MER and Constellation

April 3, 2006.

PROMAX-26 DOCSIS analyserMER and Constellation

These measurements are decisive for the early detection of excessive noise in the system or intermodulation problems in the downstream. In general, a lower MER can mean system operating problems, as well as a slow speed due to the packets loss and interruptions.

The display of the constellation diagram and the bit error rate (BER) are other key measurements to evaluate the performance of the downstream.

MER and Constellation