This is a DIY product that provides the most complete vector network measurement function possible in a credit card sizeIncludes a 2.8-inch touch screen, 400mAh battery, TX/RX mode measurementTX/RX method allows complete measurement of S11 and S21 parametersObtaining the S12 and S22 parameters requires manual reconfiguration of the transceiver port wiring, thus increasing the device's versatility in a variety of network analysis tasks.Lower power supply noise, less noise when using harmonics;Measurement frequency: 50KHz - 1.5GHzRF output: -13dbm (max -9dbm)Frequency accuracy: Less than 2ppmFrequency stability: Less than 0.5ppmMeasurement range: Measurement range: 70dB(50kHz-300 MHz),(50dB (300M-900MHz), 40dB (900M-1500MHz));Port SWR: Less than 1.1Display: 2.8-inch TFT (320x240)USB interface: USB type-C Communication mode: CDC (serial)Power supply: USB 5V 120mA, built-in 400mAh battery, maximum charging current 1A, can be used continuously for more than 4 hoursNumber of calibration points: 101 (fixed)Number of scan points: 101 (fixed)Display tracking: 4, Marker: 4, Settings saved: 5Colour:As ShownMaterial:MetalPackage Contents:1 x Vector network antenna analyzer with accessoriesOnly the above package content, other products are not included.Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.