This document introduces the GF 265 model of 81 GÉNÉRATEUR DE FONCTIONS, which has a frequency range of 0.18Hz - 5MHz, very high frequency accuracy (0.005%), and very high sine quality (distortion <0.1%). It supports internal or external AM, FM, FSK, and PSK modulation schemes, internal linear or logarithmic sweep, and external frequency meter from 0.8Hz to 100MHz. It also has storage for 14 setups and parameters, 50Ω and TTL output protected up to ±60V, adjustable duty cycle (10% to 90%), and offset independent of the attenuator.