HF/DF (Huff Duff) - High Frequency Direction Finding
Ch1.The Invisible War Beneath the Waves
Ch2.Principles of Radio Direction Finding
Ch3.The Adcock Antenna and Technical Evolution
Ch4.Shore Stations and the Atlantic Network
Ch5.Shipborne Systems and Operational Deployment
Ch6.The U-Boat Hunting Campaign
Ch7.Countermeasures and Electronic Warfare
Ch8.Legacy and Modern Applications