L-DACS1 laboratory demonstrator development and compatibility measurement set-up

In this paper, the L-DACS1 physical layer laboratory demonstrator development is described which has been recently carried out by the German Aerospace Center (DLR). The main goal of the lab demonstrator is to perform first compatibility measurements between L-DACS1 and legacy L-band systems where interference from L-DACS1 towards the legacy systems as well as interference from the legacy systems onto the L-DACS1 receiver is considered. In addition to the demonstrator description, results from functional tests of the lab demonstrator as well as the measurement scenarios foreseen for compatibility testing are presented. The compatibility measurements will take place at the labs of the Deutsche Flugsicherung GmbH (DFS) - the German ATC provider - in fall this year.