1991 - Racal Dana Frequency Counters

1991 Spec Sheet

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Technical Specifications

Max. Freq.

Freq. Resolution [Digits]

Frequency, Period, Ratio, Time interval

Extra Specifications
Univwersal Timer/Counter

Product Description

The 1991 is a Universal Timer/ Counter designed for system or bench use. Basic measurement functions include Frequency, Period, Time Interval, Totalize, Phase, and Ratio.

  • Frequency Range:
    • Input A: DC to 160 MHz DC-coupled; 10 Hz to 160 MHz AC-coupled;
    • InputB: DC to 100 MHz DC-coupled;10 Hz to 100 MHz AC-coupled.
  • Sensitivity:
    • Sine Wave: 25 mVrms DC to 100 MHz; 50 mVrms to 160 MHz;
    • Pulse: 75 mV p-p, 5 ns min.width