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Using Hanmatek Oscilloscopes to Detect High-Frequency Signals: From Capture to Localization
In electronics testing and troubleshooting, accurately capturing and analyzing high-frequency signals is essential. Hanmatek offers a range of oscilloscopes—from portable field tools to lab-grade instruments—perfect for various applications. This guide explains how to use Hanmatek oscilloscopes for high-frequency signal detection and clarifies their role (and limitations) in sound source localization.
Hanmatek HO11: Portable High-Frequency Signal Capture
The HO11 is a compact handheld digital oscilloscope designed for fast, on-site measurements. Its key specifications include:
| Parameter | Specification |
|---|---|
| Bandwidth | 10 MHz |
| Sampling Rate | 500 MSa/s |
| Channels | Single-channel |
| Input Interface | BNC (standard probe compatible) |
| Key Functions | Waveform display, frequency, duty cycle |
The HO11 excels at capturing electrical waveforms up to 10 MHz. Connect a probe to visualize voltage changes, frequency, and timing in real time—ideal for power ripple, switching signals, or sensor outputs.
Tip: To analyze high-frequency sound (e.g., ultrasound), first convert it to an electrical signal using a microphone or ultrasonic sensor, then feed it into the oscilloscope.
Need Higher Frequencies? Meet the DOS1102S
For signals beyond 10 MHz, upgrade to the Hanmatek DOS1102S benchtop digital oscilloscope:
- Bandwidth: 110 MHz
- Sampling Rate: 1 GSa/s
- Channels: Dual-channel
- Built-in Tools: 25 MHz arbitrary waveform generator, FFT spectrum analysis, auto measurements
With FFT mode, you can instantly view frequency components—perfect for R&D, repair, and education.
Oscilloscope ≠ Acoustic Locator: Know the Limits
Can an oscilloscope locate a high-frequency sound source? No. Here’s why:
| Feature | Supported? | Explanation |
|---|---|---|
| Electrical waveform display | ✅ | Core function |
| Frequency measurement | ✅ | Via FFT |
| Direct sound input | ❌ | No built-in microphone |
| Sound source direction | ❌ | Cannot calculate phase/time differences |
Sound localization requires multiple microphones to detect phase or intensity differences across positions. Oscilloscopes process voltage over time, not spatial acoustics.
How to Detect and Locate High-Frequency Sound
| Goal | Recommended Solution |
|---|---|
| Detect high-frequency sound | Ultrasonic sensor + HO11 / DOS1102S |
| Visualize sound waveform | Microphone preamp + Oscilloscope FFT |
| Pinpoint sound source location | Acoustic camera or microphone array (beamforming) |
Product Comparison
| Model | Bandwidth | Channels | Portability | Best For |
|---|---|---|---|---|
| HO11 | 10 MHz | 1 | High | Field diagnostics |
| DOS1102S | 110 MHz | 2 | Medium | Lab, R&D, education |
Conclusion: Use the Right Tool for the Job
Hanmatek oscilloscopes are electrical signal experts—not acoustic locators. Match your tool to the task:
- HO11 → Portable high-frequency signal capture
- DOS1102S → Advanced bandwidth and analysis
- Sound source localization → Use dedicated acoustic systems
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