1. Introduction
The LISM PS100 and PS200 are compact RF Vector Impedance ANT SWR Antenna Analyzers designed for measuring various parameters of antennas and RF circuits. These devices are essential tools for radio enthusiasts, engineers, and technicians for optimizing antenna performance. They can measure resistance, reactance, standing wave ratio (VSWR), and S11 (return loss) across a wide frequency range.
2. Safety Information
- Do not exceed the maximum input power of 10dBm RF and 0VDC to the RF PORT to prevent damage to the analyzer.
- Keep the device away from water and moisture.
- Avoid dropping or subjecting the device to strong impacts.
- Do not attempt to open or modify the device, as this will void the warranty and may cause damage.
- Use only the provided USB cable for charging.
3. Product Overview
The LISM PS100/PS200 features a clear display and intuitive controls for easy operation.
Figure 3.1: Front view of the PS200 Antenna Analyzer with display and controls.
3.1 Components and Controls
- Display: 2.4-inch TFT (320*240 QVGA resolution) for showing measurement data.
- Rotary Encoder: Located at the top right, used for adjusting frequency and navigating menus.
- RF PORT: SMA-K connector (red cap) for connecting the antenna or RF circuit under test. (Warning: 10dBm RF 0VDC Max)
- M Button: Menu button.
- CTRL Button: Control button, often used for mode selection or special functions.
- Left/Right Arrow Buttons: For navigation and parameter adjustment.
- OK Button: Confirm selection or action.
- Power Button: Turns the device on/off.
- Micro USB Port: For charging the internal battery.
- Reset Button: Small button located near the Micro USB port, used to reset the device if it becomes unresponsive.
Figure 3.2: Top and bottom views highlighting the RF PORT, rotary encoder, Micro USB charging port, and Reset button.
4. Specifications
The following table details the technical specifications for the PS100 and PS200 models:
| Feature | Specification |
|---|---|
| Model | PS100 / PS200 |
| Working Frequency (PS100) | 137.5MHz ~ 2.7GHz |
| Working Frequency (PS200) | 34.375MHz ~ 2.7GHz |
| Stepped Frequency | 1kHz |
| Display | 2.4-inch TFT, 320*240 (QVGA) |
| Battery Capacity | 2000mAH (7.4Wh) |
| Battery Included | Yes |
| Power Consumption | <1.5W |
| Charge Current | 400mA |
| Charge Port | Micro USB |
| Auto Power Off | Configurable (5-60 minutes) |
| Measured Parameters | Resistance, Reactance, Standing Wave (VSWR), S11 (Return Loss) |
| Resolution Ratio | 4 number |
| Frequency Accuracy | Approx. 5ppm |
| Connector Type | SMA-K |
| Impedance Measurement Range | 0.1 ~ 1000 Ω |
| Standing Wave Measurement Range | 1.000 ~ 65 |
| S11(dB) Measurement Range | 0dB ~ -60dB |
| Working Temperature | 0 ~ 40 °C |
| Atmospheric Pressure | 860hPa ~ 1060hPa |
5. Setup
5.1 Initial Charging
Before first use, ensure the device is fully charged. Connect the provided USB cable to the Micro USB port on the side of the analyzer and plug the other end into a standard USB power adapter (not included) or a computer USB port. The charging indicator light will show the charging status.
5.2 Powering On/Off
- To Power On: Press and hold the Power button (located bottom right on the front panel) until the display illuminates.
- To Power Off: Press and hold the Power button until the display turns off. The device also supports an auto power-off feature, configurable between 5-60 minutes of inactivity.
5.3 Connecting an Antenna
Carefully remove the red protective cap from the SMA-K RF PORT. Connect your antenna or RF circuit under test directly to this port. Ensure the connection is secure but do not overtighten.
6. Operating Instructions
6.1 Basic Navigation
- Use the Rotary Encoder to scroll through menus or adjust numerical values.
- The Left/Right Arrow buttons can also be used for fine-tuning or navigating options.
- Press OK to confirm a selection or enter a submenu.
- Press M to access the main menu or go back to the previous screen.
- The CTRL button may activate specific functions depending on the current mode.
6.2 Frequency Setting
From the main measurement screen, use the rotary encoder to adjust the operating frequency. The display will show the current frequency (FRQ). The stepped frequency is 1kHz, allowing for precise tuning.
6.3 Performing Measurements
Once the antenna is connected and the desired frequency is set, the device will automatically display the measured parameters:
- R (Ω): Resistance
- X (Ω): Reactance
- VSWR: Voltage Standing Wave Ratio
- S11 (dB): Return Loss in decibels
- |Z| (Ω): Magnitude of Impedance
- ESC (pF): Equivalent Series Capacitance (or Inductance, depending on sign)
6.4 Calibration
The device supports calibration (indicated by 'CAL1' on the display). Refer to the on-screen prompts or the full user manual (if available) for detailed calibration procedures to ensure accurate measurements. Typically, calibration involves connecting specific loads (Open, Short, Load) to the RF port.
6.5 Auto Power Off Setting
To adjust the auto power-off time, navigate through the menu using the 'M' button and arrow keys. You can set the inactivity period from 5 to 60 minutes before the device automatically shuts down to conserve battery life.
7. Maintenance
- Cleaning: Use a soft, dry cloth to clean the device. Do not use abrasive cleaners or solvents.
- Battery Care: For optimal battery life, avoid fully discharging the battery frequently. Charge the device regularly, especially if it will be stored for an extended period.
- Storage: Store the analyzer in a cool, dry place, away from direct sunlight and extreme temperatures. Keep the RF PORT covered with its protective cap when not in use.
8. Troubleshooting
8.1 Device Not Turning On
- Ensure the battery is charged. Connect the device to a USB power source and allow it to charge for at least 30 minutes before attempting to power on again.
- Press and hold the Power button firmly for a few seconds.
8.2 Unresponsive Display/Buttons
- If the device becomes unresponsive, locate the small Reset button on the side (near the Micro USB port). Use a thin, pointed object (like a paperclip) to gently press the Reset button. This will restart the device without losing settings.
8.3 Inaccurate Readings
- Ensure the RF PORT connection is clean and secure.
- Perform a calibration procedure if available and recommended for your specific measurement.
- Verify that the antenna or circuit under test is properly connected and functioning.
9. User Tips
- Calibration Kits: The standard package includes the analyzer, a USB cable, and a user manual. Note that external calibration kits (e.g., Open, Short, Load standards) are typically sold separately and are not included. For precise measurements, especially at higher frequencies, using a proper calibration kit is highly recommended.
- Firmware Updates: Check the manufacturer's website periodically for any available firmware updates that might improve performance or add new features.
10. Warranty and Support
This product comes with a standard manufacturer's warranty. For specific warranty terms, technical support, or service inquiries, please refer to the documentation provided with your purchase or contact the seller directly. Keep your purchase receipt as proof of purchase.
