Test Equipment

Victor VC3165 Frequency Counter

Victor VC3165 Frequency CounterWhen working with radio circuits it’s often essential to know that the operating frequency is correct.

Even a small variation of frequency can lead to quite considerable frequency errors further on in the circuit.

Almost all modern radios derive their stability from a “reference frequency” circuit, and the frequency counter is essential to ensuring these are correct.

This model of frequency counter is capable of measuring frequencies between 0.01Hz up to 2.4GHz with a variable gate time that may continuously varied from 100ms to 10s.

The accuracy of a frequency counter is strongly dependent on the stability of its timebase.

A timebase is very delicate like the hands of a watch, and can be changed by movement, interference, or even drift due to age, meaning it might not “tick” correctly.
This can make a frequency reading, when referenced to the timebase, seem higher or lower than the actual value.

Highly accurate circuits are used to generate time-bases for instrumentation purposes, usually by using a quartz crystal oscillator.

3 thoughts on “Victor VC3165 Frequency Counter

  1. I’m using this primarily to control output frequency from a crystal oscillator in a ham operator radio telescope. It has proved to be a professional piece of equipment and performs well. I WOULDN’T GO WITHOUT IT.

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