Return-Path: Received: from mtain-ma06.r1000.mx.aol.com (mtain-ma06.r1000.mx.aol.com [172.29.96.14]) by air-dd05.mail.aol.com (v129.4) with ESMTP id MAILINDD053-865b4d19d9ed2c3; Tue, 28 Dec 2010 07:37:01 -0500 Received: from post.thorcom.com (post.thorcom.com [195.171.43.25]) by mtain-ma06.r1000.mx.aol.com (Internet Inbound) with ESMTP id D2CD3380001E2; Tue, 28 Dec 2010 07:36:52 -0500 (EST) Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1PXYmU-0006cu-4s for rs_out_1@blacksheep.org; Tue, 28 Dec 2010 12:35:58 +0000 Received: from [195.171.43.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1PXYmT-0006cl-I4 for rsgb_lf_group@blacksheep.org; Tue, 28 Dec 2010 12:35:57 +0000 Received: from relay2.uni-heidelberg.de ([129.206.210.211]) by relay1.thorcom.net with esmtp (Exim 4.63) (envelope-from ) id 1PXYmR-0008Pc-Nq for rsgb_lf_group@blacksheep.org; Tue, 28 Dec 2010 12:35:57 +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 oBSCZt0u007377 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NO) for ; Tue, 28 Dec 2010 13:35:55 +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 oBSCZtxM008610 for ; Tue, 28 Dec 2010 13:35:55 +0100 Message-ID: <4D19D8E6.1010606@iup.uni-heidelberg.de> Date: Tue, 28 Dec 2010 13:32:38 +0100 From: =?ISO-8859-1?Q?Stefan_Sch=E4fer?= 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: <77525.18216.qm@web28511.mail.ukl.yahoo.com> <470957.28626.qm@web28506.mail.ukl.yahoo.com> <727958.85140.qm@web28503.mail.ukl.yahoo.com> <4D18F93F.5070700@iup.uni-heidelberg.de> <002101cba625$77907df0$0401a8c0@xphd97xgq27nyf> <4D192F5D.3090609@iup.uni-heidelberg.de> <002101cba674$48e1dd10$0401a8c0@xphd97xgq27nyf> In-Reply-To: X-Spam-Score: 1.4 (+) X-Spam-Report: autolearn=disabled,HTML_MESSAGE=0.001,RATWARE_GECKO_BUILD=1.426 Subject: Re: LF: Re: M in 4X Content-Type: multipart/alternative; boundary="------------070808020402070106050502" 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=HTML_MESSAGE 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: 3039ac1d600e4d19d9e44bba X-AOL-IP: 195.171.43.25 X-AOL-SPF: domain : blacksheep.org SPF : none X-Mailer: Unknown (No Version) --------------070808020402070106050502 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: quoted-printable X-MIME-Autoconverted: from 8bit to quoted-printable by relay2.uni-heidelberg.de id oBSCZt0u007377 Hi Chris, Chris, it would be interesting to have a QRSS-3 and/or QRSS-10 window=20 although it is probably just for fun since most stations will be to weak= =20 in this mode. Anyway it is a little effort and no hardware changes are=20 needed on your side. It would be a big challenge to appear there and=20 maybe we will see a surprise there and can increase the LF activity :-)=20 But of course i agree that the first goal is to reduce the QRM and=20 optimise the efficiency. On my grabber there is still a lack of 3 dB i=20 am afraid, never mind ;-) Just do it how you want :-) Best 73 and good luck with the optimisations! Stefan/DK7FC Am 28.12.2010 11:14, schrieb Chris Gomoiu: > Hello Mal, Stefan, LF, > > I don't think the 136.320 line you see on my grabber is your signal=20 > Mal, it's there all the time so it has to be a spurious and a very=20 > stable one :-) > > My antenna is not yet optimized, I have made some tests with an active= =20 > probe and will install it this week. Looks like there will be an=20 > improvement in SNR and hope to lower the sporadic high QRM level I'm=20 > experiencing in my location by placing it further away from the=20 > offending source (still to be identified, it could be from the outside= =20 > mains wiring). > > If signals are strong enough I will eventually make available a faster= =20 > QRSS window. > > 73s > Chris 4X1RF > > > On Tue, Dec 28, 2010 at 11:47 AM, mal hamilton > wrote: > > Tnx Stefan > But it is difficult to cover all speeds and frequencies although the > majority use QRS3 on this band. The most popular frequency area is > around > 137.7 for inter EU qso acty daytime and evenings. > Your Grabber is working fb at present. I am able to see my signal > all day > long as well as evening time. There are currently a good many > stations/countries active on the band at present. > 73 HNY de mal/G3KEV > > ----- Original Message ----- > From: "Stefan Sch=E4fer" > > To: > > Sent: Tuesday, December 28, 2010 12:29 AM > Subject: Re: LF: Re: M in 4X > > > That's a good idea! I should try to convince him to add a QRSS-3 > window. :-) > > DK7FC > > Am 28.12.2010 01:23, schrieb mal hamilton: > > Unfortunately the grabber is running too slow for my QRS 3 on =20 > 136.320 > > but I can see the weak trace. > > g3kev > > > > ----- Original Message ----- > > From: "Stefan Sch=E4fer" > > > To: > > > Sent: Monday, December 27, 2010 8:38 PM > > Subject: LF: M in 4X > > > > > > > >> LF, > >> > >> M, is think Markus/DF6NM is very well received in Haifa at 4X1RF: > >> http://qsl.net/4x1rf/lf/lfgrabber.htm > >> > >> The 4X1RF grabber is very sensitive again, after some days of > local QRM, > >> it seems :-) > >> > >> Very nice and an interesting goal! > >> > >> Will other stations try to appear there as well, tonight? > >> > >> Has a US station been able to apperat there so far? :-) > >> > >> 73, Stefan/DK7FC > >> > >> > > > > > > --------------070808020402070106050502 Content-Type: text/html; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Hi Chris,

