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CW Filtering in HDSDR
audio / cw / interference / operating / pztips / shack / technical

Better CW and SSB Audio

Getting the best from your radio often requires you to read the jolly old manual (RTFM), or just twiddling the various knobs until the right thing happens.  One of the …

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Mains Filter
blog / construction / homebrew / interference / operating / pztips / shack / technical

EMC/RFI Mains Filter

Being able to pilfer from the Ham Goodies stock can be rather convenient at times – especially when it comes to wiring-up a new Shack and deciding that a “proper” …

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40m Bandpass Filter
blog / events / interference / operating / qrm / technical

We Have Filters!

A Bandpass filter is invaluable for club/group activities and the “sting” of their price can often be reduced via a “group buy” or a nice word with your local club. Back …

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