Rohde & Schwarz now offers a new R&S FSW signal and spectrum analyzer that covers the frequency range from 2 Hz to 43.5 GHz. Its high RF dynamic range, measurement speed and numerous functions make the R&S FSW43 an excellent microwave analyzer. The displayed average noise level of –164 dBm with preamplifier switched on is very low in the microwave range. With a phase noise of –117 dBc (Hz) at 40 GHz and 10 kHz carrier offset, the analyzer allows high-sensitivity measurements even close to the carrier, e.g. on radar signals.