The Keysight (formerly Agilent HP) 5351B is a high-performance 26.5 GHz CW microwave frequency counter designed for fast and precise frequency measurements. It features integrated GaAs hybrid circuit technology for exceptional speed, sensitivity, and reliability. Highly versatile, it operates from 10 Hz to 26.5 GHz and is fully programmable via HP-IB for automated test applications.
Specifications
Physical
| Parameter | Value |
|---|---|
| Operating Temperature | 0 to 50 °C |
Low-Frequency Input Characteristics (Channel 1)
| Parameter | Value |
|---|---|
| Frequency Range (Channel 1) | 10 Hz to 525 MHz |
| Sensitivity (Channel 1) | 25 mV rms (10 Hz to 525 MHz) |
| Connector Type (Channel 1) | BNC female |
Microwave Input Characteristics (Channel 2)
| Parameter | Value |
|---|---|
| Frequency Range (Channel 2) | 500 MHz to 26.5 GHz |
| Sensitivity (500 MHz to 12.4 GHz) | -40 dBm |
| Sensitivity (12.4 GHz to 20.0 GHz) | -30 dBm |
| Sensitivity (20.0 GHz to 26.5 GHz) | -20 dBm |
| Input Impedance (Channel 2) | 50 Ω nominal |
| Connector Type (Channel 2) | APC 3.5 female |
Timebase and Reference
| Parameter | Value |
|---|---|
| Standard Reference Frequency | 10 MHz |
| External Reference Output Frequency | 10 MHz |
Measurement and Resolution
| Parameter | Value |
|---|---|
| Frequency Resolution | Selectable 1 Hz to 1 MHz |
| Least Significant Digit (LSD) | 1 Hz to 1 MHz (selectable) |
Functions and Features
| Parameter | Value |
|---|---|
| Automatic Amplitude Discrimination | Measures frequency of the highest-amplitude signal in multi-signal environments |
| Math Functions | Measurement scaling and frequency offset |
| Self-Test and Diagnostics | Built-in microprogrammed diagnostics and troubleshooting routines |
| Smooth Filter | Computes a running average to stabilize noisy measurements |
Options and Accessories
| Parameter | Value |
|---|---|
| Option 002 (Rear Panel Connector Configuration) | Moves Channel 1 and Channel 2 input connectors to the rear panel |
Options
| Parameter | Value |
|---|---|
| Option 011 | MATE CIIL Interface |
Technology
GaAs hybrid circuit
Applications
Microwave frequency measurement, source drift tracking, system calibration, VCO testing