Model 4013B is a versatile DDS (direct digital synthesis) sweep function generator with high signal precision and stability. These instruments generate sine and square waveforms up to 7 MHz or 12 MHz, including triangle waveforms up to 1 MHz. Both models provide variable output voltages from 0 to 10 Vpp into 50 ohms or up to 20 Vpp into open circuit. A continuously variable DC offset allows the output to be injected directly into circuits at the correct bias level. Easily change all waveform parameters using the intuitive menu-driven front panel keypad, control knob, and easy-to-read LCD. Convenient waveform and range selection buttons let users make quick and precise adjustments. Features: Sine and square frequency range: 0.1 Hz - 12 MHz Triangle/ramp frequency range: 0.1 Hz - 1 MHz Sine, square, and triangle/ramp waveform generation Linear and logarithmic sweep Adjustable duty cycle Adjustable DC offset Store and recall up to 9 instrument settings Output On/Off button Overvoltage, overcurrent, and short circuit protection on main output Specifications: Channels: 1 Frequency Maximum: 12 MHz Frequency Minimum: 1 uHz (0.000001 Hz) Functions: Sine, Square, Triangle Max Amplitude Vpp @ 50 ohms: 10 V Arbitrary: No Screen Type: LCD Color Screen: No Digital Amplitude Resolution: 3 Bits Triggering: No Modulation Types: None Graphical Display: Yes Direct Digital Synthesis (DDS): Yes