New Advantest R3261A Spectrum Analyzer

Advantest R3261A Spectrum Analyzer (9 kHz – 2.6 GHz)

The Advantest R3261A is a high-performance spectrum analyzer covering a frequency range of 9 kHz to 2.6 GHz, designed for precision RF signal analysis in wireless communications, RF component testing, broadcasting, and general-purpose spectrum monitoring. This analyzer provides high sensitivity, excellent frequency stability, and user-friendly operation, making it an ideal choice for both laboratory and field applications.

With its wide dynamic range, fast sweep speeds, and comprehensive measurement functions, the R3261A is well-suited for analyzing modulated signals, identifying spurious emissions, and evaluating RF performance in various applications. Its high-resolution display, marker functions, and advanced filtering options enhance signal visualization and analysis efficiency.

Key Features & Benefits

1. Wide Frequency Coverage (9 kHz – 2.6 GHz)

• Enables accurate RF signal analysis across a broad frequency spectrum.
• Suitable for wireless communications, RF device testing, and EMI/EMC measurements.

2. High Sensitivity & Dynamic Range

• Displayed Average Noise Level (DANL): < –110 dBm (typical)
• Spurious-Free Dynamic Range (SFDR): > 80 dB
• Resolution Bandwidth (RBW): 30 Hz to 1 MHz
• Video Bandwidth (VBW): 1 Hz to 1 MHz

3. Fast & Precise Signal Analysis

• Fast sweep speeds enhance measurement efficiency.
• High accuracy and frequency stability ensure precise RF evaluation.

4. Comprehensive Measurement Functions

• Occupied Bandwidth (OBW) & Adjacent Channel Power Ratio (ACPR) for transmission analysis.
• Harmonic & Spurious Analysis to detect unwanted signals.
• Carrier-to-Noise Ratio (C/N) & Signal Strength Measurements.

5. User-Friendly Interface & Display

• High-resolution CRT display for clear signal visualization.
• Marker & Trace Functions for enhanced signal tracking.

6. Versatile Connectivity & Data Management

• GPIB & RS-232 interfaces for remote operation and automation.
• Internal memory for measurement storage and recall.

Applications

• Wireless Communication Testing – Cellular, Wi-Fi, and RF module verification.
• EMI/EMC Compliance Testing – Ensuring electronic devices meet regulatory standards.
• Broadcast Signal Monitoring – TV and radio transmission analysis.
• RF Component & Circuit Testing – Filters, amplifiers, and antennas.
• General-Purpose Spectrum Analysis – Research, education, and production testing.

The Advantest R3261A Spectrum Analyzer is a reliable and accurate RF measurement instrument, offering high sensitivity, fast sweep speeds, and a broad set of measurement functions. It is an excellent tool for RF engineers and technicians involved in wireless communications, broadcast analysis, and EMI/EMC testing.

Specifications

General Specifications

• Model: Advantest R3261A
• Type: Spectrum Analyzer
• Frequency Range: 9 kHz to 2.6 GHz
• Tuning Resolution: 1 Hz

Frequency Characteristics

• Resolution Bandwidth (RBW): 30 Hz to 1 MHz (1-3-10 step selectable)
• Video Bandwidth (VBW): 1 Hz to 1 MHz
• Frequency Span: 0 Hz (zero span) to 2.6 GHz
• Frequency Accuracy: ±1 × 10⁻⁶ / year
• Phase Noise: < –85 dBc/Hz @ 10 kHz offset (typical)

Dynamic Range & Sensitivity

• Displayed Average Noise Level (DANL): < –110 dBm (typical)
• Third-Order Intercept (TOI): +10 dBm typical
• 1 dB Compression Point (P1dB): +5 dBm typical
• Spurious-Free Dynamic Range (SFDR): > 80 dB

Measurement & Analysis Features

• Occupied Bandwidth (OBW)
• Adjacent Channel Power Ratio (ACPR)
• Spurious & Harmonic Analysis
• Carrier-to-Noise Ratio (C/N)
• Peak & Average Power Measurements

Sweep & Triggering

• Sweep Time: 50 ms to 1000 s
• Sweep Mode: Continuous, Single
• Triggering: Free Run, External

Display & User Interface

• Display: High-resolution CRT screen
• Markers & Cursors: Multiple markers for detailed signal analysis
• User Interface: Graphical, menu-driven with soft keys

Connectivity & Data Management

• Interfaces:
  • GPIB (IEEE-488.2) – For remote control and automation
  • RS-232C – For external communication
• Data Storage: Internal memory for measurement storage

Physical & Environmental

• Form Factor: Benchtop
• Power Requirements: AC 100-240V, 50/60 Hz
• Operating Temperature: 0°C to 50°C
• Weight: Approximately 12 kg (26.4 lbs)
• Dimensions: 320 mm × 170 mm × 400 mm

Applications

• Wireless Communications Testing – RF module and network verification
• EMI/EMC Compliance Testing – Regulatory compliance testing
• Broadcast Signal Monitoring – TV and radio transmission quality assessment
• RF Component & Circuit Testing – Filters, amplifiers, and antennas
• General-Purpose Spectrum Analysis – Research, education, and production testing