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The Keysight 8712ES features an S-parameter test set with full two-port vector-error correction, providing complete and accurate measurements of device S-parameters. Two independent channels can measure and display two parameters such as S21 (transmission) and S11 (reflection) in a variety of formats including delay and SWR, on rectangular, polar or Smith-chart displays. The Keysight 8712ES has a frequency range of 300 kHz to 1.3 GHz.