Previously, our interest was mainly listening to radio signals. Over the past fifteen years, though, we added watching radio signals in a big way. Read more
Series: Watching Radio Signals
We all enjoy watching and listening to radio signals on our SDR. Let’s find out that the spectrum and waterfall displays really show, and how they work.
Understanding SDR Spectrum Noise Floor
Let’s find out what the SDR spectrum noise floor means and where it comes from. And, we’ll do some math, too! Read more
SDR Spectrum Man-Made Noise is Everywhere
Your SDR spectrum man-made noise is a constant and distracting companion. Some call it noise, but it is really interference from nearby electronic devices and appliances. Read more
Watching Digital Radio Signals
If you enjoy looking at signals, you will love watching digital radio signals. Many of these exist across the radio spectrum, from long waves to microwaves. Read more
Spectrum Display Noise Floor – Shifting Sands
Did you ever wonder why the spectrum display noise floor changes when you adjust spectrum display width on your SDR? Keep reading for the answer. Read more
SDR Receiver Creates Numbers
Deep down, your SDR receiver creates numbers. Lots of them. Where do these numbers come from? What do they mean and how are they used? Read more
Watching Signal Amplitude – Why DFT Uses Windowing
Watching signal amplitude is easy on software defined radios. But accurate DFT displays need to be cleaned up with windowing. Here’s why and how. Read more
Multiple Receiver Monitoring with SDR
Multiple receiver monitoring is the new normal with software defined radio. Here is how your SDR accomplishes this magic. Read more
Radio Spectrum Watching Expectations
So, are you achieving your radio spectrum watching expectations? Let’s take a look at the details of display optimization.
Read more