Duty Cycle, DC offset, sweep rate, sweep width and amplitude are controlled by the operator. The Tektronix CFG250 2 MHz Function Generator produces sine, square and sawtooth waves and TTL signals. Its applications include testing and calibration of audio, ultrasonic and servo system. the CFG250’s sweep function can be internally controlled or controlled by the operator. The CFG250 has an output range of 0.2 Hz to 2 MHz. The Tektronix CFG250 has a locking, multi-position handle that folds under the instrument to allow stacking with other instruments of the same series.