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Foundations of Wireless and Electronics, 10th Edition
book

Foundations of Wireless and Electronics, 10th Edition

by M. G. Scroggie, S. W. Amos
October 2013
Intermediate to advanced content levelIntermediate to advanced
570 pages
27h 46m
English
Newnes
Content preview from Foundations of Wireless and Electronics, 10th Edition
288
the direct line of View' from the sending antenna. So if the cheapness is
to be maintained the range is usually restricted to a few kilometres. It
can be increased to one or even two hundred kilometres by setting up
the antennas on high towers or mountains, and to thousands of
kilometres by using man-made satellites, for re-transmission, as in
Fig. 17.12. The most useful type of satellite for this purpose is in
orbit at such a distance (35 860 kilometres) that its period of
revolution around the earth is 24 hours, so that if established in the
same direction as the earth's daily rotation the satellite maintains a
constant station relativ ...
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Publisher Resources

ISBN: 9781483105574