Racal Dana 1991

The Racal Dana 1991 Universal Timer / Counter measures Frequency, Period, Time Interval, Ratio, Totalize, Phase, and Peak Amplitude. The 1991 Frequency range from DC to 160MHz- Channel A’s sensitivity is 25 mV rms up to 100MHz, above 100MHz, it triggers on 50 mV rms to 160MHz- Channel B has same sensitivity as Channel A except that the frequency range is 10Hz to 100MHz. The 1991offers a 9-digit display for the resolution required to make accurate measurements. The 1991’s other outstanding features include auto-triggering and attenuating, direct digital trigger entry, comprehensive external arming, time-interval delay, extensive math functions plus offsetting and normalization capabilities.