The Advantest R3271 is a high-performance microwave spectrum analyzer designed for a wide range of RF and microwave measurements up to 26.5 GHz. It offers exceptional spectral purity, a broad resolution bandwidth range from 10 Hz to 3 MHz, and continuous sweeping capabilities. Equipped with a built-in frequency counter and an internal speaker for voice demodulation, the R3271 is well-suited for demanding field and laboratory analysis, including EMI adaptation measurements.
Specifications
General
| Parameter | Value |
|---|---|
| Interfaces | GPIB (IEEE-488) |
| Display | Large CRT display |
Physical
| Parameter | Value |
|---|---|
| Power Supply | 90 to 132 VAC / 198 to 250 VAC, 48 to 440 Hz, 250 VA max |
| Operating Temperature | 0 to 50 °C |
| Dimensions (W×H×D) | 350 mm × 177 mm × 450 mm |
| Weight | 22 kg |
Frequency Specifications
| Parameter | Value |
|---|---|
| Frequency Range | 100 Hz to 26.5 GHz |
| Frequency Counter Resolution | 1 Hz |
| Phase Noise | -110 dBc/Hz (at 10 kHz offset from carrier) |
Sweep & Bandwidth
| Parameter | Value |
|---|---|
| Resolution Bandwidth (RBW) Range | 10 Hz to 3 MHz |
| Sweep Capability | Continuous and repeated sweep across the complete bandwidth |
Measurement Capabilities & Features
| Parameter | Value |
|---|---|
| Voice Demodulation | Supported (using an internal speaker) |
Connectivity & Interface Ports
| Parameter | Value |
|---|---|
| RF Input Impedance | 50 ohms |
RF Input
| Parameter | Value |
|---|---|
| Input Attenuator Range | 0 to 70 dB in 10 dB steps |
| Maximum Safe RF Input Level | +30 dBm (1 W), 0 VDC |
| RF Input Connector | 3.5 mm female (compatible with SMA) |
| Input VSWR (100 Hz to 3.1 GHz) | ≤ 1.5:1 (with ≥ 10 dB attenuation, for 100 kHz to 3.1 GHz) |
| Input VSWR (3.1 GHz to 26.5 GHz) | ≤ 2.0:1 (with ≥ 10 dB attenuation) |
Sweep
| Parameter | Value |
|---|---|
| Sweep Time Range | 50 µs to 1000 s (20 µs to 1000 s in zero span) |
Bandwidth
| Parameter | Value |
|---|---|
| Video Bandwidth (VBW) Range | 1 Hz to 3 MHz |
Frequency Stability
| Parameter | Value |
|---|---|
| Frequency Reference Aging | ±2 × 10^-8/day, ±1 × 10^-7/year |
Performance
| Parameter | Value |
|---|---|
| Displayed Average Noise Level (10 kHz to 3.1 GHz) | -115 dBm @ 1 kHz RBW |
| Displayed Average Noise Level (3.1 GHz to 8.0 GHz) | -110 dBm @ 1 kHz RBW |
| Displayed Average Noise Level (7.8 GHz to 15.4 GHz) | -103 dBm @ 1 kHz RBW |
| Displayed Average Noise Level (15.2 GHz to 23.0 GHz) | -96 dBm @ 1 kHz RBW |
| Displayed Average Noise Level (22.0 GHz to 26.5 GHz) | -90 dBm @ 1 kHz RBW |
| 1 dB Gain Compression Point | -3 dBm (at mixer input, >10 MHz) |
Accuracy
| Parameter | Value |
|---|---|
| Frequency Response (100 Hz to 3.1 GHz) | ±1.5 dB |
| Frequency Response (3.1 GHz to 8.0 GHz) | ±1.5 dB |
| Frequency Response (7.8 GHz to 15.4 GHz) | ±2.5 dB |
| Frequency Response (15.2 GHz to 23.0 GHz) | ±3.5 dB |
| Frequency Response (22.0 GHz to 26.5 GHz) | ±4.0 dB |
Auxiliary Connections
| Parameter | Value |
|---|---|
| External Mixer Range | 18 GHz to 325 GHz (using external mixers) |
Detection & Sweep
| Parameter | Value |
|---|---|
| Detection Modes | Normal, POS Peak, NEG Peak, Sample |
Technology
Superheterodyne Spectrum Analysis
Applications
Microwave and RF Signal Analysis, EMI Testing
Looking for the Advantest R3271?
Tell us what you need. We're building a network of equipment dealers and will get back to you if we can help source it — no obligation.
Selling this kind of equipment? Sell with us