Your Tektronix digitizing oscilloscope is a superb tool for acquiring, displaying, and measuring waveforms. Its performance addresses the needs of both benchtop lab and portable applications with the following features: 500 MHz maximum analog bandwidth. 1 Gigasample/second maximum digitizing rate (TDS 540); 500 Megasamples/second maximum digitizing rate (TDS 520). Four-channel acquisition—the TDS 540 offers four full-featured channels; the TDS 520 offers two full-featured channels and two channels with limited vertical scale selections: 100 mV, 1 V, and 10 V. Waveform Math—Invert a single waveform and add, subtract, and multiply two waveforms. On instruments equipped with option 2F, integrate or differentiate a single waveform or perform an FFT (fast fourier transform) on a waveform to display its magnitude or phase versus its frequency. Eight-bit digitizers. Up to 15,000-point record length per channel (50,000-point optional). Full GPIB software programmability. GPIB hardcopy output. On instru- ments equipped with option 13, hardcopy output using the RS-232 or Centronics ports. Complete measurement and documentation capability. Intuitive graphic icon operation blended with the familiarity of traditional horizontal and vertical knobs. On-line help at the touch of a button.