The Tektronix TDS540 Oscilloscope delivers digital signals and has a 500 MHz bandwidth. It can identify elusive problems with a 20 s/div to 100 ps/div sweep speed and a 1 GSa/s sample rate. This four channel oscilloscope has a GPIB interface and BNC (f) input connectors for user convenience. Equipped with up to 15000 pt/sec deep memory, this oscilloscope can capture long signals with ease. Featuring a 7-inch display, this oscilloscope provides an 8 bits vertical resolution.