Using a Microwave System Analyze to Measure Satellite End-to-End Group Delay

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  • Author: Graham Stevens
There is increasing demand for bandwidth on satellite systems, as with almost all telecoms systems, due to growing levels of Internet traffic, digital TV and other digital services being carried on these links. Consequently satellite operators are being forced to use all of the available bandwidth right up to the band edges, where signal quaity can be degraded by components such as filters within the satellite transponder and the ground systems within the transmission path. Established satellite transponders are typically configured with channel bandwidths in the 36-72 MHz range—depending on the particular satellite system—although it is not unusual for newer systems to be configured with bandwidths of several hundreds of megahertz.