Function generator features As a function generator, the Metrix (ITT) GX240 can produce a variety of waveforms. Waveforms: Sine, square, and triangle waves Controls: It includes adjustments for signal symmetry, DC offset, and sweep functions. Output: The device provides a 50R output. Frequency meter features The integrated frequency meter can measure signals up to 120MHz, which makes the GX240 a versatile tool for electronic repair and testing.