Received: from post.thorcom.com (post.thorcom.com [195.171.43.25]) by mtain-dl01.r1000.mx.aol.com (Internet Inbound) with ESMTP id DBB923800009B; Sun, 14 Aug 2011 13:23:44 -0400 (EDT) Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1QseOk-0008Uw-Ob for rs_out_1@blacksheep.org; Sun, 14 Aug 2011 18:22:54 +0100 Received: from [195.171.43.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1QseOk-0008Un-2q for rsgb_lf_group@blacksheep.org; Sun, 14 Aug 2011 18:22:54 +0100 Received: from nm13-vm0.bullet.mail.sp2.yahoo.com ([98.139.91.244]) by relay1.thorcom.net with smtp (Exim 4.63) (envelope-from ) id 1QseOh-0008Ii-OO for rsgb_lf_group@blacksheep.org; Sun, 14 Aug 2011 18:22:54 +0100 Received: from [98.139.91.64] by nm13.bullet.mail.sp2.yahoo.com with NNFMP; 14 Aug 2011 17:22:44 -0000 Received: from [98.139.91.29] by tm4.bullet.mail.sp2.yahoo.com with NNFMP; 14 Aug 2011 17:22:44 -0000 Received: from [127.0.0.1] by omp1029.mail.sp2.yahoo.com with NNFMP; 14 Aug 2011 17:22:44 -0000 X-Yahoo-Newman-Property: ymail-3 X-Yahoo-Newman-Id: 721114.36609.bm@omp1029.mail.sp2.yahoo.com Received: (qmail 59675 invoked by uid 60001); 14 Aug 2011 17:22:44 -0000 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=yahoo.com; s=s1024; t=1313342564; bh=lXm/RfPFK+8ZH0t5jnKoNtKDHBwENsAbr603bqKDFMc=; h=X-YMail-OSG:Received:X-Mailer:References:Message-ID:Date:From:Reply-To:Subject:To:In-Reply-To:MIME-Version:Content-Type; b=0SpTXj9SvJLEh0V/nxWODRZlTXuaHVnGzgNfc42p6NcHVFBp+krWWFhFoOhal/nHMXTJurZTVJZ4sg9TkL0aR8Yxl5OBP9uZxbxBx9CxKr1/nR2mF6h68ELBHc6H7yI2D74eUvg2VZirtjZwkwzqQMuHQ3KqMkvw2bGwet64Gm0= DomainKey-Signature:a=rsa-sha1; q=dns; c=nofws; s=s1024; d=yahoo.com; h=X-YMail-OSG:Received:X-Mailer:References:Message-ID:Date:From:Reply-To:Subject:To:In-Reply-To:MIME-Version:Content-Type; b=aegZaylMQc0Q1zHYMI6CniVNGKHev13Nf008zV1PSfvLM2GPEFC9DE1/iCb8bSsWy7DWn7B6rmgE0mevTxrDK2P6RFUgLedN3gvRclaFbCBtUdxjyOc9eFWmr/sjjDQuGPG+1hGGrpuZvsiwTzhsxmgY/eNCsmSZPQaHjHrA+fY=; X-YMail-OSG: JnPnfqcVM1mGUDKEuwUgUY4u9EOiZWJJyuAIIfzrMQ8leVk T6VOXR2tXbiFZhkTtzxKYLwWUD944J2HBDg6i9lLoTNwi7smEGYG6kgLOh1O VH8jwj17fpanSmhTY3AeYL8sSSL_yWAJfv69Lx8is.zChlE2xBQnv7FmWrpx qHA7SvBTFQdSwzAUYxcNX1XoC6Iv0fW2KjaDQxy.3SJyPr6Y9HzSowvcYbcy dsnbq17j24rnSf38nAwwLscJZKF3eJHmF.Ou1O08mT69IwRHxDljXN6hOiRL jCrJGhJv2SpH2TkgNxF7Q6Ti.A3DtKxsYoq6vn3hqNxj.lwlGjBvg4KZJk_Z w4wooBiwta3xBBGgSse0KJVcdafiB5vHqFUzuT9t_dzfGFKNoKl1Ps0UuyX6 mYdxR_lN8WrBlXhtTs.BMxS7W0SVmxUsPpuWPRwk6txIVMuzd7oG03jMWAfQ klNxIbY5jm75c1o5C2Uk- Received: from [87.6.203.78] by web111901.mail.gq1.yahoo.com via HTTP; Sun, 14 Aug 2011 10:22:44 PDT X-Mailer: YahooMailWebService/0.8.113.313619 References: <68BE37BD69E54DEE89CEBA8E30E9B94E@PcMinto> <4E47FFE9.10100@iup.uni-heidelberg.de> <1313342206.32812.YahooMailNeo@web111901.mail.gq1.yahoo.com> Message-ID: <1313342564.53367.YahooMailNeo@web111901.mail.gq1.yahoo.com> Date: Sun, 14 Aug 2011 10:22:44 -0700 (PDT) From: Daniele Tincani To: "rsgb_lf_group@blacksheep.org" In-Reply-To: <1313342206.32812.YahooMailNeo@web111901.mail.gq1.yahoo.com> MIME-Version: 1.0 DomainKey-Status: good (testing) X-Spam-Score: 1.4 (+) X-Spam-Report: autolearn=disabled,HTML_MESSAGE=0.001,HTML_TINY_FONT=1.425 Subject: Re: LF: Re: 137 grabbers Content-Type: multipart/alternative; boundary="0-1198222350-1313342564=:53367" X-Spam-Checker-Version: SpamAssassin 2.63 (2004-01-11) on post.thorcom.com X-Spam-Level: ** X-Spam-Status: No, hits=2.9 required=5.0 tests=FORGED_YAHOO_RCVD,HTML_40_50, HTML_MESSAGE,TO_ADDRESS_EQ_REAL,WEIRD_PORT 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: 0:2:483061568:93952408 X-AOL-SCOLL-URL_COUNT: 0 X-AOL-SCOLL-AUTHENTICATION: mail_rly_antispam_dkim-d243.2 ; domain : yahoo.com DKIM : fail x-aol-sid: 3039ac1d4acf4e4804a03c99 X-AOL-IP: 195.171.43.25 X-AOL-SPF: domain : blacksheep.org SPF : none --0-1198222350-1313342564=:53367 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable I have also built it recently, using PN2222A and with some adjustments to t= he circuit, on advice by Steve Ratzlaff (thank you Steve for you help!).