Chris, it would be interesting to have a QRSS-3 and/or QRSS-10 window although it is probably just for fun since most stations will be to weak in this mode. Anyway it is a little effort and no hardware changes are needed on your side. It would be a big challenge to appear there and maybe we will see a surprise there and can increase the LF activity :-) But of course i agree that the first goal is to reduce the QRM and optimise the efficiency. On my grabber there is still a lack of 3 dB i am afraid, never mind ;-)
Just do it how you want :-)

Best 73 and good luck with the optimisations!

Stefan/DK7FC


Am 28.12.2010 11:14, schrieb Chris Gomoiu:
Hello Mal, Stefan, LF,

I don't think the 136.320 line you see on my grabber is your signal Mal, it's there all the time so it has to be a spurious and a very stable one :-)

My antenna is not yet optimized, I have made some tests with an active probe and will install it this week. Looks like there will be an improvement in SNR and hope to lower the sporadic high QRM level I'm experiencing in my location by placing it further away from the offending source (still to be identified, it could be from the outside mains wiring).

If signals are strong enough I will eventually make available a faster QRSS window.

73s
Chris 4X1RF


On Tue, Dec 28, 2010 at 11:47 AM, mal hamilton <g3kevmal@talktalk.net> wrote:
Tnx Stefan
But it is difficult to cover all speeds and frequencies although the
majority use QRS3 on this band. The most popular frequency area is around
137.7 for inter EU qso acty daytime and evenings.
Your Grabber is working fb at present. I am able to see my signal all day
long as well as evening time. There are currently a good many
stations/countries  active on the band at present.
73 HNY de mal/G3KEV

----- Original Message -----
From: "Stefan Schäfer" <schaefer@iup.uni-heidelberg.de>
To: <rsgb_lf_group@blacksheep.org>
Sent: Tuesday, December 28, 2010 12:29 AM
Subject: Re: LF: Re: M in 4X


That's a good idea! I should try to convince him to add a QRSS-3 window. :-)

DK7FC

Am 28.12.2010 01:23, schrieb mal hamilton:
> Unfortunately the grabber is running too slow for my QRS 3 on     136.320
> but I can see the weak trace.
> g3kev
>
> ----- Original Message -----
> From: "Stefan Schäfer"<schaefer@iup.uni-heidelberg.de>
> To:<rsgb_lf_group@blacksheep.org>
> Sent: Monday, December 27, 2010 8:38 PM
> Subject: LF: M in 4X
>
>
>
>> LF,
>>
>> M, is think Markus/DF6NM is very well received in Haifa at 4X1RF:
>> http://qsl.net/4x1rf/lf/lfgrabber.htm
>>
>> The 4X1RF grabber is very sensitive again, after some days of local QRM,
>> it seems :-)
>>
>> Very nice and an interesting goal!
>>
>> Will other stations try to appear there as well, tonight?
>>
>> Has a US station been able to apperat there so far? :-)
>>
>> 73, Stefan/DK7FC
>>
>>
>




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