Return-Path: Received: from post.thorcom.com (post.thorcom.com [195.171.43.25]) by mtain-da05.r1000.mx.aol.com (Internet Inbound) with ESMTP id D9255380000DC; Fri, 9 Mar 2012 17:48:25 -0500 (EST) Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1S68aw-00005K-KT for rs_out_1@blacksheep.org; Fri, 09 Mar 2012 22:47:30 +0000 Received: from [195.171.43.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1S68aw-00005B-67 for rsgb_lf_group@blacksheep.org; Fri, 09 Mar 2012 22:47:30 +0000 Received: from relay2.uni-heidelberg.de ([129.206.210.211]) by relay1.thorcom.net with esmtp (Exim 4.63) (envelope-from ) id 1S68av-00076g-2l for rsgb_lf_group@blacksheep.org; Fri, 09 Mar 2012 22:47:30 +0000 Received: from freitag.iup.uni-heidelberg.de (freitag.iup.uni-heidelberg.de [129.206.29.204]) by relay2.uni-heidelberg.de (8.13.8/8.13.8) with ESMTP id q29MlSZw030273 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NO) for ; Fri, 9 Mar 2012 23:47:28 +0100 Received: from [129.206.22.206] (pc206.iup.uni-heidelberg.de [129.206.22.206]) by freitag.iup.uni-heidelberg.de (8.12.11.20060308/8.11.2) with ESMTP id q29MlSrl013643 for ; Fri, 9 Mar 2012 23:47:28 +0100 Message-ID: <4F5A8843.2060604@iup.uni-heidelberg.de> Date: Fri, 09 Mar 2012 23:46:27 +0100 From: =?UTF-8?B?U3RlZmFuIFNjaMOkZmVy?= User-Agent: Mozilla/5.0 (Windows; U; Windows NT 6.1; de; rv:1.9.1.8) Gecko/20100227 Thunderbird/3.0.3 MIME-Version: 1.0 To: rsgb_lf_group@blacksheep.org References: <1331322144.5606.6.camel@gerhard-desktop-acer> <777AC48E9D274212A53CF37C372394A5@Extensa> <1331325786.5606.12.camel@gerhard-desktop-acer> <4F5A8064.7030001@iup.uni-heidelberg.de> In-Reply-To: X-MIME-Autoconverted: from 8bit to quoted-printable by relay2.uni-heidelberg.de id q29MlSZw030273 X-Spam-Score: 1.4 (+) X-Spam-Report: autolearn=disabled,RATWARE_GECKO_BUILD=1.426 Subject: Re: LF: Re: VLF transmission 10.3.2012 Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: quoted-printable 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 x-aol-global-disposition: G X-AOL-SCOLL-SCORE: 0:2:467562368:93952408 X-AOL-SCOLL-URL_COUNT: 0 x-aol-sid: 3039ac1d404d4f5a88b96183 X-AOL-IP: 195.171.43.25 X-AOL-SPF: domain : blacksheep.org SPF : none Hi Peter, Try to active the samplerate detector. Choose the MSK demodulator=20 algorithm and try to lock on GBZ 19.58 kHz. This transmitter is a fine=20 reference. The German transmitter makes a coffee break each morning and=20 may not be optimal for that. Note that it takes quite a long time in these very slow modes until the=20 first pixel appears on the screen. Also you may run different instances of SL simultaneously, to check=20 different things... It could be helpful to resonate your antenna to 9 kHz with a low Q fixed=20 inductor, 1 mH or so, to reduce the out of band signals. 73, Stefan/DK7FC Am 09.03.2012 23:35, schrieb PA1SDB, Peter: > O.K. Stefan, > I did finetune the Spectrum lab setting a bit. > I have no reference.... > Antenna is just a 30 mb dipole direct into the soundcard. > Well... perhaps I'm a bit to optimistic... > Let's see what happens. > > Best 73's, Peter - PA1SDB > http://home.deds.nl/~knol/ > http://home.deds.nl/~knol/dream.jpg > > > > > > > ----- Original Message ----- From: "Stefan Sch=C3=A4fer"=20 > > To: > Sent: Friday, March 09, 2012 10:12 PM > Subject: Re: LF: Re: VLF transmission 10.3.2012 > > >> Hi Peter, >> >> Interesting. What is your setup for VLF? >> I think if you plan to see Gerhard tomorrow you must at least choose=20 >> a FFT bin width below 1 mHz and 1 pixel per FFT bin. Also it is=20 >> essential to be locked to a refernece. >> >> A long story and not so easy to tell in 2 sentences :-) >> >> 73, GL, Stefan >> >> Am 09.03.2012 23:06, schrieb PA1SDB, Peter: >>> O.K. Gerhard and Stefan, >>> It's clear now. >>> I'm new here and learing day by day :-) >>> 73's, and succes. >>> >>> BTW: RX is QRV here... >>> http://home.deds.nl/~knol/dream.jpg >>> >>> Peter, PA1SDB >>> >>> >>> >>> >>> ----- Original Message ----- From: "Gerhard Hickl"=20 >>> >>> To: >>> Sent: Friday, March 09, 2012 8:43 PM >>> Subject: Re: LF: Re: VLF transmission 10.3.2012 >>> >>> >>>> Peter! >>>> >>>> Never mind! >>>> >>>> As Stefan has already explained, "VLF" in this context means lower=20 >>>> than >>>> 9khz. I will not tell the exact QRG but it will be very close to 897= 0, >>>> of course. Some mHz below or above. >>>> >>>> 73 >>>> OE3GHB >>>> Gerhard >>>> >>>> >>>> >>>> >>>> >>>> Am Freitag, den 09.03.2012, 19:57 +0000 schrieb PA1SDB, Peter: >>>>> Sorry, but what frequency ? >>>>> 9, 137, 500 Khz ? >>>>> >>>>> >>>>> ----- Original Message ----- From: "Gerhard Hickl"=20 >>>>> >>>>> To: >>>>> Sent: Friday, March 09, 2012 7:42 PM >>>>> Subject: LF: VLF transmission 10.3.2012 >>>>> >>>>> >>>>> > Dear group! >>>>> > >>>>> > The weather forecast for tomorrow looks promising. Only weak=20 >>>>> wind to >>>>> > expect here. >>>>> > >>>>> > This gives me another chance to transmit on VLF tomorrow. If >>>>> everything >>>>> > goes well, I will start around 800z. >>>>> > >>>>> > I know this another short announcement but until about two hours >>>>> ago it >>>>> > was unclear if I have to work tomorrow. Luckily I don't have=20 >>>>> to..... >>>>> > >>>>> > 73 >>>>> > OE3GHB >>>>> > Gerhard >>>>> > >>>>> > >>>>> > >>>>> > >>>>> >>>> >>>> >>>> >>> >> >