=0A= Despite my reduced abilities as an homebrewer, first tests with a very prov= isional loop=C2=A0gave promising results, so I'm moving to next step, that = is, building a=C2=A0better loop for more regular listening activity during = the coming winter.=0ARegards=0ADaniele=0A=0AFrom: Daniele Tincani =0ATo: "rsgb_lf_group@blacksheep.org" =0ASent: Sunday, August 14, 2011 7:16 PM=0ASubject: Re: LF: Re: 1= 37 grabbers=0A=0A=0AIf I'm not worng,=C2=A0it is the well-known M0AYF desig= n.=0ARegards=0ADaniele=0A=0AFrom: Stefan Sch=C3=A4fer =0ATo: rsgb_lf_group@blacksheep.org=0ASent: Sunday, Augus= t 14, 2011 7:03 PM=0ASubject: Re: LF: Re: 137 grabbers=0A=0A=0AThis looks l= ike a very good design. Fascinating easy!! Is it completely=0Agrown in your= head or have you seen it somewhere in the web?=0AWhat is the gain, about? = I know the BC337 as a low noise NPN transistor.=0AYour loop is 2m diameter?= How many dBs is the background noise abovethe=0Asoundcard noise?=0A=0AAnot= her question: Why are the T37-43 (the 43 types in general)=0Apreferred to t= he 77 types? The 77 types have a higher AL value and=0Ashould come out with= less turns. I tried to wind a band pass coil with=0Abut of the types (T50-= 43 and T50-77) and achieved about the same Q. Is=0Ait just a question of an= available distributor?=0A=0AAnd what is your job? Do you have to design el= ectrical circuits? ;-)=0A=0A73, Stefan/DK7FC=0A=0A=0A=0A=0AAm 14.08.2011 18= :07, schrieb Minto Witteveen: =0A =0A>Loop antenna: http://www.pa3bca.nl/in= dex.php?option=3Dcom_content&view=3Darticle&id=3D10&Itemid=3D14 =0A>From: = Minto Witteveen =0A>Sent: Sunday, August 14, 2011 18:03 =0A>To: rsgb_lf_gr= oup@blacksheep.org =0A>Subject: Re: LF: 137 grabbers =0A> Mal, LF, =0A>= =0A>I am now using a single-turn loop in the backyard (hight abt 2=0Ameters= ) instead of the miniwhip. =0A>One of these days I will test again with the= miniwhip. First impression=0A(testing the noise against DCF39) was that th= ey dont differ very much. =0A>=0A>73=E2=80=99s Minto pa3bca (grabber at htt= p://pa3bca.pa3bca.nl:8181) =0A>=0A>---------------------------------------= -----------------------------------=0A>Ceterum censeo Carthaginem delendam = esse=0A> =0A>=0A>From: mal=0Ahamilton =0A>Sent: Sunday, August 14, 2011 17= :51 =0A>To: rsgb =0A>Subject: LF: 137 grabbers =0A> LF =0A>My signal see= ms consistant on the PA3PCA=0Agrabber but varies a lot on the DK7FC grabber= , sometimes stronger on=0Athis grabber and others like now barely visible. = Could it be the type=0Aof antenna in use ie one is more prone to noise es q= sb than the other? =0A>de =0A>mal/g3kev --0-1198222350-1313342564=:53367 Content-Type: text/html; charset=utf-8 Content-Transfer-Encoding: quoted-printable
I have also built it = recently, using PN2222A and with some adjustments to the circuit, on advice= by Steve Ratzlaff (thank you Steve for you help!).
= Despite my reduced abilities as an homebrewer, first tests with a very prov= isional loop gave promising results, so I'm moving to next step, that = is, building a better loop for more regular listening activity during = the coming winter.
Regards
Da= niele

