Plus is a portable handheld vector network analyzer (VNA) designed to measure reflection and transmission coefficients. Originally designed by edv555. After several upgrades, Plus is the highest performance version at present, with the measurement frequency range upgraded to 50KHz-2.7GHz, and the performance is the previous 1.5GHZ old version Bandwidth: 50KHz-2.7GHz Dynamic range: 80dB (50KHz-900MHz) 60dB (900MHz-1.5GHz) 50dB (1.5GHz-2.7GHz) Reflection coefficient: SWR: Less than 1.1 Frequency accuracy: Less than 0.5 ppm Frequency stability: Less than 2.5 ppm Scan points: 101 Built-in 1000mAh battery Micro-SD supports up to 32GB, and only supports SPI mode. Add RTC support; Change port names to Port1 and Port2 Measure S parameters, VSWR, phase, delay, chart, etc. Color: Black Material: plastic Package Contents: 1 x host (with 2.8-inch touch screen, 1000mAh battery) 2 x 20cm SMA male to male RG174 cable 1 x Type-C to Type-C cable USB Type-C data cable 1 x touch pen 1 x pick 1 x SMA simple calibration kit LOAD 1 x SMA simple calibration kit OPEN 1 x SMA simple calibration kit SHORT 1 x SMA female to female connector 1 x memory card 32G 1 x Simple English Instruction Manual 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.