Let’s get started recording SmartSDR IQ Data with Audacity. This lets you convert the 24 bit Flex data stream down to 16 bits for use with the File Source in GNURadio. Read more
Tag: gnuradio
GNURadio Envelope Detector in Python
Here is a simple demonstration of using embedded Python to write a GNURadio AM Envelope Detector and explore its performance with various signals. Read more
GNURadio Embedded Python Block
Use a GNURadio Embedded Python Block to add your own processing blocks to GRC flow graphs. This tutorial and video will get you started. Read more
Creating Frequency Modulation in GNURadio
Let’s experiment with creating frequency modulation in GNURadio. Along the way, we will learn about deviation and voltage controlled oscillators. Read more
Creating Amplitude Modulation in GNURadio
Let’s have some fun creating amplitude modulation in GNURadio. This little experiment teaches the basics about modulation and is an easy way to learn more about GNURadio. Read more
GNURadio SCA Receiver – Signals within Signals
Take a look at my GNURadio SCA Receiver. It’s a neat way to use your RTL-SDR to explore hidden signals in your community. Read more
Decimation Improves SNR – Learning DSP
You can use GNURadio to demonstrate how decimation improves SNR. You get a 3 dB increase in signal to noise ratio every time you double the decimation rate. Read more
Goertzel Filter Tone Detector – Learning DSP
You can use GNURadio to examine the performance of a Goertzel filter tone detector. Its selectivity depends on the number of samples used. Read more
Ubuntu GNURadio with 2 USB Sticks
Run Ubuntu GNURadio with two USB sticks. This should work on almost any newer PC without installing anything on the hard drive. Read more
GNURadio SSB Receiver and Recording IQ Data
This article shows how to build a simple GNURadio SSB Receiver. We will use it to learn more about GNURadio and decode single sideband. Read more