A look at a simple superhet receiver designed for CW reception. Describes each stage and demonstrates the homebrew crystal filter in operation. A 7 MHz receiver is shown but additional information on how this may be adapted to provide 14 MHz coverage is given as well.
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“I have been alerted by several hundred emails about the launch of the new Baofeng DM-5R (I am the President of the Toronto Baofeng users group – TBUG) claiming a $70 us price and dual band capability. Baofeng China is not returning t... Read more