Receive filters are the single most powerful tool for pulling a signal out of a noisy band - but only if you understand what they are actually doing. This episode covers the fundamentals of digital filters, passband width and shape, high and low cut controls, notch filters, and the audio peaking filter for CW.

Below the Noise Floor — Episode 10: "Receive Filters Explained"

<p>&nbsp;Below the Noise Floor is a self-education project turned podcast. One licensed amateur radio operator learning HF radio and AetherSDR from the ground up - the bands, the waterfall, the voice chain, the digital modes, the antennas - and sharing the process. These episodes are mostly AI-generated content built around real curiosity and real equipment. If you are new to HF or new to software-defined radio and want something that starts from zero and builds methodically, this might be exactly what you were looking for.&nbsp;</p>

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 Below the Noise Floor is a self-education project turned podcast. One licensed amateur radio operator learning HF radio and AetherSDR from the ground up - the bands, the waterfall, the voice chain, the digital modes, the antennas - and sharing the process. These episodes are mostly AI-generated content built around real curiosity and real equipment. If you are new to HF or new to software-defined radio and want something that starts from zero and builds methodically, this might be exactly what you were looking for. 

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Below the Noise Floor — Episode 10: "Receive Filters Explained"

Below the Noise Floor — Episode 10: "Receive Filters Explained"