The LFG-1300S is an extremely versatile signal source for design, development and service applications. It provides a choice of sine, triangle, sawtooth, square and pluse signals over the frequency range of 0.002 Hz to 2 MHz. Voltage control of the frequency of the master oscillator permits linear or logarithmic sweep using internal or externally-applied sweep control. In addition, an internal modulator permits amplitude modulation with the option of a suppressed-carrier mode. Calibrated control of the output level is provided, as well as variable dc offset. A fixed TTL output is also provided. Figure 1. LFG-1300S Function Generator 2. FEATURES 1. Wide frequency range, 0.002 Hz to 2 MHz in eight ranges. 2. Choice of output waveform includes sine, triangle, sawtooth square and pulse signals. In addition, control of dc offset permits the superimposition of d-c levels on the output signal. 3. A separate TTL output with a fan-out of 20 permits direct drive of TTL logic circuits. 4. Low distortion, a THD of 0.5% or less is maintained throughout the frequency range. 5. Built in swept frequency function provides a choice of linear or logarithmic sweep with variable sweep width and rate. A sawtooth for horizontal axis drive to an oscilloscope is provided. 6. External sweep-control voltage applied at the VCG connector, permits external control of frequency, sweep, or frequency modulation of the master oscillator. 7. An internal amplitude modulator permits both AM and doiible-sideband suppressed-carrier modulation for communications and instrumentation applications. 8. Step attenuators provide 10, 20, and 40 dB steps for a total attenuation of 70 dB into a 50 ohm load. An output control provides continuous control of signal level into the attenuator.