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LF: Anyone good with Elsie?

To: "[email protected]" <[email protected]>
Subject: LF: Anyone good with Elsie?
From: Chris Wilson <[email protected]>
Date: Thu, 23 Aug 2018 12:08:01 +0100
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Hello  LF'ers

Is anyone able and willing to advise on my band pass RX filter design
please? I have made a band pass filter for 137kHz reception and
checked it with my SDR in real time. It is shifted a little high and I
am wondering what I need to change to pull it a bit lower? Any
practical advice or component values welcome. Adjustability would be
nice! Thanks

Filter design is at http://www.chriswilson.tv/lf-circuit.jpg

Real world results at : http://www.chriswilson.tv/passband.jpg

ELSIE plot at : http://www.chriswilson.tv/lf-plot.jpg
-- 
Best regards,
 Chris                          mailto:[email protected]


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