1、4 INTERFACES: The antenna analyzer has 4 interfaces, single point measurement, scan, system information and calibration, default single point measurement interface initialization. 2、CALIBRATION FUNCTION: The one time calibration option will automatically switch to user calibration, and during calibration process, the automatic shutdown function will be disabled. 3、EASY OPERATION: Hold down the CTRL button to power off, press the power switch button, and simultaneously press the second button and the power button to power on. 4、WORKING RANGE: This antenna analyzer operates in the frequency range of 35mhz‑7ghz, can measure resistance, reactance, standing and S11, with high accuracy and stability. 5、CLEAR DISPLAY: Adopts 4in TFT display with a resolution of 320x240, and adopts aluminum alloy shell, which is resistant to wear and corrosion, and has a long service life. 1 x Antenna Analyzer1 x Data Cable1 x User Manual Item Type: Antenna Analyzer MeterModel: PS200Material: Aluminum AlloyFrequency: 34.375mhz- 2.7ghzSpacing: 1khzDisplay: 2.4in TFT resolution 320x240 (QVGA)Battery: 1 x 306090 3.7V 2000mAh polymer lithium battery (with built in battery)Power Consumption: < 1.5WCharging Current: 400maCharger Port: USB Charger PC OnlyAuto Power Off: Adjustable (Normally Open; 5-60min)Measurement Parameters: Measurement Parameters: Resistance, reactance, standing, s11Resolution: 4 significant digitsFrequency Accuracy: <±3ppmConnector: SMA KMeasuring Range: Impedance: 0.1-1000Ω (absolute impedance value);Standing: 1.000 65;S11 (Db): 0.1db-60dbError (single Point Measurement): Impedance: < Absolute value of impedance x 5% 0. 0.1Ω (z <200Ω, < 1.5ghz)Permanent: < Effective reading x 10% ± 0.1S11 (Db/°): 0.1 db/5° (0db~-10db);Db/°: 1db/10° (-10db~-20db), 5db/20° (-20db~-40db)Directivity: <35db (140Mhz-2Ghz calibration); <30db (2ghz- 2.7ghz)Scan Points: 280Output Level: -18dBmWorking Temperature: 0-40℃Atmospheric Pressure: 860-1060hpa