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I've just completed a new project and have submitted a new article to QST for publication. It is a single band HF receiver that has DDS frequency control, a color display and a crystal filter that can be adjusted for bandwidth from the front panel to optimize detection of the type of signal received. The pc board measures about 4" by 6". I will add updates here. Circuit boards and partial kits will be available.
This receiver has been designed to be a stand-alone receiver or the receiver section of a transceiver.