Advantest R3681 20Hz to 32GHz Spectrum Analyzer
Advantest Spectrum Analyzers. Frequency Range: 20 Hz to 32 GHz, Power Range (dBm): -145 dBm to +10 dBm, Voltage / Current Range: 100-240 VAC, 50/60 Hz.
- Model
- Advantest R3681
- Calibration
- Available on request
- Price
- $22,979
- RFQ ref
- R3681
This unit
The Advantest R3681 is a spectrum analyzer that characterizes RF and microwave signals from 20 Hz to 32 GHz with superior frequency accuracy and exceptional sensitivity. Built for signal monitoring, component testing, and electromagnetic compatibility measurements, it delivers 1 Hz frequency resolution, -145 dBm displayed average noise level (with preamplifier ON), and 75 dB typical dynamic range. The instrument provides comprehensive measurement functions including channel power, adjacent channel power, occupied bandwidth, spurious emission, and harmonic distortion analysis across demanding research, manufacturing, and quality assurance workflows.
Technical Specifications
- Frequency Range: 20 Hz to 32 GHz
- Frequency Resolution: 1 Hz minimum
- Resolution Bandwidth: 1 Hz to 10 MHz (1-3-10 sequence)
- Video Bandwidth: 1 Hz to 3 MHz (1-3-10 sequence)
- Sweep Time: 10 ms to 2000 s
- Displayed Average Noise Level: -145 dBm/Hz (typical, preamplifier ON)
- Phase Noise: -90 dBc/Hz at 10 kHz offset (1 GHz carrier)
- Third Order Intercept: +10 dBm (typical)
- Dynamic Range: 75 dB (typical, 1 MHz span, 30 Hz RBW, 10 Hz VBW)
- Amplitude Accuracy: ±0.5 dB (typical)
- Spurious Response: -60 dBc (typical, 1 GHz, full span)
- Harmonic Distortion: -70 dBc (typical, 1 GHz, -20 dBm carrier)
- Non-harmonic Distortion: -60 dBc (typical, 1 GHz, -20 dBm carrier)
Key Features
- Built-in measurement functions: channel power, adjacent channel power, occupied bandwidth, three-modulus phase comparator, spurious emission, harmonic distortion
- Multiple trigger modes: positive/negative edge, video, external, frequency, power, list
- Amplitude units: dBm, dBmV, dBµV, V, mV, µV
- RF Input: Type-N (female), 50 ohm
- External trigger and reference clock (10 MHz) via BNC connectors
- High-resolution color LCD display
- Power: 100-240 VAC, 50/60 Hz, 400 VA typical
- Dimensions: 420 × 177 × 450 mm; Weight: 18 kg
Compatibility & Integration
- GPIB interface (standard)
- Gigabit Ethernet (LAN)
- USB for external storage and control
Specifications
| Parameter | Value |
|---|---|
| Frequency Range | 20 Hz to 32 GHz | Power Range (dBm): '-145 dBm to +10 dBm | Voltage / Current Range: 100-240 VAC, 50/60 Hz |
Advantest R3681 — Repair & Calibration Service
Aumictech offers NIST-traceable calibration and repair for the Advantest R3681. All calibrations are performed to NIST-traceable standards and ship with a certificate. Turnaround is typically 1–3 business days after receipt.
Advantest R3681 price
This Advantest R3681 is listed at $22,979. Calibration is available separately from $450. Contact us for volume pricing or if you need multiple units.
Advantest R3681 calibration cost
NIST-traceable calibration for the Advantest R3681 is $450 (standard — pass/fail certificate and calibration sticker) or $650 (full measured data at every test point, reference standards documented, traceability chain included). Turnaround is 1 to 3 business days after receipt. See full calibration details →
