Advantest R3361A - Spectrum Analyzer

The Advantest R3361A is a spectrum analyzer engineered for signal analysis, component characterization, and EMC measurements across 9 kHz to 2.6 GHz. Built around a synthesized local oscillator, it delivers ±0.2 ppm frequency reference accuracy and 1 dB typical total level accuracy. The instrument achieves 120 dB display dynamic range and -130 dBm to +25 dBm amplitude measurement capability, supported by a high-sensitivity receiver and -105 dBc/Hz phase noise at 711 kHz offset.

Technical Specifications

Frequency Range: 9 kHz to 2.6 GHz Accuracy & Stability

• Frequency reference accuracy: ±0.2 ppm


• Total level accuracy: 1 dB (typical)


• Input attenuator switching accuracy: ±0.1 dB at 2.0 GHz; ±1.5 dB at 3.6 GHz


• Frequency drift: < 300 Hz/min for span < 2 MHz Dynamic Range & Sensitivity


• Display dynamic range: 120 dB


• Measurement dynamic range (with tracking generator): 110 dB


• Amplitude measuring range: -130 dBm to +25 dBm


• QP dynamic range: 70 dB


• Phase noise: -105 dBc/Hz at 711 kHz offset (f < 3.0 GHz)


• Secondary and tertiary distortion: ≤ -70 dB at -30 dBm input


• Residual response: ≤ -100 dBm Resolution & Video Bandwidth


• Resolution bandwidth: 30 Hz to 1 MHz with < ±0.3 dB switching accuracy


• Video bandwidth: 1 Hz to 1 MHz, switchable in 1 or 10 steps Input/Output


• Input impedance: 50 ohms, N-type connector


• Maximum input: +25 dBm (attenuator ≥ 10 dB); 50 VDC maximum


• Output impedance: Approximately 50 ohms, N-type connector


• Input attenuator: 0 to 50 dB in 10 dB steps

Key Features

• Integrated tracking generator (9 kHz to 2.6 GHz) with output range 0 dBm to -50 dBm


• Tracking generator output level accuracy: ±0.5 dB at 30 MHz, -10 dBm; flatness ≤ ±0.7 dB


• Tracking generator leakage: ≤ -100 dBm (up to 3.0 GHz)


• Manual sweep function for spot measurements


• User-defined functions for customized operational menu configuration


• Measuring window function for focused analysis on specific data ranges


• Voice monitor output for AM and FM with 8 Ω earphone capability


• Probe power source: ±15 V via 4-pin connector

Typical Applications

• EMC/EMI measurements and compliance testing


• RF component and subsystem characterization


• Filter and network response analysis via tracking generator


• Distortion and spurious signal measurement


• Narrow-band signal detection and analysis

Compatibility & Integration The R3361A accepts standard 50 ohm RF sources and feeds via N-type connectors. Integration with external test systems leverages the tracking generator output for automated frequency response measurements across the full 9 kHz to 2.6 GHz band.