1. Builtin Calibration Signal Generator When not using the analyzer, it can function as a signal generator with two frequency outputs: an MF/HF/VHF sine wave output for 0.1 MHz–350 MHz and a UHF square wave output for 240 MHz–960 MHz. It is used for automatic selftesting and lowinput calibration. 2. Input Frequency Range This analyzer features two inputs: a quality MF/HF/VHF input for 0.1 MHz–350 MHz and a lowerquality UHF input for 240 MHz–960 MHz. 3. PC Control This analyzer can be connected to a PC via USB and implements the SerialoverUSB (CDC) protocol, enabling the execution of a wide range of commands. After connecting to the PC, the driver is automatically downloaded. 4. ESD Protection Function The latest version 3.1 includes a ESD protection feature, equipped with diodes for more sensitive response performance, efficient antistatic capability, improved quality, and longer lifespan.