The Anritsu MG3671A is a high-performance digital modulation signal generator designed for the development, testing, and evaluation of digital mobile communications equipment. Operating across a wide frequency range from 300 kHz to 2.75 GHz, the MG3671A features a built-in high-performance quadrature modulator and provides exceptionally stable output power alongside excellent spectral purity. It supports flexible multi-system testing through up to eight simultaneous modulation units and a burst function unit expansion capability.
Specifications
Frequency
| Parameter | Value |
|---|---|
| Minimum Frequency | 300 kHz |
| Maximum Frequency | 2.75 GHz |
| Frequency Resolution | 0.01 Hz |
Output
| Parameter | Value |
|---|---|
| Maximum Output Power | +13 dBm |
| Output Power Range | -143 to +13 dBm |
| Phase Noise | <-130 dBc/Hz (at 1 GHz carrier, 20 kHz offset) |
Modulation
| Parameter | Value |
|---|---|
| Modulation | Digital I/Q (External CMOS-level input, optional internal modulation units) |
| Sweep Modes | Frequency, Amplitude |
| Vector Modulation Distortion (EVM) | <= 2% rms (pi/4 DQPSK) |
| Vector Modulation Phase Error | <= 2 deg rms (GMSK) |
General
| Parameter | Value |
|---|---|
| Reference Oscillator | 10 MHz (Internal Reference Stability: < 2 x 10^-8/day, option dependent) |
| Interfaces | GPIB (IEEE-488.2) |
| Display | LCD with Backlight |
Physical
| Parameter | Value |
|---|---|
| Power Supply | 85 to 265 VAC, 47.5 to 63 Hz |
| Dimensions (W×H×D) | 426 mm × 177 mm × 451 mm |
| Weight | 22 kg |
Frequency Specifications
| Parameter | Value |
|---|---|
| Frequency Range | 300 kHz to 2.75 GHz |
| Internal Reference Frequency | 10 MHz |
Amplitude Specifications
| Parameter | Value |
|---|---|
| Minimum Output Power | -143 dBm |
| Amplitude Resolution | 0.1 dB |
| Output Impedance | 50 ohms |
Spectral Purity
| Parameter | Value |
|---|---|
| SSB Phase Noise | <-130 dBc/Hz (at 1 GHz, 20 kHz offset) |
| Harmonic Spurious | < -30 dBc (output level <= +7 dBm) |
| Non-Harmonic Spurious | < -50 dBc (300 kHz to 1.0 GHz), < -45 dBc (1.0 to 2.0 GHz), < -40 dBc (2.0 to 2.75 GHz) at >= 10 kHz offset |
Vector Modulation and Baseband
| Parameter | Value |
|---|---|
| Modulation Input | External I/Q (Analog, BNC connectors) |
| Expansion Capabilities | Up to 8 modulation units and 1 burst function unit simultaneously |
System Connectivity and Interfaces
| Parameter | Value |
|---|---|
| RF Output Connector | N-type (female) |
Power Requirements
| Parameter | Value |
|---|---|
| Line Voltage | 85 V to 265 V AC |
| Line Frequency | 47.5 Hz to 63 Hz |
RF Output
| Parameter | Value |
|---|---|
| Output VSWR | < 1.5 (300 kHz to 2.0 GHz, output level <= 0 dBm), < 2.0 (2.0 to 2.75 GHz, output level <= 0 dBm) |
| Output Level Accuracy (>= -110 dBm) | +/-1.0 dB (300 kHz to 2.0 GHz), +/-1.5 dB (2.0 to 2.75 GHz) |
Power Supply
| Parameter | Value |
|---|---|
| Power Consumption | <= 350 VA |
Environmental
| Parameter | Value |
|---|---|
| Operating Temperature Range | 0 to +50 deg C |
| Storage Temperature Range | -20 to +60 deg C |
External I/Q Modulation
| Parameter | Value |
|---|---|
| External I/Q Input Impedance | 50 Ω |
| External I/Q Input Level | 0.5 V peak (for full scale) |
Pulse Modulation (Option 02)
| Parameter | Value |
|---|---|
| Pulse Modulation ON/OFF Ratio | > 80 dB (with Option 02) |
Reference Oscillator
| Parameter | Value |
|---|---|
| Reference Aging Rate (Standard) | < 1 × 10⁻⁶/year |
| Reference Aging Rate (Option 01) | < 5 × 10⁻¹⁰/day |
| Reference Temperature Stability (Standard) | < 2 × 10⁻⁶ (0 °C to 50 °C) |
| Reference Temperature Stability (Option 01) | < 5 × 10⁻⁹ (0 °C to 50 °C) |
Burst Modulation
| Parameter | Value |
|---|---|
| Burst ON/OFF Ratio | > 80 dB |
Memory
| Parameter | Value |
|---|---|
| Save/Recall Registers | 100 settings |
Technology
Digital RF Modulation
Applications
Digital Mobile Communications Testing