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技术概述
Extend High Frequency Probing Applications
The Keysight Technologies Inc. 85024A high frequency probe offers excellent performance. The probe employs a GaAs IC to obtain extremely low input capacitance of only 0.7 pF shunted by 1 MΩ of resistance. Because of this low input capacitance, high frequency probing is possible without adversely loading the circuit under test. Also, the 1 MΩ shunt resistance guarantees minimal circuit loading at lower frequencies. Since the probe has excellent sensitivity, it is well-suited for use with analyzers offering exceptional dynamic range. The 85024A is an excellent accessory for high frequency test equipment, especially Keysight RF network or signal/spectrum analyzers which supply probe power from the front panel.
Signal/Spectrum Analysis
Troubleshooting RF and IF signal paths to identify problem areas in a system is convenient and accurate with an 85024A and a signal/spectrum analyzer. Measurements of frequency, power, modulation, distortion, conversion loss, and spectral purity are possible within a circuit. High sensitivity and low distortion levels ensure the probe’s ability to detect small signals or search for spurious responses. In fact, the sensitivity of most 85024A applications is limited only by the noise floor of the spectrum analyzer itself. Add a tracking generator to easily perform swept in-circuit measurements.
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