Return-Path: Received: from post.thorcom.com (post.thorcom.com [195.171.43.25]) by klubnl.pl (8.14.4/8.14.4/Debian-8+deb8u2) with ESMTP id w3GC1QIw022521 for ; Mon, 16 Apr 2018 14:01:29 +0200 Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1f82kU-0002R0-NQ for rs_out_1@blacksheep.org; Mon, 16 Apr 2018 12:56:42 +0100 Received: from [195.171.43.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1f82kU-0002Qr-DV for rsgb_lf_group@blacksheep.org; Mon, 16 Apr 2018 12:56:42 +0100 Received: from mail-wr0-x236.google.com ([2a00:1450:400c:c0c::236]) by relay1.thorcom.net with esmtps (TLSv1.2:ECDHE-RSA-AES256-GCM-SHA384:256) (Exim 4.89) (envelope-from ) id 1f82kQ-0001Br-BT for rsgb_lf_group@blacksheep.org; Mon, 16 Apr 2018 12:56:41 +0100 Received: by mail-wr0-x236.google.com with SMTP id y7so25172304wrh.10 for ; Mon, 16 Apr 2018 04:56:38 -0700 (PDT) X-DKIM-Result: Domain=gmail.com Result=Good and Known Domain DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=mime-version:in-reply-to:references:from:date:message-id:subject:to; bh=HbuFfO2KMoubUsQfsBi2cgnKujuhPfbKKVtI299qDOo=; b=MoQUZVA8TppXnLZfEPZYF4JRW7z/Fkmwr37pSycK2C5D22YdU+k3gEWTpT+78OT2Yb gFxtIldZb2WlCd+4fNXRe7zFZTtMckWLGUNPc+YFnExOro7nWvBJWPkqBb9oZeoCk887 d+9NKd3Lb0O5fCZh5nno8WZCJZAqqcbLpZoxhVIbl9mnKol+Oiz4mBImtRDLJ/xFZZZP FB5sKxgRTfvuFws0rBMQRUtQ11Q5nwTjNZ5aY493UOiJJwi/I//5pLd4PBmSldNqvaU1 TPVBUOhJ1uRikpAXguyv8DCrJuGdL3+7dsq1epUTk00BiEoSbi9HlKd9JW+gpAjvBwXR R0Nw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:in-reply-to:references:from:date :message-id:subject:to; bh=HbuFfO2KMoubUsQfsBi2cgnKujuhPfbKKVtI299qDOo=; b=XoJ32ylqH0HjQ/Xdf95uo8PvX+d3VwIHo7vBwnfBkwPXOPVz1yagf1azFhK9hQHNJ7 1MU9ZOXxAGQXAbbUsoz/JbJi4+Gdw92VYBgdnJBN18hQLzTD5egmK5PmNSaVP1Gm1osP HVEM5I6pOF8tW26nCNhi4cK3GgmCKOHoZ7D214bZZ2mMxWegqsUKl9h8CVy4DrVg0P4J 80W4J4m/n7n83gwM5QOiadRDkFje1lEvYpPRRRNijClJEWFzhrqctaTWW50mgJScWBmw 6+ilz3FbNO7KRRGhMM8ZQz3eqIwyVop2iVhkurwhy4wPsd1T3qQkOglMdWZZb5rMGoc2 KugQ== X-Gm-Message-State: ALQs6tBXvsN+0154rhsZ+p1uy0qZ1fL9LFITpGG9F8aPVs2sA1TFLMip uQQ6NNeb1axom5+LB5YmRLG1m7usu1aumctE4ZRc+g== X-Google-Smtp-Source: AIpwx4/RoOdNxVIH+Pkg0Mv15Q3gpCrupMluYAUZor0PE9rz0ME2afAkIwIIAbyObxcuYnqTABVzqOyYG29y2bonDAM= X-Received: by 10.80.247.77 with SMTP id j13mr31882751edn.18.1523879797239; Mon, 16 Apr 2018 04:56:37 -0700 (PDT) MIME-Version: 1.0 Received: by 10.80.154.195 with HTTP; Mon, 16 Apr 2018 04:56:36 -0700 (PDT) In-Reply-To: <53374766.20180416124731@gmail.com> References: <53374766.20180416124731@gmail.com> From: Andy Talbot Date: Mon, 16 Apr 2018 12:56:36 +0100 Message-ID: To: LineOne X-Spam-Score: 1.0 (+) X-Spam-Report: Spam detection software, running on the system "relay1.thorcom.net", has NOT identified this incoming email as spam. The original message has been attached to this so you can view it or label similar future email. If you have any questions, see the administrator of that system for details. Content preview: http://www.lz1aq.signacor.com/ For LF use you could probably increase coupling caps and use a bigger loop, and change the input LPF This is the one members of our club (IVARC) have been making as a club project. 19 have been made, all on a custom SMT PCB as an exercise in SMT construction as well as members having an RX loop for noise reduction at HF (And no, PCBs are not available outside club membership) [...] Content analysis details: (1.0 points, 5.0 required) pts rule name description ---- ---------------------- -------------------------------------------------- 0.0 FREEMAIL_FROM Sender email is commonly abused enduser mail provider (andy.g4jnt[at]gmail.com) 0.0 HTML_MESSAGE BODY: HTML included in message 0.0 T_DKIM_INVALID DKIM-Signature header exists but is not valid 1.0 FREEMAIL_REPLY From and body contain different freemails X-Scan-Signature: bf9cd6b3d49c805062abf73a1027fea8 Subject: Re: LF: Active loop antennas Content-Type: multipart/alternative; boundary="f4f5e80b83f8feb5cc0569f5e92a" X-Spam-Checker-Version: SpamAssassin 2.63 (2004-01-11) on post.thorcom.com X-Spam-Level: X-Spam-Status: No, hits=0.6 required=5.0 tests=HTML_20_30, HTML_FONTCOLOR_UNSAFE,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 --f4f5e80b83f8feb5cc0569f5e92a Content-Type: text/plain; charset="UTF-8" http://www.lz1aq.signacor.com/ For LF use you could probably increase coupling caps and use a bigger loop, and change the input LPF This is the one members of our club (IVARC) have been making as a club project. 19 have been made, all on a custom SMT PCB as an exercise in SMT construction as well as members having an RX loop for noise reduction at HF (And no, PCBs are not available outside club membership) Andy G4JNT On 16 April 2018 at 12:47, Chris Wilson wrote: > > > Hello LF'ers > > I am having no luck with my mini whip antenna, for whatever reason it > seems very deaf, so was wondering if I can home brew something like the > magic box of tricks for the (expensive IMHO) Wellbrook Active Large > Aperture Loop Antenna shown here: > > https://www.wellbrook.uk.com/loopantennas/Loop_Antennas/ALA100LN > > Anyone know of anything that is similar and documented for home > construction please? > > > > -- > Best regards, > Chris mailto:dead.fets@gmail.com > > > --f4f5e80b83f8feb5cc0569f5e92a Content-Type: text/html; charset="UTF-8" Content-Transfer-Encoding: quoted-printable
http://www.lz1a= q.signacor.com/

