Keysight MXR2FRE - Frequency Extension for Infiniium MXR-Series
All MXR-B models come standard with 40 MHz of analysis bandwidth for Digital Down Conversion (DDC) and Real Time Spectrum Analyzer (RTSA) on one center frequency (CF), with options for 160 or 320 MHz of analysis on 4 or 8 different center frequencies.
With the new Frequency Extension option, the frequency range for DDC and RTSA is not limited to the bandwidth of your oscilloscope. For example, if your measurement needs (in the time domain) only call for 2 GHz of analog bandwidth, but you wish to analyze wireless data up to 6 GHz, you can purchase a 2 GHz Infiniium MXR-Series scope and get 6 GHz analysis with DDC and RTSA if you purchase MXR2FRE.