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| To: | [email protected] |
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| Subject: | Re: LF: Anyone good with Elsie? |
| From: | DK7FC <[email protected]> |
| Date: | Thu, 23 Aug 2018 13:34:08 +0200 |
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Hi Chris,Add some C across the other Cs. If you have 2 nF currently and the frequency is at 150 kHz, then try to add 200 pF. Just try it out, forget the simulations. 73, Stefan Am 23.08.2018 13:08, schrieb Chris Wilson: 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 |
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