R&S FPC entry-level spectrum analyzer combines three RF instruments
Munich, Germany. Rohde & Schwarz announced today that it has extended its R&S FPC spectrum-analyzer family, adding the R&S FPC1500. This compact instrument combines a spectrum analyzer, a one-port vector network analyzer, and a CW signal generator. It is suitable for education, for applications in service and repair shops, and for professional hobbyists. It is the first spectrum analyzer on the market to integrate the three most commonly used instruments on an RF engineer’s workbench in one budget-friendly instrument, the company said.
The R&S FPC1500 is the world’s first spectrum analyzer to include a one-port vector network analyzer with internal VSWR bridge, an independent CW signal generator, and a tracking generator.
Spectrum analyzer
The base model of the R&S FPC1500 has a frequency range of 5 kHz to 1 GHz. Keycode options unlock higher frequency ranges up to 3 GHz or enable other measurement application features when required. Upgrades are activated immediately when the keycodes are entered, and there is no need for upgrade calibration.
For applications requiring a high sensitivity to characterize extremely weak signals, the R&S FPC1500 offers a low noise floor level of -150 dBm (typ.), which can be further extended to -165 dBm (typ.) through an optional, keycode-activated preamplifier. Its high maximum input power allows users to measure RF signals up to +30 dBm (1 W). This combination of high sensitivity and high input power level gives the R&S FPC1500 a wide measurement dynamic range.
In addition, the R&S FPC1500 offers 1-Hz RBW and 10.1” (1366×768-pixel) display.
Network analyzer
Thanks to the internal VSWR bridge, the R&S FPC1500 can perform reflection measurements. This allows users to measure impedance on antennas or RF circuits with the Smith chart display or use distance-to-fault measurements to detect faulty locations on a long RF cable. There is no need to mount and dismount an external VSWR bridge when switching between the spectrum analyzer and network analyzer modes.
Signal generator
The tracking generator integrated into the R&S FPC1500 enables scalar transmission measurements on passive and active RF components that do not produce their own RF signal—for example, amplifiers, filters, and even RF cables.
Another first is the ability of the R&S FPC1500 to act as an independent continuous-wave (CW) signal generator. Sample applications include using the CW signal source as a LO signal for mixer measurements or as an input signal for amplifier gain measurements. Further, the R&S FPC1500 offers a coupled CW mode that couples the generated CW signal to the displayed center frequency of the R&S FPC1500. Whenever a measurement requires a CW signal to follow the R&S FPC1500 center frequency, these operations now can be conveniently set in a single step.