The signal and spectrum analyzer is based on the R&S®FSW with its unique RF performance and high sen‑ sitivity. The analyzer's low phase noise enables users to precisely analyze modulation, measure the power of ad‑ jacent channels with high dynamic range and measure spurious emissions, even very close to the carrier. The internal preamplifier lowers the displayed average noise level (DANL) to below –165 dBm (1 Hz). Additional noise cancellation brings the DANL close to the theoretical limit of –174 dBm (1 Hz). Spurious emission measurement in particular is extremely fast, since the R&S®FSWP measures with a higher resolution bandwidth than less sensitive spectrum analyzers
A high third-order intercept (TOI) of typically 25 dBm pro‑ vides a wide dynamic range, allowing users to measure small input signals in the presence of large input signals and to determine adjacent channel rejection for wideband modulated signals.
When used as a signal analyzer (R&S®FSWP-B1 option), the R&S®FSWP uses an analysis bandwidth of up to 80 MHz (R&S®FSWP-B80 option) and offers internal, I/Q data based options for signal analysis. This makes it possible, for example, to analyze pulses automatically (R&S®FSWP-K6 pulse measurements option). The R&S®FSWP records the data across a wide band and calculates all important pulse parameters such as pulse width, rise times and pulse repetition rate at the push of a button.
Digitally modulated signals can be evaluated using the internal vector signal analysis function (R&S®FSWP-K70 option). The R&S®FSWP-K7 option is available for ana‑ log-modulated signals. Users can also upload the I/Q data to a computer and perform their own analyses.