EXPERIMENTAL RESEARCH ON 140 Mb/s - 16QAM - 11 GHz AND 70 Mb/s - 8 PSK - 7/11 GHz DIGITAL RADIO HOP.

Field experiments are carried out using two digital radio systems (70 Mb/s-8PSK and 140 Mb/s-16QAM), recently developed by GTE Telecomunicazioni, in order to evaluated the outage caused by multipath fading and the effectiveness of adaptive equalizers, space diversity and frequency diversity. A description is given of the two radio systems as well as the experimental set up and the results available at present.