The Science of Radio

What's new in the second edition. A Note to Professors. Prologue. 1. Solution to an Old Problem. 2. Pre-Radio History of Radio Waves. 3. Antenna as Launchers and Interceptors of Electromagnetic Waves. 4. Early Radio. 5. Receiving Spark Transmitter Signals. 6. Mathematics of AM Sidebands. 7. First Continuous Waves and Heterodyne Concept. 8. Birth of Electronics. 9. Fourier Series and Their Physical Meaning. 10. Convergence in Energy of the Fourier Series. 11. Radio Spectrum of a Spark-Gap Transmitter. 12. Fourier Integral Theorem, and the Continuous Spectrum of a Non-Periodic Time Signal. 13. Physical Meaning of the Fourier Transform. 14. Impulse 'Functions in Time and Frequency. 15. Convolution Theorem, Frequency Shifts, and Causal Time Signals. 16. Multiplying by Squaring and Filtering. 17. Squaring and Multiplying with Matched Nonlinearities. 18. Multiplying by 'Sampling and Filtering'. 19 Synchronous Demodulation and Its Problems. 20. Analytic Signals and Single-Sideband Radio. 21 Denoument. Epilogue. Technical Appendices: Complex Exponentials. Linear Time-Invariant Systems. Two-Terminal Components, Kirchoff's Circuit Laws, etc. Thevenin's and Norton's Theorems. Resonance in Electrical Circuits. Differential and Operational Amplifiers. Order of Integration and Differentiating an Integral. Fourier Theorem. Hilbert Integral Transform. Table of Fourier Transforms. Last Words. Indexes