1. Introduction
The HTOOL SA8 Portable Panoramic Spectrum Analyzer (RF Multimeter) is a versatile device designed for measuring signal spectrum within the 35MHz to 6.2GHz frequency range. It identifies the amplitude and frequency of received signals and supports various technologies including WiFi, 2G, 3G, 4G, LTE, CDMA, DCS, GSM, GPRS, and GLONASS. This manual provides essential information for the safe and efficient operation of your SA8 Spectrum Analyzer.
Figure 1: HTOOL SA8 Spectrum Analyzer
2. Package Contents
Please check the package contents upon receipt to ensure all items are present and undamaged:
Figure 2: SA8 Spectrum Analyzer and included accessories
- HTOOL-SA8 x1
- USB Type-C Charging Cable x1
- N-Type K to SMA-J Adapter x1
- BNC Type K to SMA-JJ Adapter x1
- F-Type K to SMA-J Adapter x1
- 30 cm SMA-J Connecting Cable x2
- SMA-KK Adapter x1
- Screen Touch Pen x1
3. Setup and Initial Use
3.1 Device Overview
Figure 3: Device Ports and Controls
- RF IN: Input for spectrum analysis.
- Signal Generator RF Output: Output for signal generation.
- Type-C Port: For charging and data connection to a computer.
- ON/OFF Switch: Power control.
- MKR, MENU, FREQ, AMPL, SPAN +/- Buttons: Navigation and parameter adjustment.
3.2 Powering On and Charging
- Ensure the device is charged using the provided USB Type-C charging cable. The SA8 has a built-in 3000mAh rechargeable battery.
- Toggle the ON/OFF switch to power on the device.
3.3 Language Selection
The device supports Chinese, English, and Russian languages.
Figure 4: Language Selection Interface
Navigate to the 'Device' menu and select your preferred language (English, Chinese, or Russian) from the options.
3.4 Connecting to a Computer
The SA8 can be connected to a computer via the Type-C interface for operation with exclusive host computer software. This allows for more intuitive large-screen data visualization and real-time data export.
Figure 5: Host Computer Software Interface
Note: A serial port driver may need to be installed for computer communication. The host computer program and manual are available in electronic format; please contact the seller for these resources.
4. Operating Instructions
The SA8 Spectrum Analyzer offers various functions for signal analysis and generation. Use the navigation buttons (arrows) and function buttons (MKR, MENU, FREQ, AMPL, SPAN +/-) to operate the device.
Video 1: Demonstration of SA8 interface and functions.
4.1 Spectrum Analysis
The device displays the spectrum of signals received via the RF IN port. You can adjust the frequency range and other parameters to focus on specific signals.
- Frequency Settings: Use the FREQ button to access frequency parameters.
- Center: Set the center frequency of the scan.
- Span: Define the frequency range around the center frequency.
- Start/Stop: Manually set the start and stop frequencies for the scan.
- Amplitude Settings: Use the AMPL button to adjust amplitude display.
- Grid step: Adjust the vertical grid spacing (e.g., 5 dB, 10 dB).
- Reference amplitude: Set the top reference level for the display (e.g., -16 dBm to -29 dBm).
- Scale: Choose between dBm or dBuV units.
- Z in: Select input impedance (50 Ohm or 75 Ohm).
- Markers: Use the MKR button to enable and configure markers for precise measurement.
- Enable/disable individual markers (Peak 1, Peak 2, Peak 3, Peak 4).
- Toggle Waterfall display.
- Toggle Min trace and Avg trace.
4.2 Signal Generator
The SA8 includes a built-in signal generator. Connect the device's Signal Generator RF Output to your desired circuit or antenna.
- Generator Menu: Access via the MENU button, then select 'Generator'.
- On/Off: Enable or disable the signal generator.
- Tracking: Enable tracking mode.
- Frequency: Set the output frequency (35MHz-6.2GHz).
- Power: Adjust the output power level (e.g., -15 dBm to -25 dBm).
4.3 Multi-Parameter Measurement (S11/S21/SWR)
The SA8 supports S11/S21/SWR multi-parameter measurements, leveraging its built-in signal tracking source and dual-channel capabilities (input and output can be used synchronously).
Figure 6: Key Features of SA8
For detailed instructions on performing S-parameter measurements, refer to the electronic manual available from the seller.
5. Maintenance
5.1 General Care
- The SA8 features a durable metal aluminum case. Handle with care to prevent damage.
