Number of calibration points: Maximum 401 (optional), unlimited connection to PC Scan point speed: 600 p or s ( = 4000Hz) Measurement of S-parameters, VSWR, phase, delay, chart, time domain analysis... Interface: USB type-C Communication Mode: CDC (serial) ABS housing: 75mmx133mmx18mm (excluding protrusions) Measurement frequency: 10KHz- 1.5GHz RF output: O0dBm (2dB, fundamental) Frequency accuracy:Less than 2ppm Frequency stability:Less than 0.5ppm Measurement range: 70dB (50kHz-300MHz), (60dB (300M-900MHz), 40dB (0.9G-1.5GHz) (When using harmonic measurements, it is necessary to pay attention to the errors caused by the fundamental nonlinear transformation) Port SWR:Less than 1.1 Display: 3.95Inch TFT (320 x 480) USB interface: USB type-C communication mode: CDC (serial) Power supply: USB 5V 220mA, built-in 2000mAh battery, maximum charging current 1A The product appearance and printed words depending on the batch, but this does not affect use. Colour:As Shown Material:ABS Package Contents: 1set x vector network analyzer with accessories 1 x 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.