The Keysight (formerly Agilent HP) 8757A is a high-performance microprocessor-based scalar network analyzer designed for precise microwave and RF reflection and transmission measurements. Featuring a large CRT display, four independent display channels, and compatibility with a wide range of external detectors and directional bridges, it enables comprehensive characterization of active and passive components. Highly versatile, it can be fully programmed over HP-IB and supports a dedicated system interface for direct control of sweep sources and plotters.
Specifications
Display & Trace Characteristics
| Parameter | Value |
|---|---|
| Trace Averaging | 2, 4, 8, 16, 32, 64, 128, 256 successive traces |
| Trace Smoothing Range | 0.1% to 20% of trace width |
Measurement Performance
| Parameter | Value |
|---|---|
| AC Mode Modulation Frequency | 27.778 kHz |
| Reference Level Range | -90 to +90 dBm (or dB) |
| Reference Level Resolution | 0.01 dB |
Display
| Parameter | Value |
|---|---|
| Number of Displayed Traces | 4 |
System Capabilities
| Parameter | Value |
|---|---|
| Save/Recall Registers | 9 instrument states |
Compatibility
| Parameter | Value |
|---|---|
| Compatible Detectors | HP 11664 series, HP 85025 series, HP 85026 series |
Interfaces
| Parameter | Value |
|---|---|
| System Interface Port | Dedicated HP-IB interface for direct sweep oscillator and plotter control |
Technology
Scalar Network Analysis
Applications
RF and microwave magnitude-only transmission and reflection measurements