Getting started with FPGAs
Field programmable gate arrays (FPGAs) are a special type of integrated circuit that consists of logic gates and memory blocks that can be configured with code to implement digital computations. …
An RF Signal Measurement Tool to complement your Software-defined Radio
Most software-defined radios on the market today are designed for communication applications. When receiving signals, they are used primarily for signal processing including demodulation and decoding. SDRs are not designed …
The Best Electromagnetic Field (EMF) Detectors for 2021
Updated January 2021 How Does an EMF Detector Work and What Are The Applications? An EMF detector measures magnetic fields, electric fields and RF radiation through sensors. An EMF detector …
What is IP3?
When two RF signals are input to an RF component such as an LNA or a Mixer, it results in the creation of other mathematically-related, spurious signals. This is a …
Oil Tankers Going Nowhere?
We’ve been reading news of oil tankers stranded in various places around the world on account of the Coronavirus pandemic which has been affecting the price of oil. The most …
So… How Do I Get Started With Radio Frequency (RF)?
Exploring the different options available for learning about RF Almost all the 7.5 Billion people around the world rely on RF in some way, whether it be through their cell …
Best Antennas for ADS-B Reception
Automatic dependent surveillance–broadcast (ADS-B) is wireless technology that enables aircraft to determine their position via satellite and periodically broadcast this location information. An ADS-B receiver can be used to decode this broadcast …
What is a DC Block?
A DC block is a passive device that’s used to prevent DC from crossing across the points between which it is connected while allowing the flow of RF signals. It …
How to fix a broken HackRF
One of the most common reported issues is a significant drop in signal level both in the receiver as well as the transmitter of the HackRF. In this post we …
Chaining Software-defined Radio accessories with a Bias Tee
Introduction The use of a bias tee was discussed in a couple of blog posts previously. The primary use of a bias tee in an SDR is to power a …