How to measure 5G radiation
Electromagnetic Field (EMF) meters are used to measure RF radiation. With 5G deployments are growing worldwide, the obvious question is – which EMF meters are best suited for measuring 5G …
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Best RF Bug Detector in 2021
What is an RF bug detector? An RF or electronic bug is commonly used for acquiring secret information. A bug is a combination of a radio transmitter and a microphone …
Old TV disrupts broadband for 18 months
The BBC has an article today on how an old television was found to be the source of radio interference that caused an entire village to lose internet connectivity. Radio …
Best Shortwave Radio for 2021
Introduction Shortwave refers to radio communication using frequencies falling in the shortwave region of the electromagnetic spectrum, specifically from 1.5 MHz to 30 MHz. One of the main advantages of …
Take a course in Communications and SDR this Summer
Over at Stanford University, John Gill and Nicholas Broad have uploaded their foundation course on Analog and Digital Communication systems. This course covers the fundamental principles underlying the analysis, design, …
The Best Multimeter for your Lab in 2021
A multimeter is one of the most basic instruments for testing. You can use it to test DC voltages, resistor values and as well circuit continuity. At OneSDR we use …
Learning Basic Electronics
What’s the best way to learn about electronics? The internet presents us with a wide variety of free instructional material by way of YouTube videos, Blog posts, Tweets and Manufacturer’s …
Designing Radio Frequency RF Filters
As we discussed in this article, filters are a key building block used for eliminating signals that can interfere with the operation of Software-defined radio. An FM notch filter for …
What is Noise Figure?
The Noise figure of an RF component such as a low noise amplifier or a mixer is a measure of how much it increases the noise in a system that …
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. …