Description: The Advantest R4131D is a reconditioned Spectrum Analyzer with a 10 kHz to 3.5 GHz range?
Product Specs:Frequency Range:? 10kHz - 3.5GHz. Dynamic Range:? -116dBm - +20dBm. Input Impeadance:? 50 ohms. Resolution Bandwidth:? 1kHz - 1MHz. Video Bandwidth:? 10Hz - 1MHz. Residual FM:? -80dBc. GPIB interface.
