The R3465 is a modulation spectrum analyzer that goes beyond traditional spectrum analysis. The 8 GHz frequency response provides coverage for a full range of digital radio frequencies and a high-performance spectrum analyzer armed with capabilities sufficient to support detailed waveform analysis. The newly developed high-speed settling synthesizer significantly reduces blanking time for narrow-band sweep (span of 5 MHz or less), thus enabling truly high-speed measurement. A high-frequency sweep accuracy of 1% or less, frequency stability of 2 x 10-8 /day, and a built-in preselector starting from 1.7 GHz permit harmonic measurements with a dynamic range of 100 dBc. In addition to these powerful spectrum analyzer functions, the R3465 also offers built-in modulation analysis for a variety of digital mobile communication standards.