Product Features 4" full-view LCD screen with DC dimming for improved clarity in outdoor and indoor environments. Optimized Electric Bridge technology utilizes Si5351 harmonics to measure up to 1.5GHz. Increased output level of CH0 to 0dBm for more accurate reflection measurement. Resolved NanoVNA-H abnormality at around 6MHz. Redesigned power management circuit reduces power noise and USB interference. Upgraded PCB layout for enhanced performance. Includes reserved UART interface for DIY expansions. Durable lightweight ABS shell for device protection. Compatible with computer software for control and real-time display, supporting SNP file export for various radio design and simulation software. Comes with simple calibration parts for optimal measurement accuracy; dual ports pre-calibrated for added convenience. Technical Specifications ABS Shell Dimensions: 75mm x 133mm x 18mm (excluding protrusions) Measurement Frequency Range: 50KHz ~ 1.5GHz RF Output: 0dBm (±2dB, fundamental wave) Measurement Range: 70dB (50kHz-300 MHz) 60dB (300M-900MHz) 40dB (0.9G-1.5GHz) with expansion firmware Note: Nonlinear transformation errors may occur with harmonic measurement. Display: 4" TFT (320 x 480) USB Interface: USB Type-C; Communication Mode: CDC (serial) Power Supply: USB 5V 200mA, Maximum Charging Current: 1A Calibration Points: 101 (fixed) Scanning Points: 101 (fixed) Display Tracking: 4, Marking: 4, Save Setting: 5 Measures S-parameters, VSWR, phase, delay, Smith chart, time domain analysis, etc. Package Includes 1 x NanoVNA-H4 2 x 15cm SMA Male to Male RG316 RF Cables 1 x SMA Female to Female Connector 1 x SMA Simple Calibration Kit SHORT 1 x SMA Simple Calibration Kit OPEN 1 x SMA Simple Calibration Kit LOAD 1 x USB Type-C Data Cable 1 x Type-C to Type-C Cable (For Android mobile phone connection)
