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The Tektronix FG 501A provides low-distortion outputs from 0.002 Hz to 2 MHz. It is capable of generating five basic waveforms-sine, square, triangle, ramp, and pulse-at output levels up to 30 V peak-to-peak with up to ± 13 V of offset from a 50-ohm source. Waveform triggering and gating are provided with a variable phase control to permit up to ±90 degrees of phase shift for generating haver-sines, sin pulses, and haver triangles. A step attenuator provides 60 dB of output signal attenuation in 20-dB steps with an additional 20 dB of variable attenuation. Variable symmetry from 5% to 95% provides ramps and pulses. Pulse rise time is <= 25 ns. Audio sine-wave distortion is <= 0.25% and audio amplitude flatness is within 0.1 dB. Frequency Range with var. symmetry: 0.002 to 2 MHz 200 kHz ±10%. Dial Accuracy % of full scale: <=3. Amplitude open circuit: 30 Vpp. Attenuator in 20-dB steps: 0 to -60 dB. Offset open circuit: ±13 V dc. Peak Signal + Offset open circuit: ±15 V dc. Output Impedance: 50 ohms. Amplitude Flatness 10-kHz ref, 50-ohm load): Sine ±0.1 dB, 20 Hz to 20 kHz; ±0.5 dB, 20 kHz to 1 MHz, ±1 dB, 1 MHz to 2 MHz; Triangle ±0.5 dB, 20 Hz to 200 kHz; ±2 dB, 200 kHz to 2 MHz; Square ±5 dB 20 Hz to 2 MHz. Square-Wave Response: <= 2-ns rise/fall; <=3% p-p aberrations.
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