Battery Included: Yes Hign-concerned Chemical: None Measurement Bandwidth: 10KHz-1.5GHz Frequency Range: 10KHz-1.5GHz Name: Spectrum Anslyzer -H4 Vector Network Antenna Analyzer 10KHz-1.5GHz MF HF VHF UHF Antenna Tuner nano vna -H Features: This Nano VNA is a DIY product that provides perfect vector network measurement capabilities, tiny and handheld, stand-alone with 4-inch LCD display, portable with 1950mAh battery powered or USB powered. The improved frequency algorithm can use the odd harmonic extension of si5351 to support the measurement frequency up to 1.5GHz. The 50K-300MHz frequency range of the si5351 direct output provides 70dB dynamic, The extended 300M-900MHz band provides 60dB of dynamics, and the 900M-1.5GHz band is 40dB of dynamics. The default firmware main function is used for antenna performance measurement. The TX/RX method can measure the complete S11 and S21 parameters. If you need to obtain S12 and S22, you need to manually replace the transceiver port wiring Using PC software NanoVNASaver, it can connect to a and extracts the data for display on a computer, and for saving to Touchstone files. Color: As Shown Material: plastic Package Contents: 1X -H4 kit Only 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.