Product Description DIY Vector Network Measurement Device Experience the power of RF measurements with this compact and efficient DIY tool. Featuring a 2.8-inch touch screen and TX/RX measurement capabilities, this device is designed to help you determine complete S11 and S21 parameters. For advanced users, manually configuring the transceiver port allows you to access S12 and S22 measurements. Features: Export Touchstone (snp) files via PC control software for radio design and simulation. Enhanced frequency algorithm using si5351's odd harmonic extension supports measurements up to 900MHz. Boasts a dynamic range of better than 70dB for 50k-300MHz, 50dB for 300M-600MHz, and 40dB for 600M-900M. Portable design crafted for RF enthusiasts who need a functional gadget on the go. Specifications: Material: PCB Color: Black Measurement Frequency: 50KHz~300MHz (up to 900MHz with extended firmware) RF Output: -13dBm (max -9dBm) Frequency Accuracy: