Return-Path: Received: from post.thorcom.com (post.thorcom.com [195.171.43.25]) by mtain-ma05.r1000.mx.aol.com (Internet Inbound) with ESMTP id DDF0338000098; Sat, 2 Feb 2013 14:43:30 -0500 (EST) Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1U1iy8-00018G-7Q for rs_out_1@blacksheep.org; Sat, 02 Feb 2013 19:41:44 +0000 Received: from [195.171.43.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1U1iy7-000187-Os for rsgb_lf_group@blacksheep.org; Sat, 02 Feb 2013 19:41:43 +0000 Received: from blu0-omc1-s23.blu0.hotmail.com ([65.55.116.34]) by relay1.thorcom.net with esmtp (Exim 4.77) (envelope-from ) id 1U1iy6-0006BG-1D for rsgb_lf_group@blacksheep.org; Sat, 02 Feb 2013 19:41:42 +0000 Received: from BLU153-W19 ([65.55.116.9]) by blu0-omc1-s23.blu0.hotmail.com with Microsoft SMTPSVC(6.0.3790.4675); Sat, 2 Feb 2013 11:41:20 -0800 X-EIP: [BeQXPGj7uGqOpEl0h8Srlzxhm336caZo] X-Originating-Email: [hellozerohellozero@hotmail.com] Message-ID: From: Laurence KL1 X To: "rsgb_lf_group@blacksheep.org" Date: Sat, 2 Feb 2013 10:41:19 -0900 Importance: Normal In-Reply-To: <510D68A1.6070608@freenet.de> References: ,<7F4CF64248DB4E6184E59688EA3B5435@Extensa> ,<510D68A1.6070608@freenet.de> MIME-Version: 1.0 X-OriginalArrivalTime: 02 Feb 2013 19:41:20.0120 (UTC) FILETIME=[463BFF80:01CE017D] X-Spam-Score: 0.6 (/) X-Spam-Report: Spam detection software, running on the system "relay1.thorcom.net", has identified this incoming email as possible spam. 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: Thanks Wolf - Ive been itching to ask that question for some time! Laurence > Date: Sat, 2 Feb 2013 20:27:29 +0100 > From: dl4yhf@freenet.de > To: rsgb_lf_group@blacksheep.org > Subject: Re: LF: 0.003 Hz drift DJ8WX at 8970,022 Hz > > Hi Laurence and all, > > You asked: > > > > Is it better to have a longer FFT input size and smaller decimate or > say smaller input size and larger decimate :-) ? > < > > It doesn't matter for this application. Important is only the resulting > FFT bin width, which is displayed on the 'FFT Settings' panel. > Longer FFT and less decimation has the advantage of covering a larger > bandwidth (to pan around), but since we know Uwe's frequency quite > accurately that's not so important. On PCs with less than a gagabyte of > RAM, or if many other programs need to run simultaneously, keep the FFT > size below 512k . > > > 73, > Wolf DL4YHF . > > (back from the club station; quite heavy QRM/QRN here so I decided to > call it day on MF) > [...] Content analysis details: (0.6 points, 5.0 required) pts rule name description ---- ---------------------- -------------------------------------------------- -0.0 RCVD_IN_DNSWL_NONE RBL: Sender listed at http://www.dnswl.org/, no trust [65.55.116.34 listed in list.dnswl.org] 0.0 FREEMAIL_FROM Sender email is commonly abused enduser mail provider (hellozerohellozero[at]hotmail.com) -0.0 SPF_PASS SPF: sender matches SPF record -0.4 RP_MATCHES_RCVD Envelope sender domain matches handover relay domain 0.0 HTML_MESSAGE BODY: HTML included in message 1.0 FREEMAIL_REPLY From and body contain different freemails X-Scan-Signature: 4d97240a623a26620214cd27feaa9f71 Content-Type: multipart/alternative; boundary="_2415be46-51d8-4edd-aab6-5096e5e95b4c_" Subject: RE: LF: 0.003 Hz drift DJ8WX at 8970,022 Hz 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=FORGED_HOTMAIL_RCVD, HTML_MESSAGE,TO_ADDRESS_EQ_REAL 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 x-aol-global-disposition: G x-aol-sid: 3039ac1d600d510d6c6262c2 X-AOL-IP: 195.171.43.25 X-AOL-SPF: domain : blacksheep.org SPF : none --_2415be46-51d8-4edd-aab6-5096e5e95b4c_ Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Thanks Wolf - Ive been itching to ask that question for some time! Laurence > Date: Sat=2C 2 Feb 2013 20:27:29 +0100 > From: dl4yhf@freenet.de > To: rsgb_lf_group@blacksheep.org > Subject: Re: LF: 0.003 Hz drift DJ8WX at 8970=2C022 Hz >=20 > Hi Laurence and all=2C >=20 > You asked: >=20 > > > Is it better to have a longer FFT input size and smaller decimate or=20 > say smaller input size and larger decimate :-) ? > < >=20 > It doesn't matter for this application. Important is only the resulting=20 > FFT bin width=2C which is displayed on the 'FFT Settings' panel. > Longer FFT and less decimation has the advantage of covering a larger=20 > bandwidth (to pan around)=2C but since we know Uwe's frequency quite=20 > accurately that's not so important. On PCs with less than a gagabyte of=20 > RAM=2C or if many other programs need to run simultaneously=2C keep the F= FT=20 > size below 512k . >=20 >=20 > 73=2C > Wolf DL4YHF . >=20 > (back from the club station=3B quite heavy QRM/QRN here so I decided to=20 > call it day on MF) >=20 = --_2415be46-51d8-4edd-aab6-5096e5e95b4c_ Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable
Thanks Wolf - Ive been itching to ask that question for some time!

L= aurence

>=3B Date: Sat= =2C 2 Feb 2013 20:27:29 +0100
>=3B From: dl4yhf@freenet.de
>=3B T= o: rsgb_lf_group@blacksheep.org
>=3B Subject: Re: LF: 0.003 Hz drift D= J8WX at 8970=2C022 Hz
>=3B
>=3B Hi Laurence and all=2C
>=3B=
>=3B You asked:
>=3B
>=3B >=3B
>=3B Is it bette= r to have a longer FFT input size and smaller decimate or
>=3B say sm= aller input size and larger decimate :-) ?
>=3B <=3B
>=3B
&= gt=3B It doesn't matter for this application. Important is only the resulti= ng
>=3B FFT bin width=2C which is displayed on the 'FFT Settings' pan= el.
>=3B Longer FFT and less decimation has the advantage of covering = a larger
>=3B bandwidth (to pan around)=2C but since we know Uwe's fr= equency quite
>=3B accurately that's not so important. On PCs with le= ss than a gagabyte of
>=3B RAM=2C or if many other programs need to r= un simultaneously=2C keep the FFT
>=3B size below 512k .
>=3B >=3B
>=3B 73=2C
>=3B Wolf DL4YHF .
>=3B
>=3B (b= ack from the club station=3B quite heavy QRM/QRN here so I decided to
&= gt=3B call it day on MF)
>=3B
= --_2415be46-51d8-4edd-aab6-5096e5e95b4c_--