Solid State Shortwave Receivers For Beginners - The Listeners Guide

CHAPTER 5
Amateur Band Receiver
On the amateur bands ordinary A.M. signals are almost nonexistant
these days. The place of A.M. has been taken by single sideband
(S.S.B.) which offers several advantages oven A.M. in the context of
amateur band communications. Before describing the circuit and
operation of a receiver for reception of C.W. and S.S.B. on the 80
Metre amateur band, some background information on S.S.B. will be
given.
It should perhaps be stressed that it is by no means essential to
have an understanding of S.S.B. before commencing amateur band
reception, but is extremely helpful to have at least a basic understanding
of S.S.B. There is much more to tuning in an S.S.B. signal than
there is to tuning to an A.M. one. Unless the tuning is carried out
accurately, the audio signal that is produced will be completely
uncomprehendable. Without even a basic understanding of S.S.B.
there is a certain hit and miss aspect of amateur bands reception.
Reading the following section should help to remove this aspect of
things.
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