SDR 3 – Basic Digital SDR

This is the third course in our SDR Foundations series, where we learn how to apply our analog radio knowledge to build basic digital transmitters and receivers.

Course Information

Difficulty: Intermediate

Tracks: , ,

There’s nothing you need to know before starting the course. We’ll walk you through everything you need to get set up and running.

Course Instructors

Paul Clark Paul Clark Author
Author

Getting Started

Introduction
Software Installation
Where We Left Off

Improved GNU Radio Technique

Review of Basic SDR Receiver
Project 1 – AM to FM Conversion
Smart Parameterizing
The Frequency Xlating FIR Filter Block
Project 2 – FM Radio Upgrade
SDR Hardware in GNU Radio
Project 3 – FM Radio with Hardware Input

Intermediate RF Concepts

Terminology
EM and RF Spectra
Frequency Bands
Baseband
Bandwidth
Project 4 – Bandwidth

Modulation

Modulation Overview
Project 5 – Amplitude Modulation
Project 6 – Frequency Modulation
Project 7 – Phase Modulation
Waterfall Plots

SDR Hardware Considerations

Noise and SNR
Project 8 – SNR
SDR Hardware Specs
SDR Hardware Options
SDR Gain
The DC Spike
Project 9 – Dodging the Spike
Antennas
Your Computer and SDR
Noise Mitigation

Transmitting

Simulated Versus Hardware Transmitting
Project 10 – Simulated Transmission via File
Project 11 – Simulated Transmission via Combo Flowgraph
Project 12 – Simulated Transmission via ZMQ
Hardware Transmission Checklist
Resampling
Project 11 – Decimation
Project 12 – Decimation and Frequency
Project 13 – Fractional Resampling

Conclusion and a Challenge

Project 14 – Receiver Review
Project 15 – Haystack Exploration
Recap and Look Ahead

Leave a Reply

Your email address will not be published. Required fields are marked *

This site uses Akismet to reduce spam. Learn how your comment data is processed.