AM/cw 12-meter band transmitter

Posted on Oct 29, 2012

CW is the simplest form of modulation. The output of the transmitter is switched on and off, typically to form the characters of the Morse code. CW transmitters are simple and inexpensive, and the transmitted CW signal doesn`t occupy much frequency space (usually less than 500 Hz). However, the CW signals will be difficult to hear on a normal receiver; you`ll just hear the faint quieting of the background noise as the CW signals are transmitted.

AM/cw 12-meter band transmitter
Click here to download the full size of the above Circuit.

This was the first type of modulation used for communicating signals from one point to another and is still the simplest to understand. A radio frequency current has a constant amplitude in absence of modulation and this constant amplitude RF carries no

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