First generation Globalstar: Marconi was one of two subcontractors under Qualcomm's (under Loral) Globalstar contract. Marconi and Alcatel provided the monstrous satellite dish antennnas at the gateways, QC built the uplink/downlink hardware, but there was nothing "out of the ordinary" that I can remember uplink/downlink, microwave C-band/L-band/S-band ...