The Keysight (Agilent/HP) 83751A is a synthesized sweeper designed for high-performance component testing. It operates from 2.0 GHz to 20.0 GHz, offering fully phase-locked analog, stepped, and ramp sweep modes to provide superior frequency accuracy, stability, and speed.
Specifications
General
| Parameter | Value |
|---|---|
| Interfaces | GPIB (IEEE-488.2) |
| Display | Vacuum Fluorescent Display (VFD) |
| Command Set | SCPI |
| EMC Compliance | Complies with CISPR 11, Class A and EN 55011, Class A |
Physical
| Parameter | Value |
|---|---|
| Power Supply | 90 to 132 VAC or 198 to 264 VAC, 48 to 66 Hz, 250 VA max |
| Operating Temperature | 0 to 55 °C |
| Dimensions (W×H×D) | 425 mm × 133 mm × 498 mm |
| Weight | 16 kg |
Frequency Characteristics
| Parameter | Value |
|---|---|
| Frequency Range | 2.0 GHz to 20.0 GHz |
| Frequency Resolution (Standard) | 1 kHz |
| Frequency Resolution (with Option 1E8) | 1 Hz |
| Frequency Accuracy (CW Mode) | ± (frequency × (aging rate + temperature stability)) |
| Standard Time Base Aging Rate | ±2.0 × 10^-6 / year |
| Standard Time Base Temperature Stability | ±1.0 × 10^-6 over 0 °C to 55 °C |
| High Stability Time Base Aging Rate (Option 1D5) | ±5.0 × 10^-10 / day |
RF Output Characteristics
| Parameter | Value |
|---|---|
| Maximum Leveled Output Power | +10 dBm |
| Minimum Leveled Output Power (Standard) | -15 dBm |
| Minimum Leveled Output Power (with Option 1E1) | -85 dBm |
| Output Power Resolution | 0.01 dB |
| Power Level Flatness | ±0.6 dB |
| Output Impedance | 50 ohms nominal |
| Source SWR | < 2.0:1 |
Spectral Purity
| Parameter | Value |
|---|---|
| Harmonics (2.0 to 20.0 GHz) | <-30 dBc |
| Non-harmonic Spurious | <-50 dBc |
| SSB Phase Noise (10 kHz offset, 10 GHz carrier) | <-75 dBc/Hz |
Sweep Capabilities
| Parameter | Value |
|---|---|
| Sweep Modes | Continuous Analog (Ramp) Sweep, Stepped Sweep, CW |
| Analog Sweep Time Range | 10 ms to 100 s |
| Step Sweep Time Range | 1 ms to 100 s per step |
| Number of Frequency Markers | 5 |
| Sweep Output Voltage | 0 V to 10 V ramp |
Modulation Capabilities
| Parameter | Value |
|---|---|
| Pulse Modulation On/Off Ratio | > 80 dB |
| Pulse Modulation Rise/Fall Time | < 10 ns |
Input & Output Ports
| Parameter | Value |
|---|---|
| RF Output Connector (Standard) | 3.5 mm female |
| External ALC Input Connector | BNC female |
| 10 MHz Reference Input | BNC female, 0 to +10 dBm nominal |
| 10 MHz Reference Output | BNC female, +3 dBm nominal |
| Sweep Output Connector | BNC female |
| Stop Sweep Input/Output | BNC female |
| Z-Axis Blanking Output | BNC female |
Control & Programmability
| Parameter | Value |
|---|---|
| Programming Languages | SCPI, HP 8350B Emulation Mode |
Physical & Environmental
| Parameter | Value |
|---|---|
| Storage Temperature Range | -40 °C to +75 °C |
| Operating Humidity Range | 5% to 95% relative humidity (non-condensing) |
Available Options & Configurations
| Parameter | Value |
|---|---|
| Option 1D5 | High Stability Time Base |
| Option 1E1 | 70 dB Step Attenuator |
| Option 1E8 | 1 Hz Frequency Resolution |
| Option 1ED | Type-N Female RF Output Connector |
| Option 1EE | Rear Panel RF Output Configuration |
Modulation
| Parameter | Value |
|---|---|
| External AM Input Impedance | 600 Ω |
| External AM Sensitivity | 100% / V |
| External AM 3 dB Bandwidth (DC-coupled) | DC to 100 kHz |
| External AM 3 dB Bandwidth (AC-coupled) | 100 Hz to 100 kHz |
| External FM Input Impedance | 600 Ω |
| External FM 3 dB Bandwidth (DC-coupled) | DC to 10 MHz |
| External FM 3 dB Bandwidth (AC-coupled) | 10 kHz to 10 MHz |
| External FM Sensitivity | 100 kHz/V, 1 MHz/V, or 10 MHz/V (selectable) |
| External FM Maximum Deviation | ±10 MHz |
| Pulse Input Impedance | 50 Ω |
| Pulse Input Level | TTL compatible (>2.0 V high, <0.8 V low) |
| Pulse Modulation Minimum Pulse Width (Unleveled) | < 100 ns |
| Pulse Modulation Minimum Pulse Width (Leveled) | < 2 µs |
Inputs & Outputs
| Parameter | Value |
|---|---|
| External AM Input Connector | BNC female (front panel) |
| External FM Input Connector | BNC female (front panel) |
| Pulse Modulation Input Connector | BNC female (front panel) |
| External Trigger Input Connector | BNC female (rear panel) |
| External Trigger Output Connector | BNC female (rear panel) |
Power Supply
| Parameter | Value |
|---|---|
| AC Power Frequency | 48 to 440 Hz (90 to 132 Vac) / 48 to 66 Hz (198 to 264 Vac) |
| Power Consumption (Maximum) | 250 VA |
Power
| Parameter | Value |
|---|---|
| Slope Compensation Range | 0 to 2 dB/GHz |
| Slope Compensation Resolution | 0.01 dB/GHz |
| Power Sweep Range | -15 dBm to maximum leveled power (standard) / -85 dBm to maximum leveled power (with Option 1E1) |
| User Flatness Correction Points | Up to 1601 points |
Sweep
| Parameter | Value |
|---|---|
| Step Sweep Points Range | 2 to 1601 points |
Frequency
| Parameter | Value |
|---|---|
| High Stability Time Base Temperature Stability (Option 1D5) | < ±1 × 10^-8 (0 °C to 55 °C) |
Power Requirements
| Parameter | Value |
|---|---|
| Line Voltage | 90 to 132 Vac (48 to 440 Hz) / 198 to 264 Vac (48 to 66 Hz) |
Environmental
| Parameter | Value |
|---|---|
| Operating Altitude | Up to 4,570 m (15,000 ft) |
| Non-Operating Altitude | Up to 15,240 m (50,000 ft) |
| Acoustic Noise | < 5.5 Bels |
Interfaces
| Parameter | Value |
|---|---|
| GPIB Default Address | 19 |
Technology
Synthesized Sweep Signal Generator
Applications
RF and Microwave Component Testing, Scalar Network Analysis, Mixer Testing
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