The Advantest R3361D Spectrum Analyzers use a synthesized technique to cover wide frequency bands: 9 kHz to 3.6 GHz. These compact analyzers also offer high-performance functions, such as the 1 Hz resolution frequency setting function and 1 Hz resolution frequency counter function. The Advantest R3361D Spectrum Analyzers are easy to operate because they incorporate unique features such as user-defined and measuring window functions. Weighing only 15 kg (33 lbs.) the analyzers are small and useful for measurement and analysis of all kinds, from manufacturing to research and development. The analyzers have an internal controller function (Option 15), parallel I/0, and GPIB interface for line connection and automatic measurement, so the user can create the optimum system configuration.