The Advantest R3371A is a portable spectrum analyzer delivering signal analysis from 100 Hz to 26.5 GHz using super-heterodyne receiver architecture. CRT display plots received signal strength against frequency, enabling rapid characterization across laboratory and field environments. Built-in tracking generator (100 kHz to 3.6 GHz) provides scalar network analyzer capability and frequency response measurement, eliminating the need for external signal sources in many applications.
Technical Specifications
• Frequency Range: 100 Hz to 26.5 GHz
• Resolution Bandwidth: 10 Hz to 3 MHz
• Display Dynamic Range: 120 dB
• Measurement Dynamic Range (with tracking generator): 110 dB
• Average Noise Level: −145 dBm (1 MHz to 3.6 GHz, low-noise mode, 10 Hz RBW, 0 dB attenuation, 20× averaging)
• Signal Purity: −110 dBc/Hz at 10 kHz offset (frequencies below 2.6 GHz)
• Tracking Generator Frequency Range: 100 kHz to 3.6 GHz
• Power Sweep Range: 30 dB with 0.1 dB step resolution (semiconductor switch attenuator)
– Key Features
• Super-heterodyne receiver design for precision across extended frequency range
• CRT display with frequency (X-axis) and signal strength (Y-axis) representation
• Integrated tracking generator enabling frequency response and scalar network analyzer measurements
• Semiconductor switch attenuator supports component characterization through power sweep analysis
• External SWR bridge compatibility for advanced network measurements
• Low-noise performance supporting -145 dBm sensitivity floor
– Typical Applications
• Frequency response characterization of components and systems
• Cable and connector performance evaluation
• Transmitter frequency and signal strength verification
• Interference identification and quantification prior to system deployment
• Antenna isolation and co-channel/adjacent-channel interference analysis
• Occupied bandwidth and adjacent-channel leakage power measurement
• Intermodulation distortion assessment
• Microwave and satellite antenna alignment optimization
• Radar pulse RF signal analysis
• Satellite and mobile communication signal evaluation
– Compatibility & Integration
External SWR bridge connection enables scalar network analyzer operation. Power sweep functionality via integrated semiconductor attenuator supports amplifier and filter characterization without external test equipment.
