1.Portable 1-port vector network analyzer GS320 for measuring matching characteristics of passive and active radio equipment (antennas, cables, filters, attenuators, amplifiers, etc.). . The device allows you to measure parameters such as complex reflection coefficients, standing wave ratio (VS WR), impedance, conductance, amplitude, phase, loss and fault distance in cables. 2.The unit is intended for amateur radio use as it is not a professional measuring instrument. The presence of a built-in battery allows you to make measurements in laboratory and external conditions. Device menu language: English Operating frequency range: 23MHz-6200MHz Frequency resolution, for frequencies 100-6200 MHz: 10KHz Maximum number of scan points: 1000 Scanning rate: 1000 points/s The direction of , uncorrected throughout the range: 12 dB Directivity effective (after full single-port calibration): 50 dB Standing wave ratio at the input: Less than 2 Phase measurement precision: 1.5 Magnitude measurement precision: 0,25 dB Resolution determining the distance to fault: (CxVF)/2S m The maximum length of the measured cable 4 , at =1: 3000m Maximum DC input voltage: 25V Displayed plots: the chart; chart; the phase of the reflection coefficient; magnitude; logarithmic magnitude; VSWR; distance-to-fault; cable loss Number of user settings to save: 8 Operating temperature range: 0-40 Screen diagonal: 3.2inch Screen type: touch, resistive Battery capacity: 4000mAh Colour:Black Material:Metal + Plastic Package Contents: 1 x GS320 Vector Network Analyzer set(The above model, some accessories are in random colors, and specified colors are not accepted. There are slight differences in styles, which not affect the use) 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.