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| To: | DK7FC <[email protected]> |
|---|---|
| Subject: | Re: LF: Anyone good with Elsie? |
| From: | Chris Wilson <[email protected]> |
| Date: | Thu, 23 Aug 2018 13:38:07 +0100 |
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| Sender: | [email protected] |
Hello DK7FC Stefan, No worries, I will try this tonight, thank you. My method of testing is a wide band commercial noise source and two series wide band amps to up the level to something useable by my SDR, then look at the BPF filter action on the display in HDSDR. I have a spectrum analyser but am not very good with it, given the comfort I have using HDSDR I am probably better keeping it simple! Sound OK? Cheers and thanks again :) Thursday, August 23, 2018, 1:27:18 PM, you wrote: > Ehm sorry, rather add 400 pF. > I just calculated (150/137)^2 ~ 1.2, i.e. you need 1.2 times more C, or > 2.4 nF. > 73, Stefan -- Best regards, Chris mailto:[email protected] |
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