Skip to Main Content
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
CHAPTER
21
The Superheterodyne Principle
21.1
A
Difficult Problem Solved
Fortunately
it is
possible
to
combine
the
advantages
of
fixed-tuned
selectivity, using
a
sufficient number
of
tuning circuits carefully
adjusted once
and for all in the
factory, with
the
ability
to
receive
over wide ranges
of
frequency.
It is
done
in the
great majority
of
present-day receivers, under
the
name
of
supersonic
heterodyne—usually abbreviated
to
superheterodyne
or
just
'superhet'.
A
device called
a
frequency-changer shifts
the
carrier
wave received from
any
desired station, together with
its
sidebands,
to whatever fixed frequency
has
been chosen
for the
selectiv ...
Become an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
and much more.
Start your free trial

You might also like

RF and Microwave Wireless Systems

RF and Microwave Wireless Systems

Kai Chang

Publisher Resources

ISBN: 9781483105574