Feature: 1. 2.4in Display: N1201SA PS100 RF antenna analyzer, 2.4in TFT display, resolution 320 x 240 (QVGA). With single point measurement, scanning, system information, correction and calibration 4 interfaces. 2. Power On And Off: The antenna analyzer is easy to use and powers on by default to the single point measurement interface. Press and hold the CTRL key to turn off press the power on, off button. 3. Premium Material: ANT SWR antenna analyzer is made of premium aluminum alloy shell to extend the service life. Compact design for handheld use and easy portability. 4. Recommendations For Use: To ensure the accuracy of measurement and calibration, warm up the antenna analyzer tester for at least 15 minutes. Try to use premium RF cables and connectors. 5. Measurement Environment: Before measurement and calibration, please make sure you are not in a strong wireless signal to avoid inaccurate measurement due to interference. Specification: Item Type: Antenna Analyzer Material: Aluminum Alloy, LCD Model: N1201SA PS100 Operating Frequency: 137.5MHz-2.7GHz Interleaved Frequency: 1kHz Display: 2.4 Inch TFT, Resolution 320 x 240 (QVGA) Power Consumption: <1.5W Charging Current: 400mA Charging Port: USB Measurement Parameters: Impedance, Reactance, Standing Wave Ratio and S11 Resolution: 4 Bit Readout Frequency Accuracy: <±10ppm - Connector: SMA K Number of Scanning Points: 280 Output Level: -18dBm Battery Type: 2000mAh Lithium Ion Battery (Built in). Package List: 1 x Antenna Analyzer1 x Antenna2 x Adaptor1 x USB Cable Note: 1. For the convenience of the user, each calibration option is automatically changed to user calibration. Also, to ensure the integrity of the calibration, the calibration process is consistently powered on with a faulty automatic power off function.2. If you don't understand the impedance measurement, you can refer to the manual and tutorial of the vector network analyzer. This instrument is equivalent to a single port vector network analyzer.