For applications requiring very high accuracy to measure and align transmitter levels, the R&S FPH-K9 option allows the R&S SpectrumRider FPH to be used for power measurements together with the R&S NRP power sensor series, with a measurement range of -70 dBm to +45 dBm and covering frequencies up to 110 GHz.

When used with an R&S HA-Z360/Z361 optical power sensor, the R&S SpectrumRider FPH power meter mode reads out optical absolute power in dBm as well as relative power in dB.

Using a Power Sensor

The power sensor function turns the R&S Spectrum Rider into a wideband power meter. It then always measures the power of the whole signal in the frequency range of the power sensor. In most cases, the signal shape has no effect on the measurement.

The power sensor measures the power in the frequency range defined in the data sheet of the power sensor. This means that you can measure both sine signals and modulated signals precisely over a large dynamic range.

*The image is for reference only. See product specification for details