The R&S FSL from Rohde & Schwarz is a spectrum analyzer that can be used for a number of applications. It is versatile in the lab, fast in production and easy to carry. It is available in four different models with a frequency range up to 3 or 6GHz, either with or without a tracking generator. Featuring an I/Q demodulation bandwidth of 20MHz, a displayed average noise level of -152dBm (1Hz) and a total measurement uncertainty of under 0.5dB, it is cost friendly. It weighs less than 7kg. Available with a frequency range of 9 to 3GHz or 9kHz to 6GHz, either with or without a tracking generator, it features a phase noise value of -103dBc (1Hz) at 10kHz from the carrier.