There may be a few DX-ers around who, like me, have to live with a Loran C station in close proximity. MW DX is not always easy in such circumstances. And if you happen to own one of these wide-spectrum SDRs, like a Flex-Radio SDR-1000 or an RF Space SDR-14 or-IQ, you're asking for trouble. What I've seen of commercially available tools for removing/reducing Loran C noise have n
![](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhQdfR8aPdEEKLYRqiJKKNPn37VS2nvzK51y3fqHxObojRQtlvdfS5DQVJIEtNn47Jcx_F49-z_Z3K-WA8TKLdAfJ3Eai_iYHD6LkufMNCo7WubumVHw2esr6w5QN-ZSzeVSrXeqBU0ad4/s400/Stefan+notch.jpg)
ot impressed me.
So let me introduce my secret weapon the last solar cycle, the Stefan Wikander Ultra-Deep Loran C Notch Filter! Download the pdf file
here.
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