Sell Test Equipment

451 EIP Microwave Frequency Counter


The 451 is a Frequency Counter from EIP Microwave.


  • Capable of measuring the frequency of CW signals
  • carrier signals with FM modulation up to 40 MHz peak-peak deviation at 10 MHz modulation rates
  • Sensitivity is -10 dBm to 10 GHz
  • -5 dBm to 18 GHz
  • Input impedance is 50 ohms
  • Overload protection provided up to 1 W peak from 925 MHz to 18 GHz
  • Direct reading display with 10 kHz resolution over entire operating range
  • Gate times are 100 Ohms and 1 ms
  • Timebase is 10 MHz stability of <3x10E-07/month
  • Display is 7-digit LED with fixed decimal point, leading zero suppression
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