Tektronix DC509

Designed to operate in TM 500 Series Mainframes, the DC509 Counter Module is applicable for bench and lab applications where performance levels are critical and is also ideal for R&D work where flexibility and performance are desired. Features auto-trigger, time interval averaging, and the powerful reciprocal counting technique to make high-resolution frequency and period measurements. 20 mV sensitivity and 10 ns single-shot resolution. Provides eight different measurement functions. 135MHz Both A and B Channels 8-Digit Display 5 ps Resolution, with Averaging