N

Noise
Any unwanted signal that must be separated from the received carrier to extract the data to be received.


NMS
Network Management System; usually based on a PC or workstation platform, the NMS can be the most complex part of the satellite system. The functionality in a good network management system greatly assists BT to provide a high level of service and management reporting.

NTSC
National Television Standards Committee, the US standards authority for TV and the US TV standard.