The Keysight (Agilent/HP) 5350B is a high-performance CW Microwave Frequency Counter capable of measuring signals from 10 Hz to 20 GHz. Built with integrated gallium arsenide (GaAs) microwave components, it delivers robust reliability and features exceptional sensitivity down to -40 dBm. It offers excellent throughput with measurement speeds up to 120 measurements per second over HP-IB, alongside advanced capabilities like automatic amplitude discrimination and mathematical scaling/offset. Its fast acquisition times and 1 GHz/s tracking speed make it highly suitable for testing voltage-controlled oscillators and tracking source drift.
Specifications
General
| Parameter | Value |
|---|---|
| Interfaces | HP-IB (IEEE-488) |
| Display | Liquid Crystal Display (LCD) |
Physical
| Parameter | Value |
|---|---|
| Operating Temperature | 0 to 50 |
Input Characteristics
| Parameter | Value |
|---|---|
| Frequency Range | 10 Hz - 20 GHz |
| Sensitivity | To -40 dBm |
| Automatic Amplitude Discrimination | Yes (measures frequency of the highest-amplitude signal) |
| Acquisition Time (Automatic Mode) | 60 ms (fast acquisition tracking mode) |
| Acquisition Time (Manual Mode) | 20 ms |
| Kickback Noise (Sleep Mode) | -70 dBm |
Measurement and Display
| Parameter | Value |
|---|---|
| Tracking Speed | 1 GHz/s |
Connectivity and Interfaces
| Parameter | Value |
|---|---|
| Remote Control Interface | HP-IB (Fully Programmable) |
Inputs & Outputs
| Parameter | Value |
|---|---|
| Microwave Input Connector (Input 2) | Type-N (female) |
| Low Frequency Input Connector (Input 1) | BNC (female) |
| Microwave Input Impedance | 50 Ω nominal |
| Microwave Input Damage Level | +25 dBm (peak ±5 VDC) |
| Low Frequency Input (Input 1) Coupling | AC |
| Timebase Output Frequency | 10 MHz |
Measurement Characteristics
| Parameter | Value |
|---|---|
| Measurement Resolution | 1 Hz to 1 MHz (selectable) |
Timebase
| Parameter | Value |
|---|---|
| Internal Timebase Frequency | 10 MHz |
| Standard Timebase Aging Rate | < 1 x 10^-7 / month |
| High-Stability Timebase (Option 001) Aging Rate | < 5 x 10^-10 / day |
Performance
| Parameter | Value |
|---|---|
| Microwave Input (Input 2) FM Tolerance | 20 MHz p-p |
Technology
Microwave Frequency Counter
Applications
Microwave frequency measurement, VCO tuning and testing, automated test system integration