10 Hz to 500 MHz, 1 mHz resolution Full-vector network and spectrum measurement and analysis Wide dynamic range network measurement with fast sweep speeds ±0.05 dB, ±0.3° dynamic magnitude/phase accuracy Extremely fast narrowband spectrum measurement Impedance analysis option and test kit available 45 dBm/Hz sensitivity for spectrum analysis Built-in IBASIC for easy test automation Time-gated spectrum analysis option Color TFT display and built-in disk drive/RAM diskThe 4395A provides excellent vector network, spectrum, and optional impedance measurements for lab and production applications. Gain, phase, group delay, distortion, spurious, CN, and noise measurements often required for evaluating components and circuits can be measured using one instrument. When combined with a test set, the 4395A provides reflection measurements, such as return loss, SWR, and S parameters. As a vector network analyzer, the Keysight 4395A operates from 10 Hz to 500 MHz with 1 mHz resolution; and its integrated synthesized source provides -50 to +15 dBm of output power with 0.1 dB resolution. The dynamic magnitude and phase accuracy are ±0.05dB and ±0.3°. so that it can accurately measure gain and group delay flatness, which are becoming more important in modern electronics systems. As a spectrum analyzer, the 4395A operates from 10 Hz to 500 MHz with resolution bandwidths (RBWs) spanning 1 Hz to 1 MHz in a 1-3-10 steps. A fully-synthesized local oscillator allows stable and accurate frequency analysis. Direct A/D conversion (no LOG amplifier is used) results in ±0.8 dB level accuracy (@50 MHz, -20 dBm). Noise sidebands fall below -100 dBc/Hz @ 100 kHz offset from carriers, while sensitivity is -145 dBm/Hz at 10 MHz.