Beyond line of sight :   a history of VHF propagation from the pages of QST /  
edited by emil Pocock. 
 - Newington :   The American Radio Relay League,   1992. 
 - 224 p. 
<br/><br/> Tropospheric refraction - Sporadic-E - Aurora and Auroral-E - Meteor scatter - The other scatter modes - F-layer propagation - Transequatorial propagation - Earth-moon-earth. 
<br/><br/><label>ISBN: </label>0872594025 
<br/><br/><label>Subjects--Topical Terms: </label><br/>ONDAS DE RADIO
<br/><br/><label>Universal Decimal Class. No.: </label>621.396.67