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[82.70.254.222]) by smtp.gmail.com with ESMTPSA id k35-v6sm6639848wrc.14.2018.08.23.05.38.08 (version=TLS1 cipher=AES128-SHA bits=128/128); Thu, 23 Aug 2018 05:38:08 -0700 (PDT) Date: Thu, 23 Aug 2018 13:38:07 +0100 From: Chris Wilson X-Priority: 3 (Normal) Message-ID: <193866059.20180823133807@gmail.com> To: DK7FC In-Reply-To: <5B7EA826.5000906@posteo.de> References: <1613303827.20180823120801@gmail.com> <5B7E9BB0.7000307@posteo.de> <5B7EA826.5000906@posteo.de> MIME-Version: 1.0 X-Spam-Score: 0.0 (/) X-Spam-Report: Spam detection software, running on the system "relay1.thorcom.net", has NOT identified this incoming email as spam. The original message has been attached to this so you can view it or label similar future email. If you have any questions, see @@CONTACT_ADDRESS@@ for details. Content preview: 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 :) [...] Content analysis details: (0.0 points, 5.0 required) pts rule name description ---- ---------------------- -------------------------------------------------- -0.0 RCVD_IN_DNSWL_NONE RBL: Sender listed at http://www.dnswl.org/, no trust [2a00:1450:4864:20:0:0:0:42b listed in] [list.dnswl.org] 0.0 FREEMAIL_FROM Sender email is commonly abused enduser mail provider (dead.fets[at]gmail.com) -0.0 SPF_PASS SPF: sender matches SPF record 0.0 T_DKIM_INVALID DKIM-Signature header exists but is not valid X-Scan-Signature: c1f72e5acb1277e013f90c915ad7ad68 Subject: Re: LF: Anyone good with Elsie? Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit X-Spam-Checker-Version: SpamAssassin 2.63 (2004-01-11) on post.thorcom.com X-Spam-Level: X-Spam-Status: No, hits=0.8 required=5.0 tests=PRIORITY_NO_NAME autolearn=no version=2.63 X-SA-Exim-Scanned: Yes Sender: owner-rsgb_lf_group@blacksheep.org Precedence: bulk Reply-To: rsgb_lf_group@blacksheep.org X-Listname: rsgb_lf_group X-SA-Exim-Rcpt-To: rs_out_1@blacksheep.org X-SA-Exim-Scanned: No; SAEximRunCond expanded to false 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:dead.fets@gmail.com