Page 190 - ITU-T Focus Group IMT-2020 Deliverables
P. 190

3                                        ITU-T Focus Group IMT-2020 Deliverables



            I.5     Lab pictures































            Ettus B200 SDR board (USB3 carries simple I/Q) – you need USB3 on server. Other SDR models may work,
            we have not tried them. We found you need to separate the TX/RX antennas by a few meters with coax
            extenders for best performance.




































            Scope – not really required but since you want to ensure low power and proper band it’s helpful. Here is
            the 2.5Ghz uplink and 2.6Ghz downlink shown on band 7 with 120Mhz separation. Band 7 block was
            graciously loaned to us by Canadian operator Telus. This is licensed spectrum so either you need a Faraday
            cage, permission or a test licence.









            184
   185   186   187   188   189   190   191   192   193   194   195