This Call for Tenders concerns the procurement of a set of “New EUROCONTROL Receivers”. These receivers will be used in a system monitoring the usage of 1030/1090 MHz in Europe. The receivers will not be used in a system providing operational surveillance and are therefore expected to be low cost receivers.
For monitoring of the number of aircraft replies, aircraft flying relatively close to the receiver (up to few tens of nautical miles) would be typically evaluated. The received number of replies from aircraft flying further away would typically not be complete, because of garbling effects (overlapping of messages, where the weaker one is often lost). For this reason, to get a good monitoring coverage, high number of well-placed receivers is much more important than very long range or very high sensitivity receiver. It is expected that in total about 80 receivers might be necessary.Click for more info