- Keep the device clean and free from dust and moisture.
- Use the provided screen touch pen for operating the resistive touch screen to avoid scratches.
5.2 Software and Firmware Updates
The equipment software is constantly updated and iterative to continuously optimize the user experience. The system can be updated by the user via firmware.
| Document | Illustrate | Date |
|---|---|---|
| V1.0 | Initial Release. Contains the basic mustache function, Signal source function. Applicable Firmware: V3.0.8 and earlier | 2025-01 |
| V2.0 | Modified and added the function of source tracking. Added Appendix Applicable Firmware: V3.0.19 | 2025-05 |
For firmware updates, connect the device to a computer via the Type-C interface and follow the instructions provided with the electronic manual or host computer software.
5.3 Battery Management
The SA8 is equipped with a built-in 3000mAh rechargeable battery. To prolong battery life:
- Charge the device fully before first use.
- Avoid extreme temperatures.
- The device has an 'Idle shutdown' setting (e.g., 15 min, never). Adjust this in the 'Device' menu to conserve power.
6. Troubleshooting
If you encounter issues with your HTOOL SA8, consider the following common troubleshooting steps:
- Device not powering on: Ensure the battery is charged. Connect the Type-C cable to a power source and check the charging indicator.
- No signal detected: Verify that the RF IN port is correctly connected to the signal source using appropriate cables and adapters. Check the frequency and amplitude settings.
- Incorrect readings: Ensure the correct input impedance (50 Ohm or 75 Ohm) is selected in the Amplitude settings. Calibrate the device if necessary (refer to the electronic manual for calibration procedures).
- Computer connection issues: Ensure the correct serial port driver is installed on your computer. Try a different Type-C cable or USB port.
For more complex issues or if the problem persists, please contact customer support.
7. Specifications
The following table details the performance parameters of the HTOOL SA8 Spectrum Analyzer:
Figure 7: Performance Parameters
| Parameter | Value |
|---|---|
| Model | HTOOL-SA8 |
| Measuring range | 35MHz-6.2GHz |
| Dynamic range in the band 35-3000 MHz | 85 dB |
| 3000-4500MHz noise floor | 85 dB |
| Maximum span | 6165 MHz |
| Bandwidth | 170 kHz |
| Scanning speed | 2000 MHz/s |
| 35-3000 MHz noise floor | <-100 dBm |
| 3000-4500 MHz noise floor | <-105 dBm |
| 4500-6200 MHz noise floor | <-95 dBm |
| Impedance | 50ohm |
| VSWR over the operating frequency range | <1.5 |
| Internal attenuator | 0-30 dB |
| Attenuation up to 10 dB of error | 1.5 dB |
| The attenuation range is 10 to 20 dB of error | 3dB |
| Te Atenate Languiz pressed Eroben 20 to 30 Deb | 5 dB |
| Track the output frequency of the generator | 35MHz-6.2GHz |
| Track the output frequency of the generator | -15 to -25 dBm |
| Accuracy in the dynamic range | +/-1.5dB |
| The maximum input power of the attenuator is 0dB | 10 dBm |
| The maximum input power of the attenuator is 20dB | +20 dBm |
| Maximum input measurement signal | +10 dBm |
| Maximum input DC voltage | 25 V |
| Battery capacity | 3000mA |
Additional features:
- Display: 3.2-inch color resistive touch screen.
- Portability: Lightweight, small, and convenient for outdoor measurements.
Figure 8: SA8 Key Features and Design
8. Warranty and Support
The HTOOL SA8 supports secondary development through its local Type-C interface (virtual serial port). This allows for controlling the operation of the machine and obtaining spectrum data collected by the machine using "HTOOL-SA8 Communication Protocol-Custom". The "HTOOL-SA8 SCPI Command" provides instructions that follow the SCPI standard.
If you require a host computer program or the full electronic manual, please contact the seller for assistance. Continuous software updates and iterative improvements are provided to optimize the user experience.
9. User Tips
Based on user feedback and common inquiries:
- For precise measurements, especially of weak signals, ensure proper shielding and use high-quality cables and adapters to minimize interference.
- Regularly check for firmware updates to benefit from improved dynamic range, more accurate scanning values, and new features like source tracking.
- When using the host computer software, familiarize yourself with the SCPI commands for advanced control and data export capabilities.
- Utilize the marker functions (Peak, Waterfall, Min trace, Avg trace) to efficiently analyze complex spectrum data and identify specific signal characteristics.