Rohde & Schwarz Spectrum Analyzer Frequency Upgrade 3GHz to 4GHz (software license)
The Rohde & Schwarz FSV-B4 (part number 1321.0673.02) is a software license option that upgrades the frequency range of the R&S FSV Spectrum Analyzer from 3 GHz to 4 GHz. This upgrade enables users to extend the upper frequency limit of their instrument, allowing for measurements and analysis up to 4 GHz. The license is delivered electronically and is activated via a key code. This option is compatible with FSV models originally configured for a maximum frequency of 3 GHz, providing enhanced flexibility for applications in wireless communications, RF component testing, and general-purpose spectrum analysis. The upgrade does not require any hardware modifications.