The U3751 is a portable 8 GHz spectrum analyzer from ADVANTEST that has high throughput and high accuracy.
The U3751 spectrum analyzer offers a compact 8 GHz frequency range (9 kHz‑8 GHz) with high‑throughput measurement that is twice as fast as conventional models. It includes a built‑in pre‑amplifier, three power options (AC, DC, battery), and a 6.5‑inch color LCD for field use.
The manual describes the analyzer’s measurement functions—RMS detection, multi‑marker, harmonic and adjacent‑channel power analysis—as well as detailed specifications, connector options, and optional accessories such as a high‑stability frequency reference.
| Frequency range | 9 kHz to 8 GHz |
|---|---|
| Sweep time (spectrum mode) | 20 ms to 1000 s |
| Power consumption | 100 VA (AC) / 70 W (DC) |
| Mass | 5.6 kg or less |
| Dimensions (W×H×D) | 308 mm × 175 mm × 209 mm |
The analyzer covers 9 kHz to 8 GHz.
It can warm up within five minutes.
It supports AC (100 V/200 V), DC (+11 V to +17 V), and a detachable battery pack.
Up to ten markers can be placed on the trace.