Lower Power Supply Noise, Smaller Noise When Using Harmonics;Built-In 400mah Battery, Micro-Sd Supports Up To 32gb, And Only Supports Spi Mode.Add A Micro-Sd Card To Save Test Data; This Is A Diy Product That Provides As Complete A Vector Network Measurement Function As Possible In A Credit Card Size. Contains A 2.8-Inch Touch Screen, 400mah Battery, Tx/Rx Mode Measurement, And Can Measure Complete S11 And S21 Parameters. If You Need To Obtain S12 And S22, You Need To Manually Change The Transceiver Port Wiring.Add Support;Modify The Port Names To Port1 And Port2Description:1. Measurement Frequency: 50KHz ~ 1.5GHz2. Rf Output: -13dbm (Maximum -9dbm)3. Frequency Accuracy: Less than 2ppm4. Frequency Stability: Less than 0.5ppm5. Measurement Range: Measurement Range: 70db (50khz-300 Mhz), (50db (300m-900mhz), 40db (900m-1500mhz));6. Port Swr: Less than 1.17. Display: 2.8-Inch Tft (320x240)8. Usb Interface: Usb Type-C Communication Mode: Cdc (Serial)9. Power Supply: Usb 5V 120mA, Built-In 400mAh Battery, Maximum Charging Current 1a, Can Be Used Continuously For More Than 4 Hours10. Number Of Calibration Points: 101 (Fixed)11. Number Of Scanning Points: 101 (Fixed)12. Display Traces: 4, Markers: 4, Settings Saved: 5color: BlackMaterial: ABSPackage Contents:1 x Host (Including 2.8-Inch Touch Screen, 400mAh Battery)2 x 20cm SMA Male To Male RG174 RF Cable1 x Type-C To Type-C Cable1 x USB Type-C Data Cable1 x Touch Pen1 x Pick1 x SMA Simple Calibration Kit Load1 x SMA Simple Calibration Kit OPEN1 x SMA Simple Calibration Kit SHORT1 x SMA Female To Female ConnectorNote:Different Batches May Have Differences In Product Appearance, Color, And Printed Characters, Which Will Not Affect The UseOnly 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.