The R&S?SpectrumRider FPH is the first handheld analyzer with software-upgradeable frequency ranges. The base unit handles frequencies between 5 kHz and 2 GHz. The end frequency of 2 GHz is required for most common lab applications such as EMI pre-compliance or troubleshooting during RF development. Users who need an instrument that supports frequencies above 2 GHz can easily upgrade their instrument to 3 GHz or 4 GHz via software keycode. 125-9493 - Frequency upgrade 2GHz to 3GHz
125-9494 - Frequency upgrade 3GHz to 4GHz