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The original message has been attached to this so you can view it (if it isn't spam) or label similar future email. If you have any questions, see the administrator of that system for details. Content preview: Hello Alex, For the purpose of the grabber, you don't need to activate the 'Resample' option. So you can save some CPU power. The option 'synchronized resample' is used (for example) when the audio output is sent through a network to a remote server, which processes processes various streams from different receivers. When all streams arriving at the server use exactly the same sampling rate, signal processing is easier. [...] Content analysis details: (1.0 points, 5.0 required) pts rule name description ---- ---------------------- -------------------------------------------------- -0.0 RCVD_IN_DNSWL_NONE RBL: Sender listed at http://www.dnswl.org/, no trust [195.4.92.93 listed in list.dnswl.org] 0.0 FREEMAIL_FROM Sender email is commonly abused enduser mail provider (dl4yhf[at]freenet.de) -0.0 T_RP_MATCHES_RCVD Envelope sender domain matches handover relay domain 1.0 FREEMAIL_REPLY From and body contain different freemails X-Scan-Signature: 0a4643e586472c13187d293ec5d096c2 Subject: LF: Re: [rsgb_lf_group] VLF grabber settings Content-Type: text/plain; charset=UTF-8; format=flowed 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=0.0 required=5.0 tests=none 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 Alex, For the purpose of the grabber, you don't need to activate the 'Resample' option. So you can save some CPU power. The option 'synchronized resample' is used (for example) when the audio output is sent through a network to a remote server, which processes processes various streams from different receivers. When all streams arriving at the server use exactly the same sampling rate, signal processing is easier. For the ultra narrow band spectrum display it is not necessary, because the drifting soundcard sampling rate is compensated by adjusting the software-based local oscillator. All the best, Wolf DL4YHF . Am 02.07.2014 07:44, schrieb Alex K rn3aus@mail.ru [rsgb_lf_group]: > Hello LF\VLF! > I prepare now summer VLF-grabber for 8270 Hz band (in KO85HA): SingleLoop-ant abt 3.5 meters diameter + LNA (modified OK2BVG design) + bandpass filter 4-15 kHz + EeePC with SpectrumLab (dfcw-6000?) > I have some questions about Sample Rate Calibration. On the picture there are my settings. Sample Rate changes slowly during the day within +-1 Hz. Whether "Sync'd Resample - all input channels" need to be enabled? > Any recommendations are welcomed. > > Some TX activity for Dreamers band at summer time? > > (full band view screenshot: pretest Loop diameter=1.8 meter)