This video helps you build a budget SoftwareDefined Radio, all software free and opensource, with a single inexpensive component as the wideband radiofrequency front end, able to tune from 500 KHz to 1.7 GHz.

Included is a tutorial that explains how radio modulation schemes work CW, AM, SSB, FM and wide FM.

Also included are full instructions for a test transmitter written in three forms Python, Rust, and GnuRadio flowchart, all with source files, all free and opensource.

Here is a link to this project's support Web page: https://arachnoid.com/software_define...

Here is a link to my Morse code tutorial page: https://arachnoid.com/morse_code/

Keywords: SoftwareDefined Radio, SDR, SDR++, RTLSDR V4, HackRF One, Heathkit AR3

Index:

00:00 Introduction
02:05 Section I : SoftwareDefined Radio
02:23 SDR Basic Layout
02:36 Old Expensive Setup
03:07 New Economical Setup
03:47 SDR++ Program
04:04 Section II : A Little Theory
08:41 Section III : Radio Modes Survey
09:25 Radio Modes : CW
10:52 Radio Modes : SSB
12:13 Radio Modes : AM
13:22 Radio Modes : NFM
14:33 Radio Modes : WFM
15:42 Section IV : Reception Examples
16:06 WWV Time Standard Station
16:33 SSB Ham Radio
16:49 2 Meter NFM Ham Radio using Repeater
17:07 : AM ForeignLanguage Broadcasts
18:14 UHF Electronic Devices Frequency
18:32 UHF Car Key Fob Frequency
18:53 UHF ZWave Home Automation Frequency
19:10 Family Radio Secvice (FRS) Band
19:53 VHF Air Band : Pilot / Tower Communication
20:44 Section V : Signal Generator Description
21:03 Hardware Configuration
21:20 GnuRadio Signal Generator Flowchart
21:37 Math Equations for all Modulation Modes
21:58 Feynman Math Quote
22:18 Linux & Windows Brief Setup Instructions
22:26 Windows 11 Advertisement Complaint
23:02 Windows 10/11 Pipe Failure Analysis
23:43 Section VI : Reflections
23:48 Crystal Radio
23:55 Apricot Picker Anecdote
23:59 Heathkit AR3 Kit Purchase
25:26 Heathkit AR3 Schematic Diagram Analysis
26:09 Closing Remarks
27:02 End