Feature 1Practical for Testing: Vector impedance analyzer is a portable instrument mainly used to test the impedance of antenna, RF device and circuit board. 2Convenient Carrying: Compact and easy to carry, making it more convenient for special outdoor and high altitude operations. 3Simple Operation: The instrument display screen interface and buttons are clear and simple, easy to use, and easy to operate. 4Long Working Hours: Built in battery, using 2000mAH polymer lithium battery, with a continuous working time of over 4 hours. 5High Accuracy: High resolution, single point measurement result is 4 digit display. It has calibration function, accurate measurement.Item Type: Spectrum AnalyzerWorking Frequency: 34.375-2700MHzFrequency Step: 1kHzDisplay: 2.4in TFT with 320 x 240 resolution, QVGA.Battery: 1 x Rechargeable lithium battery 2000mAh, shipped with built in battery. Power Consumption: <1.5WCharging Current: 400mACharging Interface: USB, only used as a charging interface. Automatic Shutdown: Can be set as always on as well as 5-60 minutes optional. Measurement Parameters: resistance, reactance, standing wave, s11. Resolution: 4 digit effective value. Frequency Accuracy: < 10ppmConnector: SMA-KImpedance Measurement Range: 1~1000, 1~300Standing Wave Measurement Range: 1~65, 1~10S11 Measurement Range: 0dB~-50dBImpedance Single Point Measurement Error: < impedance absolute value x5% 0.1, < impedance absolute value x25% 1. S11 Single Point Measurement Error: 0.5dB/5, 1dB/10, 5dB/20Standing Wave Single Point Measurement Error: 0.15, effective reading x10% 0.1. Directional Single Point Measurement Error After Calibration: <35dB, <25dBScan Points: 280Output Level: -18dBmWorking Temperature: 5~40Atmospheric Pressure: 860~1060hPaCable Length Measurement: < 3meterMeasurement of Characteristic Impedance of transmission lines: 20-300 .wang-edit-text{ font-family:'Arial' !important; } .wang-edit-text table { border-top: 1px solid #000; border-left: 1px solid #000; } .wang-edit-text table td, .wang-edit-text table th { border-bottom: 1px solid #000; border-right: 1px solid #000; padding: 3px 5px; } .wang-edit-text table th { text-align: center; }Package List1 x Spectrum Analyzer1 x USB Cable1 x User Manual