3 Digits Frequency Counters
Last Updated: April 1, 2025
Description
A 3-digit frequency counter is an electronic instrument designed to measure the frequency of an input signal. It displays the frequency measurement in a digital format, typically up to three significant digits. This type of frequency counter is often used for basic frequency measurement tasks where high precision is not critical.
Working Principle
3-digit frequency counters operate on the principle of gating the input frequency into the counter for a predetermined time period. During this time, the counter counts the number of cycles of the input signal. The result is then displayed as a frequency value. This method allows for the digital measurement of signal parameters, providing a more precise measurement compared to older analog methods. Frequency counters are useful because they offer a straightforward way to measure the frequency of a signal, which is a fundamental parameter in many electronic applications.
Applications
3-digit frequency counters are commonly used in educational settings and basic laboratory environments where simple frequency measurements are required. They can be used to measure the frequency of oscillators in electronic circuits, verify the frequency output of signal generators, and perform basic troubleshooting in radio frequency (RF) applications.
Advantages over other Frequency Counters
One advantage of 3-digit frequency counters is their simplicity and ease of use, making them ideal for educational purposes and basic applications. They are typically more affordable than higher-resolution counters, making them accessible for users who do not require high precision.
Limitations
The primary limitation of 3-digit frequency counters is their lower resolution, which restricts their use in applications requiring high precision. They may not be suitable for measuring very high-frequency signals or for applications where small frequency changes need to be detected.
Considerations
When considering a 3-digit frequency counter, it is important to evaluate the initial cost, which is generally lower compared to more advanced models. Operating expenses are minimal, as these devices typically require little maintenance. However, their durability and accuracy may not match that of higher-end models, and they may need to be replaced or recalibrated more frequently if used in demanding environments.
from Red Pitaya, d.o.o.
SDRlab 122-16 External clock is based on the SDRlab 122-16 model that is modified to be used with an external clock oscillator, which is important especially for RF applications that operate at other frequencies, require better quality clock or clock synchronization. [See More]
- Display Digits: 3 Digits; 4 Digits; 5 Digits; 6 Digits
- Frequency Range: 1 to 6.25E7
- Form Factor: Bench top; Rack mount (optional feature); Handheld (optional feature); Computer Board
- Max Channels: 4
from Red Pitaya, d.o.o.
SDRlab 122-16 was developed specifically for software-defined radio and more demanding RF applications. [See More]
- Display Digits: 3 Digits; 4 Digits; 5 Digits; 6 Digits
- Frequency Range: 1 to 6.25E7
- Form Factor: Bench top; Rack mount (optional feature); Handheld (optional feature); Computer Board
- Max Channels: 4
from Red Pitaya, d.o.o.
SIGNALlab 250-12 is most sophisticated Red Pitaya product, built for more demanding industrial applications and research, where robustness and performance matter more than cost. [See More]
- Display Digits: 3 Digits; 4 Digits; 5 Digits; 6 Digits
- Frequency Range: 1 to 6.25E7
- Form Factor: Bench top; Rack mount (optional feature); Handheld (optional feature); Computer Board
- Max Channels: 4
from Red Pitaya, d.o.o.
STEMlab 125-14 4 Inputs is based on STEMlab 125-14 board, but instead of 2 inputs and 2 output channels offers 4 Input channels that with improved performance. [See More]
- Display Digits: 3 Digits; 4 Digits; 5 Digits; 6 Digits
- Frequency Range: 1 to 6.25E7
- Form Factor: Bench top; Rack mount (optional feature); Handheld (optional feature); Computer Board
- Max Channels: 4
from Red Pitaya, d.o.o.
STEMlab 125-14 is our most versatile and popular product, which was introduced to the market in 2013 when Red Pitaya was established. Since then it has been used in a wide variety of contexts, from hobbyists and ham radio operators to industry, research, and space applications. [See More]
- Display Digits: 3 Digits; 4 Digits; 5 Digits; 6 Digits
- Frequency Range: 1 to 6.25E7
- Form Factor: Bench top; Rack mount (optional feature); Handheld (optional feature); Computer Board
- Max Channels: 4
from Red Pitaya, d.o.o.
STEMlab 125-14 is our most versatile and popular product, which was introduced to the market in 2013 when Red Pitaya was established. Since then it has been used in wide variety of contexts, from hobbyists and ham radio operators to industry, research and space applications. [See More]
- Display Digits: 3 Digits; 4 Digits; 5 Digits; 6 Digits
- Frequency Range: 1 to 6.25E7
- Form Factor: Bench top; Rack mount (optional feature); Handheld (optional feature); Computer Board
- Max Channels: 4
from Red Pitaya, d.o.o.
STEMlab 125-14 Edu Pack is based on Red Pitaya's best-selling DAQ platform and with the chosen accessories a perfect fit for educational purposes. [See More]
- Display Digits: 3 Digits; 4 Digits; 5 Digits; 6 Digits
- Frequency Range: 1 to 6.25E7
- Form Factor: Bench top; Rack mount (optional feature); Handheld (optional feature); Computer Board
- Max Channels: 4
from Red Pitaya, d.o.o.
