Designing a Modular DC Receiver with Tunable Preselector for HF Listening
By AA7EEThis project details the development of a modular direct conversion (DC) receiver designed for experimental flexibility in amateur radio and HF signal listening. The mainframe integrates a diplexer, DBM, and AF amplifier, supporting interchangeable local oscillator and antenna filtering setups. A tunable passive HF preselector complements QRP Labs bandpass filters for enhanced signal reception. Utilizing a NanoVNA for precise tuning, the receiver achieves improved signal-to-noise ratios across amateur and non-amateur bands, making it a versatile platform for further RF experimentation.
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You will find this resource in just one category on our links directory. The title of the main category is Receivers and it deals mainly with Radio Receivers. The resource has been on our site since Saturday Nov 23 2024, and it has been viewed 36 times. So far no one has rated it yet. Be the first to rate it!
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