There are 4 models and frequency ranges:
R+S FSIQ3: 20 Hz to 3.5 GHz.
R+S FSIQ7: 20 Hz to 7 GHz.
R+S FSIQ26: 20 Hz to 26.5 GHz.
R+S FSIQ40: 20 Hz to 40 GHz.
In addition to a high performance spectrum analyzer, there is an integrated broadband vector signal analyzer for all main mobile radio standards and modulation modes with versatile result display: I and Q signal, magnitude and phase, vector and constellation diagrams, spread sheets with numeric evaluation of modulation errors and demodulated bit sequence.