Agilent Technologies (HP) HP 37717A

SDH/PDH Test Set Options: UH2/UH4/UH6/UHE/UHK/UHN/UKJ/US1/1CW The Agilent 37717A is a multirate bit error measuring test set. It can generate and receive a range of data pattern, and provide analysis of receive errors to G821 requirements. The jitter measurement module for the HP 37717A PDH/SDH BER and jitter test set is the first in a new generation of jitter measurement implementations. To allow accurate measurement of jitter created by the SDH network into the PDH network, the following techniques have been employed. The voltage-controlled oscillator (VCO) used to track the carrier frequency signal being received has a bandwidth of 4 Hz. This will provide a better reference for the measurement of long transients produced by pointer activity. Separate positive and negative peak detectors will ensure that all spikes of jitter are captured irrespective of when they occur within the measurement period.