Radio Mobile - RF propagation simulation software - Radio Link
Getting Started With Software Defined Radio (SDR) - Make:
Introduction to Radio Frequency Design (Radio Amateur's Library, Publication No. 191.): Wes H. Hayward: 9780872594920: Amazon.com: Books
Clear Waves (Windows) — RF Spectrum Analyzer & Frequency Coordination
Design software - RF Blockset™ - The MathWorks - simulation / for radio frequency system
JRX: Virtual Ham Radio
Gqrx SDR – Open source software defined radio by Alexandru Csete OZ9AEC
Software offers new way to listen for signals from the stars
Software Defined Radio Market Size, Share & Trends Analysis Report by Type, by Component, by Frequency Band, by Platform, by End Use, by Region, and Segment Forecasts, 2020 - 2027
Petter Reinholdtsen: rtlsdr-scanner, software defined radio frequency scanner for Linux - nice free software