From Anritsu Company

As wireless systems proliferate worldwide, the number one enemy of wireless systems designers and service providers is signal interference. Interference hampers coverage and capacity, and limits the effectiveness of both new and existing systems. It is an unavoidable fact that wireless communications systems must coexist in extremely complicated signal environments. These environments are comprised of multiple operating wireless networks ranging from mobile communication services to specialized mobile radio and paging/broadcast systems. At the same time, wireless local area networks (WLANs) and digital video broadcasting are introducing new technologies and signal sources that further threaten to disrupt wireless communications service.

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Bit Error Rate Testers
Bit error rate testers are devices or procedures that measure the bit error rate (BER) for a specific transmission.
Network Test Equipment
Network test equipment is used to test, probe, and analyze telecommunication, network and telephone systems.
Network and Protocol Analyzers
Network analyzers and protocol analyzers are test equipment used to troubleshoot and analyze network problems.

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