The Agilent 86143B is a portable optical spectrum analyzer for 50 GHz applications. The 86143B maintains most of the higher performance characteristics of the 86142B/86145B models while providing measurement solutions at value prices. This OSA has all the performance capabilities of its larger sibling, the 86140B, while having a smaller 12.8" x 16.8" footprint and weighing 31 lbs. The 86143B is ideal for both field and factory use, particularly in high level system installation or situations where space is limited. With the 86143B you can quickly, easily and accurately characterize 50 GHz and wider WDM systems, optical sources and broadband components with its enhanced marker functionality, integrated power measurement capability and fast sweep speed. Features: Built-in test applications 10 pm wavelength accuracy Fast dual-sweep method Covers S, C, and L wavelength bands