For LF use you could probably in= crease coupling caps and use a bigger loop, and change the input LPF
<= div>
This is the one members of our club (IVARC) have been ma= king as a club project.=C2=A0 =C2=A019 have been made, all on a custom SMT = PCB as an exercise in SMT construction as well as members having an RX loop= for noise reduction at HF=C2=A0 =C2=A0(And no, PCBs are not available outs= ide club membership)

Andy=C2=A0 G4JNT
<= div class=3D"gmail_extra">
On 16 April 2018 a= t 12:47, Chris Wilson <dead.fets@gmail.com> wrote:


Hello LF'ers

I=C2=A0 am having no luck with my mini whip antenna, for whatever reason it=
seems very deaf, so was wondering if I can home brew something like the
magic=C2=A0 box=C2=A0 of=C2=A0 tricks for the (expensive IMHO) Wellbrook Ac= tive Large
Aperture Loop Antenna shown here:

https://www.wellbrook.uk.com/lo= opantennas/Loop_Antennas/ALA100LN

Anyone=C2=A0 know=C2=A0 of=C2=A0 anything=C2=A0 that=C2=A0 is=C2=A0 similar= =C2=A0 and documented for home
construction please?



--
Best regards,
=C2=A0Chris=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 = =C2=A0 =C2=A0 =C2=A0 =C2=A0 mailto:d= ead.fets@gmail.com



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