Built-in calibration signal generator - When not using the analyzer, it can operate as a signal generator with two outputs: MF/HF/VHF sine output from 0.1 MHz to 350 MHz, and UHF square-wave output from 240 MHz to 960 MHz. It is suitable for automatic self-test and calibration at low input. Input frequency ranges - The analyzer provides two inputs: a high-quality MF/HF/VHF input from 0.1 MHz to 350 MHz, and a lower-quality UHF input from 240 MHz to 960 MHz. PC control - The unit can be connected to a PC via USB and supports the Serial-over-USB (CDC) protocol, enabling a wide range of commands. After connecting the PC, the driver is automatically downloaded. ESD protection - Version 3.1 includes a new ESD protection function with installed diodes, delivering more sensitive response, effective anti-static performance, higher quality, and longer life. Use scenarios - Standalone calibration and self-test: Use the built-in signal outputs to perform automatic self-test and calibration without an external analyzer. - Bench testing across RF bands: Utilize the two inputs to test devices in MF/HF/VHF and UHF ranges, with convenient signal generation options. - PC-driven testing workflows: Connect via USB to control from a PC, run automated tests, and integrate into lab or production test setups using the CDC protocol.