The Keysight (Agilent HP) 83711A is a synthesized CW generator operating in the 1.0 to 20.0 GHz frequency range. Highly regarded for its spectral purity, output power, and reliability, it serves as an industry-standard signal source for microwave testing, local oscillator substitution, and component characterization.
Specifications
General
| Parameter | Value |
|---|---|
| Interfaces | GPIB (HP-IB) |
| Display | Backlit Liquid Crystal Display (LCD) |
| Warm-Up Time | 30 minutes |
| Frequency Reference Option 1E5 Aging Rate | < 5 × 10^-10 per day (after 30 days warm-up) |
| Frequency Reference Option 1E5 Temperature Stability | < ±2 × 10^-8 (0 to 55 °C) |
Physical
| Parameter | Value |
|---|---|
| Power Supply | 90 to 132 Vac (48 to 440 Hz) or 198 to 264 Vac (48 to 66 Hz), < 200 VA |
| Operating Temperature | 0 to 55 °C |
| Dimensions (W×H×D) | 426 mm × 133 mm × 498 mm |
Frequency
| Parameter | Value |
|---|---|
| Frequency Range | 1.0 to 20.0 GHz |
| Frequency Resolution | 1 kHz (1 Hz with Option 1E8) |
| Frequency Switching Speed | < 50 ms (to within 100 Hz of final frequency) |
| Phase Offset Range | 0 to 360° |
| Phase Offset Resolution | 1° |
Frequency Reference
| Parameter | Value |
|---|---|
| Frequency Reference Temperature Stability | < ±1 × 10^-6 (0 to 55 °C) |
| Frequency Reference Calibration Interval | 1 year |
Output Power & Leveling
| Parameter | Value |
|---|---|
| Maximum Output Power (1 to 18 GHz) | +13 dBm |
| Maximum Output Power (18 to 20 GHz) | +10 dBm |
| Minimum Output Power (Standard) | -4 dBm |
| Minimum Output Power (with Option 1E1) | -110 dBm |
| Power Resolution | 0.01 dB |
| Level Flatness | ±0.7 dB |
| Output Impedance | 50 Ω |
| Output SWR (1 to 8 GHz) | < 1.5:1 |
| Output SWR (8 to 20 GHz) | < 2.0:1 |
| Attenuator Range (with Option 1E1) | 110 dB |
| Attenuator Step Size (with Option 1E1) | 10 dB |
| Maximum Reverse Power Protection | 0.5 W (27 dBm) RF, 0 Vdc |
Spectral Purity
| Parameter | Value |
|---|---|
| Harmonics | <-50 dBc (at output levels < +10 dBm) |
| Non-harmonic Spurious | <-60 dBc |
| SSB Phase Noise (10 kHz offset, 10 GHz carrier) | <-90 dBc/Hz |
| Residual FM (50 Hz to 15 kHz BW, 10 GHz carrier) | < 10 Hz |
| Phase Noise @ 10 GHz Carrier, 100 Hz Offset | -65 dBc/Hz (typical) |
| Phase Noise @ 10 GHz Carrier, 1 kHz Offset | -78 dBc/Hz (typical) |
| Phase Noise @ 10 GHz Carrier, 100 kHz Offset | -100 dBc/Hz (typical) |
| Phase Noise @ 10 GHz Carrier, 1 MHz Offset | -120 dBc/Hz (typical) |
| Residual AM | < 0.01% (50 Hz to 15 kHz bandwidth) |
Sweep Capabilities
| Parameter | Value |
|---|---|
| Sweep Mode | Step Sweep |
Front & Rear Panel Connectors
| Parameter | Value |
|---|---|
| External Reference Input Frequency | 10 MHz |
| Internal Reference Output Frequency | 10 MHz |
| Internal Reference Output Level | 0 dBm nominal |
System Control & Connectivity
| Parameter | Value |
|---|---|
| Remote Interface Port | GPIB (HP-IB) |
| Command Set Language | SCPI |
| GPIB Address Range | 0 to 30 |
Power & Physical Requirements
| Parameter | Value |
|---|---|
| AC Line Voltage Range | 90 to 132 Vac or 198 to 264 Vac |
| AC Line Frequency Range | 48 to 440 Hz (90-132 Vac) / 48 to 66 Hz (198-264 Vac) |
| Storage Temperature Range | -40 to +75 °C |
| Height | 133 mm (3 EIA rack units) |
| Width | 426 mm |
| Depth | 498 mm |
| Rackmount Flange Option Availability | Option 1CP available |
Compliance & Certifications
| Parameter | Value |
|---|---|
| Electromagnetic Compatibility (EMC) | CISPR 11 / EN 55011 Group 1 Class A |
| Safety Standards Compliance | CSA certified, IEC 348 compliant |
Rear Panel Ports & Connections
| Parameter | Value |
|---|---|
| Sweep Output Voltage | 0 to 10 V ramp |
| Z-Axis Blanking Output | TTL level, BNC connector |
| 1 V/GHz Output | 1 V/GHz or 0.5 V/GHz (selectable), BNC connector |
| Stop Sweep Input | TTL level, BNC connector |
Environmental
| Parameter | Value |
|---|---|
| Operating Altitude | Up to 4,570 m (15,000 ft) |
| Non-Operating Altitude | Up to 15,240 m (50,000 ft) |
Inputs & Outputs
| Parameter | Value |
|---|---|
| Rear Panel AUX I/O Connector | 25-pin D-sub (female) |
| External Reference Input Connector | BNC female |
| Internal Reference Output Connector | BNC female |
| Sweep Output Connector | BNC female |
| Stop Sweep Input Connector | BNC female |
| Z-Axis Blanking Output Connector | BNC female |
| 1 V/GHz Output Connector | BNC female |
| External ALC Input Connector | BNC female |
| GPIB Interface Connector | 24-pin IEEE-488 (GPIB) female |
Performance
| Parameter | Value |
|---|---|
| Modulation Capabilities | CW only (no modulation support) |
| ALC Leveling Modes | Internal ALC, External Diode Detector, External Power Meter, Unleveled |
| External ALC Loop Bandwidth | Nominally 100 kHz (diode mode), 0.5 Hz (power meter mode) |
Maintenance
| Parameter | Value |
|---|---|
| Self-Test Diagnostics | Power-on self-test and GPIB-initiated diagnostics (*TST?) |
| Recommended Calibration Cycle | 1 year |
Technology
Synthesized Signal Generator
Applications
Microwave Testing, Local Oscillator Substitution, Component Characterization