From: Daniele Tincani <danieletincani@yahoo.com= >
To: "rsgb_lf_group= @blacksheep.org" <rsgb_lf_group@blacksheep.org>
Sent: Sunday, August 14, 2011 7:16 PM
= Subject: Re: LF: Re: 137 grab= bers

If I'm not worng, it is the well-known M0AYF = design.
Regards
Daniele

From: Stefan Sch=C3=A4fer <Stefan.Sc= haefer@iup.uni-heidelberg.de>
T= o: rsgb_lf_group@blacksheep.org
Sent: Sunday, August 14, 2011 7:03 PM
Subject: Re: LF: Re: 137 grabbers

=0A=0A=0A =0A=0A =0AThis looks like a ve= ry good design. Fascinating easy!! Is it completely=0Agrown in your head or= have you seen it somewhere in the web?
=0AWhat is the gain, about? I kn= ow the BC337 as a low noise NPN transistor.
=0AYour loop is 2m diameter?= How many dBs is the background noise abovethe=0Asoundcard noise?
=0A=0AAnother question: Why are the T37-43 (the 43 types in general)=0Aprefer= red to the 77 types? The 77 types have a higher AL value and=0Ashould come = out with less turns. I tried to wind a band pass coil with=0Abut of the typ= es (T50-43 and T50-77) and achieved about the same Q. Is=0Ait just a questi= on of an available distributor?
=0A
=0AAnd what is your job? Do you h= ave to design electrical circuits? ;-)
=0A
=0A73, Stefan/DK7FC
=0A=
=0A
=0A
=0A
=0AAm 14.08.2011 18:07, schrieb Minto Witteveen:= =0A
=0A =0A =0A =0A
=0A
=0A =0A
=0A
=0A
=0A =0A
Sent: Sunday, August 14, 2011 18:03=
=0A =0A
Subject: Re: LF: 137 grabbers
=0A <= /div>=0A
=0A
 
=0A
=0A
=0A
=0A
=0A
Mal, LF,
=0A
 
=0A
I am= now using a single-turn loop in the backyard (hight abt 2=0Ameters) instea= d of the miniwhip.
=0AOne of these days I will test again with the mini= whip. First impression=0A(testing the noise against DCF39) was that they do= nt differ very much.
=0A
 
=0A
73=E2=80=99s Mint= o pa3bca (grabber at http://pa3bca.pa3bca.nl:8181)
=0A
&n= bsp;
=0A
------------------------------------------------------------= --------------
=0ACeterum censeo Carthaginem delendam esse
=0A =0A
=0A
=0A
 
=0A
=0A
From: mal=0Ahamilton =0A
Sent: Sunday, August 14, 2011 17:51
=0A
T= o: rsgb
=0A
Subject: LF: 137= grabbers
=0A
=0A
=0A
 
=0A
=0A =
=0A
LF
=0A
My signal seems consistant on the PA3PCA=0Agrabber but varies a = lot on the DK7FC grabber, sometimes stronger on=0Athis grabber and others l= ike now barely visible. Could it be the type=0Aof antenna in use ie one is = more prone to noise es qsb than the other?
=0A
de
=0A
mal/g3kev=0A
=0A
=0A
=0A
=0A
=0A
=0A=0A =0A=0A




--0-1198222350-1313342564=:53367--