The model FC - 300 is a RF Frequency Counter designed for system and bench use with Max.9 digits resolution, featuring RS-232C (option : GPIB) interface with full remote control capability. The frequency range is from 10Hz to 3GHz and High speed, High resolution measurements are possible. It is also equipped with measurement functions for period, peak voltage and auto trigger, auto limiting test. The model FC-300 is designed for use in R&D sections and production line such as cellular phone, personal radios, pagers and other products.