Features MAIN OBJECTIVE: Vector impedance analyzer is mainly used to test antenna impedance, RF device impedance, PCB impedance, etc. MEASURING SETTING: Can be used to measure resistance, reactance, standing wave and S11, with wide measurement range, high resolution and accuracy. OTHER FUNCTIONS: The single point measurement result consists of 4-digit significant digits, 280 digitization points, with calibration function, stable and reliable. BUILT-IN BATTERY: The antenna analyzer has 2000mAh lithium polymer battery, USB interface for charging, can work continuously for more than 4 hours. 2.4 INCH TFT DISPLAY: The antenna impedance analyzer adopts 2.4 inch TFT screen, lightweight and portable, suitable for outdoor and high altitude work. Specification: Item Type: Antenna Analyzer Working frequency: 137.5MHz-2700MHz No frequency: 1 kHz. Screen: 2.4 inch TFT resolution 320x240 (QVGA) Battery: 2000mAH polymer lithium battery (built-in battery) Power consumption: <1.5W Charging current: 400mA. Charging interface: USB (only used as charging interface) Automatic shutdown: adjustable (continuously on, 5 to 60 minutes optional) Measurement parameters: resistance, reactance, standing wave, S11 Resolution:4significant value Frequency accuracy: <±10ppm Connector: SMA-K Measuring range: Impedance: frequency <1,300 MHz (absolute impedance value), frequency > 1,300 MHz (absolute impedance value) Standing wave: frequency <1300MHz, frequency >1300MHz S11: 0dB to -50dB Error (single point measurement): Impedance: Z <200Ω, frequency <1.3GHz; Z <200Ω, frequency >1.3GHz S11: 0 dB to -10 dB, -10 dB to -20 dB, -20 dB to -40 dB Standing wave: <2, 2 Package List 1 x Antenna Analyzer 1 x USB Cable 1 x User Manual