A. This instrument has four interfaces: single point measurement, scanning, system information, correction and calibration. It defaults to the single - point measurement interface. The aluminum alloy shell can help prolong the service life. B. Note: For the calibration, each time calibration correction will automatically change to the calibration. Meanwhile, to maintain the integrity of the calibration, during the calibration process, the automatic shutdown function may not work. C. The attached video shows how to open the device. The buttons on the panel, numbered 1, 2, 3, 4 from left to right, require pressing 2 and 4 simultaneously. D. Startup & Shutdown: Hold down the CTRL key and press the power switch button. In a certain state, long - press (more than 2S) the switch button, and after releasing it, the instrument will shut down. E. Advice when using: To ensure the accuracy of measurement and calibration, preheat the instrument for at least 15 minutes. Try to use RF cables and connectors. F. Model No.: PS100 G. Working Frequency: 137.5MHz~2.7GHz H. Stepped Frequency: 1kHz I. Display: 2.4 - inch TFT with a resolution of 320*240 (QVGA) J. Power Consumption: less than 1.5W K. Charging Current: 400mA L. Charging Port: USB M. Power Off: Can be set from 5 - 60 minutes N. Measured Parameters: Impedance, reactance, SWR and S11 O. Resolution: 4 - digit readings P. Frequency Accuracy: less than +/- 10ppm Q. Connector: SMA - K R. Impedance Measurement Range: - 1 ohm~1000 ohm @frequency less than 1300MHz; - 1 ohm~300 ohm @frequency more than 1300MHz (Impedance Absolute Value) S. Standing Wave Measurement Range: - 1~65 @frequency less than 1300MHz; - 1~10 @frequency more than 1300MHz T. S11(dB) Measurement Range: 0dB to - 50dB U. Error (Single - point measurement): - For Impedance: less than Impedance absolute value x 5% +/- 0.1 ohm (Z less than 200 ohm, less than 1.5GHz) - For Standing Wave: less than Effective readings x 10% +/- 0.1 - For S11: 0.1dB/5 (0dB to - 10dB) - For (dB/): 1dB/10 (- 10dB to - 20dB); 5dB/20 (- 20dB to - 40dB) V. Directivity: less than 35dB (140MHz to 2GHz after calibration); less than 30dB (2GHz to 2.7GHz) W. Scanning Points: 280 X. Output Level: - 18dBm Y. Working Temperature: 0 to 40 Z. Atmospheric Pressure: 860hPa~1060hPa AA. Colour: black BB. Material: Aluminum alloy CC. Package Contents: - 1 * PS100 Antenna Analyzer SWR Meter with data cable - Only the above package content is included, other products are not. DD. Note: Light and different displays may cause the color of the item to appear a little different from the real thing. The measurement error allowed is +/- 1 - 3cm.