External frontends
The R&S®FExx external frontends is a convenient way to extend the usable frequency of Rohde & Schwarz signal and spectrum analyzers and signal generators. These frontends are available in several different models, all the way up to 170 GHz. By using a frontend, it is possible to be closer to the device under test reducing cable losses, which increases the sensitivity of the receiver and the output power of the generator. This is particularly important in an over the air environment.
The Frontends comes as completely calibrated units, with built in high performance local oscillators for best signals quality. They are fully integrated into the base instruments firmware, and enables the easiest control possible.