Siglent SNA5004A, 4‑Port Vector Network Analyzer, 9 kHz–4.5 GHz

The Siglent SNA5004A is a high-performance, 4-port vector network analyzer in the SNA5000A series, covering 9 kHz to 4.5 GHz with ultra‑fine 1 Hz frequency resolution. It features a dynamic range of 125 dB, low trace noise (≈0.003 dB rms magnitude, 0.03° phase), and supports five sweep types along with versatile calibration methods such as SOLT, TRL, and enhanced response. Designed for demanding R&D and production environments, it enables precise scattering, differential, and time-domain parameter measurements to assess Q‑factor, insertion loss, bandwidth, and more.

Key Features

• Frequency range: 9 kHz to 4.5 GHz with 1 Hz tuning resolution
• Dynamic range: 125 dB with trace noise as low as 0.003 dB rms magnitude / 0.03° phase
• Supports 2/4‑port S‑parameter, differential parameter, and time-domain measurements
• Five sweep modes: linear frequency, log frequency, power sweep, CW‑time, and segment sweep
• Calibration types: SOLT, SOLR, TRL, response, and enhanced response
• Output level range: –55 dBm to +10 dBm, level resolution of 0.05 dB