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[82.70.254.222]) by smtp.gmail.com with ESMTPSA id u194sm2147833wmd.8.2018.01.26.10.11.10 (version=TLS1 cipher=AES128-SHA bits=128/128); Fri, 26 Jan 2018 10:11:11 -0800 (PST) Date: Fri, 26 Jan 2018 18:11:09 +0000 From: Chris Wilson X-Priority: 3 (Normal) Message-ID: <1345450810.20180126181109@gmail.com> To: N1BUG CC: dead.fets@gmail.com In-Reply-To: References: <1371247928.20180126134524@gmail.com> <1397698645.2553258.1516983835152.JavaMail.open-xchange@oxbe7.tb.ukmail.iss.as9143.net> 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 the administrator of that system for details. Content preview: Thanks for the replies! Should the `scope show the issue? I have access to a very good SA but am always loathe to use it in case I blow the front end, as at this low a frequency it needs the "absolutely no DC" input port, and DC blocks that I have are iffy this low. Thanks, after dinner I will look at it again with the `scope for a start, now you have all given me some great advice as to possible causes. After I have taken some more measurements with the `scope I may change the crystal and then the divider. Andy is undoubtedly right in that a buffer trigger may be the ideal, but I am not competent to design a circuit with correct values and KISS seems appealing until simpler fixes are checked out ;) [...] Content analysis details: (0.0 points, 5.0 required) pts rule name description ---- ---------------------- -------------------------------------------------- 0.0 FREEMAIL_FROM Sender email is commonly abused enduser mail provider (dead.fets[at]gmail.com) 0.0 T_DKIM_INVALID DKIM-Signature header exists but is not valid X-Scan-Signature: 87966b345956c8ef3389b993f6a18f4e Subject: Re: LF: Softrock RX divider IC problem, unexpected frequency out 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 Thanks for the replies! Should the `scope show the issue? I have access to a very good SA but am always loathe to use it in case I blow the front end, as at this low a frequency it needs the "absolutely no DC" input port, and DC blocks that I have are iffy this low. Thanks, after dinner I will look at it again with the `scope for a start, now you have all given me some great advice as to possible causes. After I have taken some more measurements with the `scope I may change the crystal and then the divider. Andy is undoubtedly right in that a buffer trigger may be the ideal, but I am not competent to design a circuit with correct values and KISS seems appealing until simpler fixes are checked out ;) -- Best regards, Chris mailto:dead.fets@gmail.com