Advantest R3265A 100Hz to 8GHz Portable Spectrum Analyzer

The Advantest R3265A is a portable spectrum analyzer engineered for precise signal analysis across 100 Hz to 8 GHz. This instrument delivers high sensitivity, wide dynamic range, and excellent frequency accuracy for signal analysis, component testing, and EMC measurements. The CRT display and single-sweep capability enable rapid characterization of RF and microwave signals in field and laboratory environments.

Technical Specifications

• Frequency range: 100 Hz to 8 GHz


• Linear frequency span: 200 Hz to 8 GHz, including zero span


• Linear span accuracy: ±3% (spans > 2 MHz); ±5% (spans ≤ 2 MHz)


• Logarithmic span: 1 kHz to 1 GHz, selectable in 1, 2, or 3 decades


• Logarithmic span accuracy: ±(10% + stop frequency × 0.1%) Sensitivity and Dynamic Range


• Input sensitivity (low-noise mode): –145 dBm (1 MHz to 3.6 GHz)


• Dynamic range: 100 dB and higher for carriers at 250 MHz and above with low-frequency preselector


• Maximum dynamic range: 132 dB − 1.55 × f (GHz) from 200 MHz to 3.6 GHz


• Amplitude range: +30 dBm to average display noise level


• Display range: 10 × 10 division graticule with selectable log scales (10, 5, 2, 1, 0.5, 0.2, 0.1 dB/div) and linear scales Spectral Purity


• Spectral purity: –110 dBc/Hz at 2.6 GHz (10 kHz offset); –108 dBc/Hz for offset frequencies > 2.6 GHz Resolution Bandwidth


• RBW (3 dB): 10 Hz to 3 MHz, selectable in 1, 3, 10 sequence


• RBW accuracy: ±15% (100 Hz to 1 MHz); ±25% (30 Hz); ±50% (10 Hz to 100 Hz)


• Fixed bandwidth options: 200 Hz, 9 kHz, 120 kHz, 1 MHz (±10% accuracy)


• Video bandwidth: 1 Hz to 3 MHz, selectable in 1, 3, 10 sequence

Key Features

• High-speed sweep: 5 µs/div during zero span


• Burst signal analysis for TDMA and video signals


• Gated sweep function for pulsed RF carrier monitoring


• Occupied bandwidth measurement with carrier frequency display


• Adjacent-channel leakage power measurement (70 dB dynamic range)


• EMC measurement functions


• AM and FM demodulation


• BASIC controller function for data storage and automatic measurement systems


• GPIB interface

Typical Applications

• Signal analysis and characterization


• Component and subsystem testing


• EMC compliance verification


• Pulsed signal analysis


• Spectral purity assessment