Agilent / HP / Keysight 11757B
11757B Multipath Fading Simulator/Signature Test Set
This Multipath fading characterizes the equalizers in modern digital microwave radios by introducing a precisely controlled notch in and around the radio's transmission bandwidth.
This allows precise measurements of the equalizers' ability to compensate for multipath fading.
Testing susceptibility to multipath conditions is especially important since fading is recognized as one of the predominant causes of unacceptable bit error rate and link outages.
This unit offers accurate, economical multipath testing and records measurements automatically on a built in printer.
Automatic multipath signature measurements
Measures and prints static M curves, dynamic M and S curves, recovery signatures, recovery times, and dispersive fade margin
High performance, lightweight, and economical
Complex modulations: 64 & 256QAM
Intermodulation: Less than –50dBc