The TNS547 DTT Monitor continuously verifies Quality of Service (QoS) parameters at the terrestrial transmission sites. TNS547 is an ideal toolbox for monitoring transmitter inputs and outputs and control the reliability in terrestrial networks. As broadcast infrastructures become increasingly complex, the TNS547 DTT Monitor simplifies operations by continuously monitoring Quality of Service (QoS) parameters at critical points in the terrestrial transmission chain. The TNS547 provides efficient monitoring of all major interfaces, formats and layers found in DVB terrestrial networks, including the transmitter input signals and off-air RF signals, simplifying operations and increasing network reliability. In addition to providing accurate measurements TNS547 includes many features designed to facilitate the network operations. Template monitoring, trend monitoring, SLA monitoring and SFN monitoring are some of the features that provide intuitive information to the operator. Minimize costs for monitoring equipment by simultaneously monitoring all major interfaces, formats and layers found in DVB terrestrial networks. Simplify the planning of maintenance intervals at the transmission sites with the SLA monitoring. Round robin operation reduces the number of units for the monitoring of several multiplexes. Integrated with leading NMS systems.