HIGH FREQUENCY TECHNIQUES
Publisher: JOHN WILEY AND SONS LTD
Published: 2004
Language: eng
ISBN-13: 9780471474814
First sentence: WIRELESS TELEGRAPHY-At a time when relations are strained between Spain and this country, nothing could be more welcome than a practical method of carrying on electrical communication between distant points on land, and between ships at sea, without any prearranged connection between the two points.