Decode and read text message
communications being sent
over shortwave amateur
radio frequencies

Although you may not be aware of it,
the space that surrounds you is filled with
bursts of text messages speeding to their
destinations. No, we’re not referring to
messages produced by teenagers on their
cell phones trying to link up at the mall,
but rather messages on the shortwave
bands that may contain emergency
communications, announce a special
event, or merely consist of friendly
greetings exchanged between amateur
radio operators located on two different
continents. Read on to find out how to
construct a simple receiver that allows
you to “read the mail” using your
personal computer.