Keysight 85024A User's And Service Manual

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Keysight 85024A User's And Service Manual Manual pdf 41 page image

Performance Tests 5Keysight 85024A User’s and Service Guide 41Median Gain and Frequency Response FlatnessDescriptionThis test procedure performs a response calibration on the analyzer and thenmeasures the gain of the probe over frequency. Maximum and minimum gains intwo different frequency bands are used to determine the probe performance.Procedure1 Preset the analyzer using the [PRESET] hardkey.2 Set the frequency sweep range for 300 kHz to 3 GHz.3 Set the analyzer for a transmission (S21) measurement.4 Connect a type-N cable between the output port and input port on theanalyzer.5 Perform a response calibration on the analyzer. The trace on the analyzershould now be a flat line at 0 dB.6 Disconnect the cable from the output port of the analyzer. Connect the type-Nbarrel to the free end of the cable.7 Connect the probe adapter to the output port of the analyzer. Connect theprobe between the probe adapter and the type-N barrel. Plug the probe powercable into the front panel of the analyzer.Specifications (at 25 °C ±5 °C)Median gain over 300 kHz to 1 GHz 0 dB ±1.25 dBFrequency response flatness (relative to med ian gain)300 kHz to 1 GHz ±1.25 dB1 GHz to 3 GHz ±2.5 dB