- Built-in calibration signal generator: when used standalone, it functions as a dual-output signal generator with MF/HF/VHF sine output from 0.1 to 350 MHz and UHF square-wave output from 240 to 960 MHz. It supports automatic self-test and calibration at low input levels. - Input frequency range and channels: two inputs are provided for RF testing. A high-quality MF/HF/VHF input covers 0.1 to 350 MHz, and a UHF input covers 240 to 960 MHz. - PC control and interface: can be connected to a PC via USB and uses Serial-over-USB (CDC). This enables a wide set of commands, with the driver automatically downloaded when the PC is connected. - ESD protection: firmware version 3.1 includes a new ESD protection feature with installed diodes, delivering more sensitive response, effective anti-static protection, higher reliability, and longer life. - Applications and practicality: ideal for RF bench testing and calibration of RF front ends using the built-in generator for automated self-test; suitable for automated measurements or test routines in R&D and production environments via PC control; useful for UHF signal testing and calibration of receivers, mixers, or related equipment using both sine and square-wave outputs. - Benefit highlights: compact dual-input, dual-output RF analyzer with integrated calibration signal generation, USB PC control, and enhanced ESD protection for stable, repeatable measurements and longer device life.