STEMlab 125-14 External clock is based on the STEMlab 125-14 model that is modified to be used with an external clock oscillator, which is important especially for RF applications that operate at other frequencies, require better quality clock or clock synchronization. With this modification, users... [See More]
- Display Digits: 3 Digits; 4 Digits; 5 Digits; 6 Digits
- Frequency Range: 1 to 6.25E7
- Form Factor: Bench top; Rack mount (optional feature); Handheld (optional feature); Computer Board
- Max Channels: 4
from Red Pitaya, d.o.o.
Based on the STEMlab 125-14 Starter kit and it comes with individual ISO17025 certificate. [See More]
- Display Digits: 3 Digits; 4 Digits; 5 Digits; 6 Digits
- Frequency Range: 1 to 6.25E7
- Form Factor: Bench top; Rack mount (optional feature); Handheld (optional feature); Computer Board
- Max Channels: 4
from Red Pitaya, d.o.o.
STEMlab 125-14 Low Noise Bare OEM is the ultimate solution for customization and adaptability in your electronic project. This board, which comes without the usual connectors, provides unparalleled freedom and versatility to tailor your designs according to your specific needs. [See More]
- Display Digits: 3 Digits; 4 Digits; 5 Digits; 6 Digits
- Frequency Range: 1 to 6.25E7
- Form Factor: Bench top; Rack mount (optional feature); Handheld (optional feature); Computer Board
- Max Channels: 4
from Red Pitaya, d.o.o.
STEMlab 125-14 Low Noise is based on a STEMlab 125-14 board that is populated with additional linear analog power for analog power supplies to reduce RF inputs and outputs noise and consequently increase ENOB. [See More]
- Display Digits: 3 Digits; 4 Digits; 5 Digits; 6 Digits
- Frequency Range: 1 to 6.25E7
- Form Factor: Bench top; Rack mount (optional feature); Handheld (optional feature); Computer Board
- Max Channels: 4
from Red Pitaya, d.o.o.
We are setting the industry standard in product quality and customer support, our STEMlab OEM boards are easy to integrate and available in multiple hardware and software configurations. [See More]
- Display Digits: 3 Digits; 4 Digits; 5 Digits; 6 Digits
- Frequency Range: 1 to 6.25E7
- Form Factor: Bench top; Rack mount (optional feature); Handheld (optional feature); Computer Board
- Max Channels: 4
from Red Pitaya, d.o.o.
STEMlab 125-14 is our most versatile and popular product, which was introduced to the market in 2013 when Red Pitaya was established. Since then it has been used in wide variety of contexts, from hobbyists and ham radio operators to industry, research and space applications. [See More]
- Display Digits: 3 Digits; 4 Digits; 5 Digits; 6 Digits
- Frequency Range: 1 to 6.25E7
- Form Factor: Bench top; Rack mount (optional feature); Handheld (optional feature); Computer Board
- Max Channels: 4
from Red Pitaya, d.o.o.
STEMlab 125-14 is our most versatile and popular product, which was introduced to the market in 2013 when Red Pitaya was established. Since then it has been used in wide variety of contexts, from hobbyists and ham radio operators to industry, research and space applications. [See More]
- Display Digits: 3 Digits; 4 Digits; 5 Digits; 6 Digits
- Frequency Range: 1 to 6.25E7
- Form Factor: Bench top; Rack mount (optional feature); Handheld (optional feature); Computer Board
- Max Channels: 4
from Red Pitaya, d.o.o.
STEMlab 125-14 X-Channel System is designed for applications that require multi-channel RF signal acquisition and generation. It enables the user to stream analog and digital signals from/to the client's PC. X-Channel System consists of multiple STEMlab 125-14 devices that are modified and comes... [See More]
- Display Digits: 3 Digits; 4 Digits; 5 Digits; 6 Digits
- Frequency Range: 1 to 6.25E7
- Form Factor: Bench top; Rack mount (optional feature); Handheld (optional feature); Computer Board
- Max Channels: 4
from Red Pitaya, d.o.o.
STEMlab 125-14Z7020 Low Noise is based on a STEMlab 125-14 Z7020 board that is populated with additional linear analog power for analog power supplies to reduce RF inputs and outputs noise and consequently increase ENOB. [See More]
- Display Digits: 3 Digits; 4 Digits; 5 Digits; 6 Digits
- Frequency Range: 1 to 6.25E7
- Form Factor: Bench top; Rack mount (optional feature); Handheld (optional feature); Computer Board
- Max Channels: 4
from Red Pitaya, d.o.o.
STEMlab 125-14Z7020 Low Noise is based on a STEMlab 125-14 Z7020 board that is populated with additional linear analog power for analog power supplies to reduce RF inputs and outputs noise and consequently increase ENOB. [See More]
- Display Digits: 3 Digits; 4 Digits; 5 Digits; 6 Digits
- Frequency Range: 1 to 6.25E7
- Form Factor: Bench top; Rack mount (optional feature); Handheld (optional feature); Computer Board
- Max Channels: 4