majority of communications cannot be intercepted by earth stations, but only by tapping cables and intercepting radio signals, something which - as the investigations carried out in connection with the report have shown - is possible only to a limited extent; whereas the numbers of personnel required for the final analysis of intercepted communic ...[+++]ations imposes further restrictions; whereas, therefore, the UKUSA states have access to only a very limited proportion of cable and radio communications and can analyse an even more limited proportion of those communications, and whereas, further, however extensive the resources and capabilities for the interception of communications may be, the extremely high volume of traffic makes exhaustive, detailed monitoring of all communications impossible in practice,

D. whereas the surveillance system depends, in particular, upon worldwide interception of satellite communications, although in areas characterised by a high volume of communications only a very small proportion of those communications are transmitted by satellite; whereas this means that the majority of communications cannot be intercepted by earth stations, but only by tapping cables and intercepting radio signals, something which - as the investigations carried out in connection with the report have shown - is possible only to a limited extent; whereas the numbers of personnel required for the final analysis of intercepted communica ...[+++]tions imposes further restrictions; whereas, therefore, the UKUSA states have access to only a very limited proportion of cable and radio communications and can analyse an even more limited proportion of those communications, and whereas, further, however extensive the resources and capabilities for the interception of communications may be, the extremely high volume of traffic makes exhaustive, detailed monitoring of all communications impossible in practice,