Advantest R3172 9kHz to 26.5GHz Spectrum Analyzer

The Advantest R3172 is a spectrum analyzer covering 9 kHz to 26.5 GHz, engineered for RF module development and manufacturing. Direct input measurements span the full frequency range with exceptional sensitivity and low noise characteristics. The instrument combines newly designed RF circuitry with configurable resolution and video bandwidths to deliver accurate signal analysis across diverse test scenarios.

Technical Specifications

• Frequency Range: 9 kHz to 26.5 GHz


• Dynamic Range: +30 dBm to −132 dBm


• Input Sensitivity: −145 dBm


• Average Display Noise Level: −106 dBm (26.5 GHz, RBW 1 kHz)


• SSB Phase Noise: −91 dBc/Hz (26.5 GHz, 20 kHz offset)


• Input Impedance: 50 ohms


• Resolution Bandwidth: 1 kHz to 3 MHz


• Video Bandwidth: 10 Hz to 3 MHz


• Frequency Span: 0 Hz, 1 kHz to 26.5 GHz


• 6 dB Bandwidth Filters: 9 kHz, 120 kHz, 1 MHz


• Detector: QP detector


• Operating Temperature: 0 to +50°C (85% RH maximum)


• Maximum Altitude: 2000 m above sea level

Key Features

• Frequency counter with 1 Hz resolution standard


• Preamplifier standard to 3 GHz


• Power measurement functions: AVG POWER and TOTAL POWER


• Optional 200 Hz narrow band-pass filter for enhanced selectivity


• Optional tracking generator (100 kHz to 3 GHz)


• Optional external mixers for extended coverage to 75 GHz


• Optional wide-range FM demodulation (Option 73) for FM deviation to 2.5 MHz


• Optional time-domain high-speed sweep (Option 29) with sweep time to 50 µs


• Optional time-base accuracy (Option 20) to 2 × 10⁻⁸/day

Typical Applications

• High-frequency module and device characterization


• Manufacturing test and verification


• Signal integrity analysis in RF design


• Phase noise and spectral purity measurement

Compatibility & Integration The R3172 accepts 50 ohm input impedance connections and operates under EMC Directive 89/336/EEC (EN61326) and Low Voltage Directive 73/23/EEC (EN61010). Rear panel exhaust cooling and bottom-facing exhaust ports require unobstructed airflow. Installation Category II; Contamination Level 2.