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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Judging by the outcome of two tests so far, the new Amateur Radio on the International Space Station (ARISS) Multipoint Telebridge Contact via Amateur Radio concept appears to be a winner. ARISS completed the second test of the new-style ra... Read more